Prof. Dr. Nasim Ahmad, S.I.

Professor Emeritus

Academic Credentials:

  • Ph.D, Reproductive Physiology, West Virginia University, 1996
  • M.Sc, Reproductive Physiology,  University of Agriculture Faisalabad, 1984
  • Doctor of Veterinary Medicine, University of Agriculture Faisalabad, 1981

HEC Approved Supervisor

Biograph

Prof. Dr. Nasim Ahmad is Professor Emeritus at the University of Veterinary and Animal Sciences, Lahore. He is Professor Emeritus in the same institution which is a distinguished position. Under his leadership, a team of microbiologists was successful in establishing a Biosafety Level-3 laboratory at UVAS for early recognition and rapid diagnosis of COVID-19 to help out the community. During the challenging time of pandemic he introduced the concept of veterinary telemedicine for effective benefit of the animal owners. During this period UVAS has been ranked 3rd in the HEC sports ranking. He currently member of the syndicate of the University of Education as well as the Cholistan University of Veterinary and Animal Sciences, Bahawalpur. Moreover, He is member of the selection board of Kohsar University, Murree.
Prof. Dr. Nasim Ahmad graduated in Veterinary Medicine (DVM) in 1981 and received his Master’s degree (MSc Hons) in Animal Reproduction in 1984, from the College of Veterinary Sciences, Lahore, and Ph.D. in Reproductive Physiology in 1996 from West Virginia University, USA. He has served as first Pro-Vice-Chancellor and Director ORIC and Professor (Tenured) at UVAS. He earlier served as Dean of Faculty of Life Sciences and Business Management, as well asFaculty of Veterinary Science, and Chairman, Department of Theriogenology at the University of Veterinary and Animal Sciences, Lahore. His research interests are improving fertility through enhancing post-thaw semen quality and optimizing protocols of estrus synchronization and ovulation. Earlier, he directed a male infertility laboratory (for humans) in New York. He is credited with introducing the use of ultrasonography in Animal Reproduction research, training, and extension in Pakistan. Prof. Dr. Ahmad is the author of more than seventy publications in high-impact factor journals. His total impact factor is more than 90. He has more than 2500 citations.
He is a regular reviewer for Theriogenology and Animal Reproduction Science journals. He has won competitive research grants as PI worth more than Rs. 39.3 million and development projects of more than Rs. 474 million. He has supervised or co-supervised seventy Master and twelve Doctoral students. He remained Honorary Secretary of the Society of Prevention of Cruelty of Animals, Punjab. In recognition of his research work and he has been awarded “PARC Scientist of the year: 1999”, Research Productivity Allowance three times from PCST, Best University Teacher Award for the year 2007 from HEC, and Sitara-e-Imtiaz 2008, Presidential Civil Award.

Area of Interest

  • Establishment of the synchronization protocols in buffaloes and Sahiwal cows
  • Improvement in the fertility of dairy animals

Publications


  • N. Ahmad, U. Arshad, M. Hassan, 2022, Chapter 4: Reproductive Management of Dairy Buffaloes in Biotechnological Applications in Buffalo Research, Springer, Karnal, India.

 

  • Saeed Murtaza, Abdul Sattar, Nasim Ahmad, Muhmmad Jamil Ahmad, Saleem Akhtar, Ejaz Ahmad, Tanveer Ahmad, Talha Omer. “Effect of exogenous administration of oxytocin on postpartum follicular dynamics, oestrous rate and ovulation in Nili-Ravi buffaloes”. Reproduction in Domestic Animals (2021) IF : 2.005 https://doi.org/10.1111/rda.14001
  • Mudassar Nawaz, Amjad Riaz, Nasim Ahmad, Imran Zahoor, Muhammad Saleem, Farid Ullah, Shabir Malik. “Exogenous progesterone dependent modulation in the follicular dynamics of Bos indicus cattle undergoing repeated ovum pick-up sessions”. Reproduction in Domestic Animals (2021) IF : 2.005 https://doi.org/10.1111/rda.14028
  • Muhammad Ashraf, Ijaz Farid, Wasim Shehzad, Muhammad Rizwan Yousaf, Nasim Ahmad, Awais Ihsan, Khalid Javed, Hasan Riaz, and Amjad Riaz. Effects of Different Nutritional Regimens during Pre-Weaning Period on Body and Testis Growth, Sexual Behavior, Hormonal Profile and Genes Expression in Male Beetal Goat Kids. Pakistan Veterinary Journal (2021). IF: 1.175 http://pvj.com.pk/pdf-files/41_2/242-248.pdf
  • Hassan, M., M. Y. Arfat, U. Arshad, and N. Ahmad. Ovarian dynamics, hormone profiles, and characterization of ovarian and uterine blood flow in cycling Sahiwal cows. South African Journal of Animal Science 51, no. 2 (2021): 194-204. IF: 0.847 https://hdl.handle.net/10520/ejc-sajas_v51_n2_a7
  • Mubbashar Hassan, Usman Arshad, Güneş Erdoğan, and Nasim Ahmad. Evaluation of haemodynamic changes of uterine arteries using Doppler ultrasonography during different stages of pregnancy in Bos indicus cows. Reproduction in Domestic Animals 55, no. 10 (2020): 1425-1433. IF: 1.641 https://doi.org/10.1111/rda.13793
  • Muhammad Ashraf, Mati Ullah, Muhammad Rizwan Yousuf, Nasim Ahmad, Khalid Javad, Amjad Riaz, and Hasan Riaz. Serum Anti-Mullerian Hormone Profile from 10 Days of Age to Puberty and Its Relationship with Serum Testosterone and Estradiol Concentrations in Beetal Goat Kids. Pakistan Veterinary Journal 40, no. 3 (2020): 370-374. IF: 1.175 http://www.pvj.com.pk/pdf-files/40_3/370-374.pdf
  • Masroor Sagheer, Farid Ullah, Usman Arshad, Muhammad Saleem, Mudassar Nawaz, Zaeem Sarwar, Muhammad Saad, Amjad Riaz, Muhammad Naveed ul Haque, Atia Basheer, Nasim Ahmad. Effect of photoperiodicity and methods of follicular wave emergence on follicle turnover, recovery and quality of oocytes, and early in-vitro developmental competence of embryos using ovum pick-up in Nili-Ravi buffaloes: Preliminary evidence. Theriogenology 2020 IF: 2.0459 https://doi.org/10.1016/j.theriogenology.2020.07.021
  • N. Ahmad, U. Arshad. Synchronization and resynchronization strategies to improve fertility in dairy buffaloes. Theriogenology 2020 IF: 2.299 https://doi.org/10.1016/j.theriogenology.2020.01.025
  • A.A. Channa, M. Aleem, M. A. Jabbar, H. Monir and N. Ahmad. Fertility of lactating Jersey X Holstein Friesian cows in subtropical region submitted to a double-ovsynch versus ovsynch protocol for timed artificial insemination. Journal of Animal and Plant Sciences 2020 (Accepted) IF: 0.529 https://doi.org/10.1016/j.smallrumres.2019.106026
  • N. Hameed, M. I. R. Khan, W. Ahmad, M. Abbas, A. Murtaza, M. Shahzad, N. Ahmad. Follicular dynamics, estrous response and pregnancy rate following GnRH and progesterone priming with or without eCG during non-breeding season in anestrous Beetal goats. Small Ruminant Research 2020. IF: 1.21 https://doi.org/10.1016/j.smallrumres.2019.106026
  • S. Murtaza, A. Sattar, N. Ahmad, M. Ijaz, M. Irfan-ur-Rehman Khan, M. Akhtar, A. Zia and B. E. Azam. Consequence of exogenous administration of oxytocin on reproductive and productive parameters during postpartum involution period in newly calved Nili-Ravi buffaloes. Pakistan Journal of Zoology 2019 IF: 0.790 https://dx.doi.org/10.17582/journal.pjz/20190514070502
  • S. Murtaza, A. Sattar, N. Ahmad, M. Ijaz, T. Omer, M. Akhtar and M. Shahzad. Long term administration of exogenous oxytocin: effects on pregnancy rate, and embryonic and fetal losses in nili-ravi buffalo. Journal of Animal and Plant Sciences 2019 IF: 0.529
  • Z. Sarwar, M. Saad, M. Saleem, A. Riaz and N. Ahmad. Effect of follicular size on oocytes recovery, quality and in vitro developmental competence in Bos indicus cows. Animal Reproduction  2020 IF: 0.916 https://doi.org/10.1590/1984-3143-AR2020-0011
  • Saad M, Sarwar Z, Saleem M, Arshad U, Shahzad M, Hassan Mushtaq M, Husnain A, Riaz A, Ahmad N. Effect of plasma progesterone on recovery, quality and early in vitro embryonic development of oocytes in Bos indicus dairy cows. Animal Reproduction Science 2019 (Accepted) IF: 1.511 https://doi.org/10.1016/j.anireprosci.2019.02.001
  • Riaz U, Hassan M, Husnain A, Naveed MI, Singh J, Ahmad N. Effect of timing of artificial insemination in relation to onset of standing estrus on pregnancy per AI in Nili-Ravi buffalo. Animal Reproduction 2018 IF: 0.991 https://dx.doi.org/10.21451%2F1984-3143-AR2017-0015
  • Hassan M , Arshad U, Bilal M, Sattar A, Avais M, Bollwein H, Ahmad N. Luteal blood flow measured by Doppler ultrasonography during the first three weeks after artificial insemination in pregnant and non-pregnant Bos indicus dairy cows. Journal of Reproduction and Development 2018 IF: 1.635 https://doi.org/10.1262/jrd.2018-084
  • Khan AS, Haider MS, Hassan M, Husnain A, Yousuf MR, Ahmad N. Equine chorionic gonadotropin (eCG) enhances reproductive responses in CIDR-EB treated lactating anovular Nili-Ravi buffalo during the breeding season. Animal Reproduction Science 2018 doi: 10.1016/j.anireprosci.2018.06.012. IF: 1.511 https://doi.org/10.1016/j.anireprosci.2018.06.012
  • Qayyum A, Arshad U, Yousuf MR, Ahmad N. Effect of breeding method and season on pregnancy rate and embryonic and fetal losses in lactating Nili-Ravi buffaloes. Tropical Animal Health Production 2017 IF: 0.91 https://doi.org/10.1007/s11250-017-1468-4
  • Ahmad. M, Ahmed. M, Ahmad. N. Optimization of Acridine Orange Staining for Buffalo Sperm, Cryopreserved in Egg Yolk based Extender to Detect DNA Fragmentation. Pakistan Journal of Zoology. 2017 IF: 0.491 http://dx.doi.org/10.17582/journal.pjz/2017.49.5.sc6
  • Arshad U, Qayyum.A, Hassan.M, Husnain.A, Sattar.A, Ahmad.N. Effect of resynchronization with GnRH or progesterone (P4) intravaginal device (CIDR) on Day 23 after timed artificial insemination on cumulative pregnancy and embryonic losses in CIDR-GnRH synchronized Nili-Ravi buffaloes. Theriogenology 2017.  doi.org/10.1016/j.theriogenology.2017.07.054. IF: 2.13 https://doi.org/10.1016/j.theriogenology.2017.07.054
  • Hassan M, Sattar A, Bilal M, Avais M, Ahmad N. Evaluation of changes in blood flow of the uterine artery by Doppler ultrasonography during the estrous cycle in lactating Bos indicus cows. Animal Reproduction Science 2017, IF:1.511 https://doi.org/10.1016/j.anireprosci.2017.07.001
  • Mehmood MU, Qamar A, Sattar A, Ahmad L, Ahmad N. Incorporation of estradiol benzoate to CIDR protocol improves the reproductive responses in crossbred dairy heifers. Tropical Animal Health and Production 2017. IF:0.870 https://doi.org/10.1007/s11250-016-1198-z
  • Effect of cholesterol loaded cyclodextrinson post thaw semen quality in dogs. M.Z Tahir, A. Sattar, N. Ahmad, J. Khan, A. Khalid. doi: 10.1111/rda.12893. Reproduction in Domestic Animals 2017 IF:1.4 https://doi.org/10.1111/rda.12893
  • M. Hassan, A. Husnain, M. I. Naveed, U. Riaz, N. Ahmad. Effect of PGF2α, vs. Ovsynch synchronization protocols on estrus response, ovulation rate, and pregnancy per AI in Sahiwal cows. Animal Science Journal 2017 IF: 0.96
  • Khan MIR,  Haq EM, Rehman A, Mohsin I, Hassan M, Ahmad N and Kausar R, Diagnosis of Ovarian Follicular Cyst in a Beetal Goat by Ultrasonography and Treatment with GnRH-PGF2α   Pakistan Veterinary Journal 2016. ISSN: 0253-8318 (PRINT), 2074-7764 IF: 0.88
  • Yousuf MR,  Martins JP, Ahmad N, Nobis K, Pursley JR. Presynchronization of lactating dairy cows with PGF2α and GnRH simultaneously, 7 days before Ovsynch have similar outcomes compared to G6G. Theriogenology 2016. : IF: 1.838 https://doi.org/10.1016/j.theriogenology.2016.05.021
  • S. Iqbal, A. Riaz, S. M. H. Andrabi, Q. Shahzad, A. Z. Durrani and N. Ahmad. L-cystine improves antioxidant enzyme activity, post-thaw quality and fertility of Nili-Ravi buffalo (Bubalus bubalis) Andrologia 2016. doi: 10.1111/and.12520. 2016, 48, 943–949 IF:1.5. https://doi.org/10.1111/and.12520
  • Iqbal S, Andrabi S.M.H, Riaz.A,  Durrani A.Z, N. Ahmad. Trehalose improves semen antioxidant enzymes activity, post-thaw quality and fertility in Nili Ravi buffaloes. Theriogenology 2016. 85: 954-959.IF: 1.7 https://doi.org/10.1016/j.theriogenology.2015.11.004
  • Wadood F, M. Aleem, A. Ijaz, N. Ahmad, M.S. Yousaf, D.H. Mughal. Effect of extender osmolality and butylated hydroxyl toluene supplementation on post-thaw quality and fertility of Nili-Ravi buffalo bull (Bubalus bubalis). The Journal of Animal and Plant Science 2015. (Accepted) 26(3): 2016, Page: 605-611  IF: 0.5.
  • Wadood F, M. Aleem, A. Ijaz, N. Ahmad, M.S. Yousaf, D.H. Mughal, A. Javid, and S.A. Mahmood. Effect of L-Cystine on post-thaw quality of Nili-Ravi buffalo (Bubalus bubalis) bull spermatozoa cryopreserved in Tris citric acid extender. The Journal of Animal and Plant Science 2015. 25 (1), 301-303. IF: 0.5. http://www.thejaps.org.pk/docs/v-25-01/42.pdf
  • M.S. Haider, M. Hassan, A.S. Khan, A. Husnain, M. Bilal, J.R. Pursley, N. Ahmad.  Pregnancy rates after timed insemination following removal of intravaginal progesterone releasing device with or without gonadotropin-releasing hormone in Nili-Ravi buffalo Animal Reproduction Science2015. 163: 24-29. IF: 1.51 https://doi.org/10.1016/j.anireprosci.2015.09.010
  • Muhammad R Yousuf; J.P N Martin; Ali Husnain; Hasan Riaz; Abdul Sattar; Khalid Javed; Nasim Ahmad. Effect of Estradiol Benzoate on Estrus Intensity and Pregnancy Rate in CIDR treated anestrus heifers and adult Buffaloes .Animal Reproduction Science 2015. 159: 104-108. IF: 1.51 https://doi.org/10.1016/j.anireprosci.2015.06.003
  • Mushtaq Ahmad, Rashad Nasrullah, Nasim Ahmad. Effect of cooling rate and equilibration time on pre-freeze and post-thaw survival of buck sperm. Cryobiology.2015,70: 233–238.IF: 1.587 https://doi.org/10.1071/RD13400
  • Mushtaq Ahmad, Nasim Ahmad, Amjad Riaz, and Muhammad Anzar. Sperm survival kinetics in different types of bull semen: Progressive motility, plasma membrane integrity, acrosomal status and reactive oxygen species generation. Reproduction, Fertility and Development. 2014http://dx.doi.org/10.1071/RD13400 2015, 27, 784–793  IF. 2.583
  • Ahmad E,  Ahmad N, Naseer. Z. Association of Scrotal Circumference with Sperm production and Semen Quality in Sahiwal Bulls.Pakistan Veterinary Journal.2013, 34(2): 265-266. IF: 0.813 http://pvj.com.pk/pdf-files/34_2/265-266.pdf
  • Ahmad M, Nusrullah R. Riaz H, Sattar A, Ahmad N. Changes in motility, plasma membrane and acrosomal integrity and morphology during cryopreservation of buck sperm. Journal of South African Veterinary Association 2014. Feb 28;85(1):972. doi: 10.4102/jsava.v85i1.972. IF: 0.50 https://hdl.handle.net/10520/EJC149576
  • Hassan Mahmood Warriach, Mushtaq Memon, Nasim Ahmad, Scott Norman, Abdul Ghaffar, Muhammad Arif. Reproductive Performance of Arabian and Thoroughbred Mares under Subtropical Conditions of Pakistan. Asian-Australasian Journal of Animal Sciences. 2014. 27(7): 932–936.IF: 0.6 https://dx.doi.org/10.5713%2Fajas.2013.13547
  • Sattar A, Qamar AY, Ahmad N. Cholesterol enhances post-thaw semen quality in buffalo (Bubalus bubalis).10thWorld Buffalo Congress (Thailand). Buffalo Bulletin 2013, 370-374 IF: 0.06
  • Gohar H, Rabbani M, Ahmad A, Ahmad N, Sheikh AA Muhammad K. Detection of Bovine Viral Diarrea Virus Prevelant in Dairy Herds of Punjab, Pakistan. 10th World Buffalo Congress (Thailand). Buffalo Bulletin.2013, 1088-1090. IF: 0.06
  • Raza S, Rabbani M, Ahmad N, Sheikh AA, Muhammad K, Akhtar F, Habib ur Rehman. Uterine Microbial Flora of Nili-Ravi Buffalo during Estrus and its Relationship with Pregnancy Rate in Pakisatan. 10th World Buffalo Congress (Thailand) Buffalo Bulletin.2013. 564-567.IF: 0.06
  • Ahmad N, Ahmad E, Naseer Z, Riaz U, Husnain A. 2013. Effect of Improving Reproductive Management on Dairy Farm Economics. 10th World Buffalo Congress (Thailand). Buffalo Bulletin 2013; 32(special issue 2) 464-467 IF:0.06
  • Ejaz Ahmad, Zahid Naseer, Nasim Ahmad. High trehalose concentration in Tris-Based egg yolk extender has detrimental effect on post-thaw semen quality in Nili-Ravi buffalo bull. Animal Health Prod and Hyg (Turkey) (2013) 2(2): 213-215. https://dergipark.org.tr/en/pub/aduveterinary/issue/58864/849039
  • Akhtar M. Javed K, Abdullah M,Ahmad N, Elzo M A. Environmental factors affecting postweaning traits of Buchi sheep in Pakistan. The Journal of Animal & Plant Sciences *2013. 23(3): 699-704. IF: 0.54
  • Ijaz MS, Mahmood AK, Ahmad N, Khan MA, Farooq U. Viability of Split Thickness Autogenous Skin Transformation in Canine Distal Limb Reconstruction- An Experimental Evaluation . Pakistan Veterinary Journal.2012 32: 193-196. IF: 0.813
  • Riaz H, Ahmad N. Ovarian follicular dynamics around estrus in Beetal and Teddy goats. Pakistan Veterinary Journal.  2012. 33: 120-122. IF: 0.813 http://pvj.com.pk/pdf-files/33_1/120-122.pdf
  • Mehmood MU,Mehmood S, Riaz A, Ahmad N, Sattar A. Superovulatory response in summer anestrus buffaloes and cattle treated with estrus synchronization protocol. Journal of Animal & Plant Sciences 2012: 22(4): 888-893. IF: 0.63
  • Naseer Z, Ahmad N, Khan MIR, Ahmad E, Tahir MZ, Singh J. Effect of GnRH and Estradiol Benzoate on Follicular Wave Emergence, Estrus, Ovulation and Pregnancy Rate in CIDR Treated Nili-Ravi Buffaloes. Journal of Animal and Plants Science 2012. 22 (3 Suppl.):142-146. IF: 0.25
  • Ahmad SS, Khan MS, Khan MA, Ahmad N. Prevalence of Babesiosis in Cats in Lahore, Pakistan, The Journal of Animal and Plant Sciences, 21(2 Suppl.): 2011.:354-357.IF 0.25 http://thejaps.org.pk/docs/21-2-suppl/JAPS-6(Final).pdf
  • Riaz H, Sattar M A, Arshad M A, Ahmad N. Effect of synchronization protocols (Ovsynch vs 2PG) and GnRH on reproductive performance in goats. Small Ruminant Research. 2011 65, 279-283. IF: 1.6 https://doi.org/10.1016/j.smallrumres.2011.10.008
  • Riaz H, Aleem M, Ahmad N. Dystocia in BlackBucks. Pakistan Veterinary Journal. 2011. 301-302 , IF: 0.7 http://pvj.com.pk/pdf-files/32_2/301-302.pdf
  • Naseer Z, Ahmad E, Singh J, Ahmad N. Fertility Following CIDR Based Synchronization regimens in anestrous Nili Ravi Buffaloes. Reproduction in Domestic Animal 201146(5):814-817.IF:1.606 https://doi.org/10.1111/j.1439-0531.2010.01746.x
  • Ahmad E, Ahmad N, Naseer Z, Aleem M, Khan, M.S, Ashiq M, Younis M,. Effect of age on body weight, scrotal circumference, number of pixels of testicular ultrasonograms and semen quality in Sahiwal bulls. Tropical Animal Health and Production 2011 43: 159-164.IF: 0.95 https://doi.org/10.1007/s11250-010-9668-1
  • Anzar M, Rasul Z, and Ahmad N. Response of buffalo sperm to low temperature during cryopreservation.Reproduction and Fertility Development 2010;22(5):871-80. IF: 2.9 https://doi.org/10.1071/RD09174
  • Ahmad N, Umair S, Shahab M and Arslan M. Testicular Development and Establishment of spermatogenesis in Nili-Ravi Buffalo Bulls, Theriogenology73 2010 20–25.IF: 1.91 https://doi.org/10.1016/j.theriogenology.2009.06.034

    Nasir A, Avais M, Khan MS and Ahmad N. Prevalence of Cryptosporidium parvum infection in Lahore (Pakistan) and its association with diarrhea in dairy calves. Int. J. Agric. Biol., 2009;11: 221–224. https://www.researchgate.net/profile/Amar-Nasir/publication/268298354

    Warriach HM and Ahmad N. Follicular Population during the oestrus cycle in Nili-Ravi buffaloes undergoing spontaneous and PGF2α-induced luteolysis. Asian Journal of Animal Science 2009; 22(8): 1113 https://doi.org/10.5713/ajas.2009.90029
  • Khan DR,Ahmad N,Anzar M and Channa AA. Apoptosis in fresh and cryopreserved buffalo spermatozoa. Theriogenology 2009; 71:872–876.IF: 2.136 https://doi.org/10.1016/j.theriogenology.2008.09.056
  • Warriach HM, Ahmad N, Ahmad G, Khan MS, Rabbani M andAhmad M. Effect of antibiotics treatment on pregnancy rate of repeat breeder cross bred cows. Pakistan Veterinary Journal. 2008; 28(1): 40-42. https://www.researchgate.net/profile/Gulfam-Ahmad-2/publication/26520125
  • Warriach HM, Channa AA and Ahmad N. Effect of oestrus synchronization methods on oestrus behaviour, timing of ovulation and pregnancy rate during the breeding and low breeding season in Nili-Ravi buffaloes. Animal Reproduction Science 2008; 107:62-67. IF: 2.136 https://doi.org/10.1016/j.anireprosci.2007.06.007
  • Rasul, Z, Ahmad N, and Anzar M. Antagonist effect of DMSO on the cryoprotection ability of glycerol during cryopresevation of buffalo spermatozoa. Theriogenology 2007; 68:813-819 IF: 2.161 https://doi.org/10.1016/j.theriogenology.2007.06.014
  • Warriach HM and Ahmad N. Follicular waves during the oestrus cycle in Nili-Ravi buffaloes undergoing spontaneous and PGF2α-induced luteolysis. Animal Reproduction Science2007;101:332-337 IF: 2.136 https://doi.org/10.1016/j.anireprosci.2007.01.013
  • Starbuck MJ, Hugo Hernandez Fonseca,  Ahmad N, Seidel GE. And Inskeep EK. Association of fertility with numbers of antral follicles within a follicular wave during the estrous cycle in beef cattle. Reproduction in Domestic Animal 2007; 42:337-342. IF: 1.835 https://doi.org/10.1111/j.1439-0531.2006.00786.x
  • Ahmad N, Saeed MA, Aleem M and Ullah A. Effect of Norgestomet and GnRH on Induction of Estrus and Fertility in Postpartum non-suckled Nili-Ravi Buffaloes (Bubalus bubalis). Buffalo Journal 2006; 2:155-163.
  • Khan, MIR, Rana MA, and Ahmad N. Ultrasonic monitoring of follicles and corpora lutea during synchronization and superovulation in summer anoestrous Nili-Ravi buffaloes. Pakistan Veterinary Journal 2005; 25:82-86. https://www.cabi.org/gara/mobile/FullTextPDF/2005/20053133367.pdf
  • Anzar M, Farooq U,  Mirza MA, Shahab M and Ahmad N. Factors affecting the efficiency of artificial insemination in cattle and buffalo in Punjab, Pakistan. Pakistan Veterinary Journal 2003; 23: 106-113. http://pvj.com.pk/pdf-files/23_3/106-113.pdf
  • Ahmad Z, Anzar M, Shahab M, Ahmad N, and Andrabi, SMH. Sephadex and sephadex ion-exchange filtration improves the quality and freezability of low grade buffalo semen ejaculates. Theriogenology 2003; 59: 1189-1202. IF: 2.161 https://doi.org/10.1016/S0093-691X(02)01159-7
  • Andrabi SMH, Ahmad N, Abbass A, and Anzar M. Effect of two different antibiotic combinations on fertility of frozen buffalo and Sahiwal bull semen. Pakistan Veterinary Journal 2002; 21:166-169. http://www.pvj.com.pk/pdf-files/21_4/166-169.pdf
  • Abbas A, Andrabi SMH, and Ahmad N. Effect of reducing the number of sperm cell [per insemination], increasing energy and cryoprotecting concentrations on motion characteristics and membrane integrity in frozen thawed buffalo spermatozoa. Pakistan Veterinary Journal 2001; 21:131-135. http://www.pvj.com.pk/pdf-files/21_3/131-135.pdf
  • Hasan S, Andrabi SMH, Munir R, Anzar M, Ahmad N. Effect of a new antibiotic combination on post-thaw motion characteristics of buffalo and Sahiwal bull spermatozoa and bacteriological quality of their semen. Pakistan Veterinary Journal 2001; 21:6-12. http://pvj.com.pk/pdf-files/21_1/6-12.pdf
  • Rasul Z, Ahmad N, Anzar M. Changes in motion characteristics, plasma membrane integrity, and acrosome morphology during cryopreservation of buffalo spermatozoa Journal of Andrology 2001; 22:278-283. IF: 2.035 https://doi.org/10.1002/j.1939-4640.2001.tb02181.x
  • Usmani RH, Ahmad N,  Parveen S. Effect of sub-clinical uterine infection on uterine involution estrus activity and fertility in postpartum buffaloes. Theriogenology 2001 55: 563-571. IF: 2.161 https://doi.org/10.1016/S0093-691X(01)00426-5
  • Bridges PJ, Wright DJ, Buford WI, Ahmad N, Hernandez-Fonseca H, McCormick ML, Schrick FN, Dailey RA and Inskeep EK. Ability of induced corpora lutea to maintain pregnancy in beef cows. Journal of Animal Science 2000; 78:2942-2949.  IF: 1.360 https://doi.org/10.2527/2000.78112942x
  • Rasul Z, Anzar M, Samina J, Ahmad N. Effect of buffering systems on post-thaw motion characteristics, plasma membrane integrity, and acrosome morphology of buffalo spermatozoa. Animal Reproduction Science 2000; 59:31-41. IF: 2.136 https://doi.org/10.1016/S0378-4320(00)00070-1
  • Ahmad N, Townsend EC, Dailey RA, Inskeep EK. Relationships of hormonal patterns and fertility to occurrence of two or three waves of ovarian follicles, before and after breeding, in beef cows and heifers. Animal Reproduction Science 1997; 49:13-28. IF: 2.136, Citations: 30. https://doi.org/10.1016/S0378-4320(97)00057-2
  • Taft R, Ahmad N and Inskeep EK. Exogenous pulses of luteinizing hormone prolong the persistence of the large follicles. Journal of Animal Science 1996; 74:2985-2991. IF: 1.360, Citations: 52. https://doi.org/10.2527/1996.74122985x
  • Cooperative Regional Research Project NE-161. (Ahmad N, Beam SW, Butler WR, Deaver DR, Duby RT, Elder DR, Griel Jr. LC, Fortune JE, Jones LS, Milvae RA, Pate JL, Revah I, Schreiber Jr. DT, Townson DH, Tsang PCW, Inskeep EK.)  Relationship of fertility to patterns of ovarian follicular development and associated hormonal profiles in dairy cows and heifers. Journal of Animal Science 1996; 74:1943-1952. IF: 1.360 https://doi.org/10.2527/1996.7481943x
  • Buford, WI, Ahmad N, Schrick FN, Butcher RL, Lewis PE, Inskeep EK. Embrotoxicity of a regressing corpus luteum in beef cows supplemented with progestogen. Biology of Reproduction 1996; 54:531-537. IF: 3.583. https://doi.org/10.1095/biolreprod54.3.531
  • Ahmad N, Schrick FN, Butcher RL, Inskeep EK. Effect of persistent follicles on early embryonic losses in beef cows. Biology of Reproduction 1995; 52:1129-1135. IF: 3.583 Citations: 240. https://doi.org/10.1095/biolreprod52.5.1129
  • Rao KM,  Ahmad N. Surgical implantation of radio-transmitter in wild boar. Pakistan Veterinary Journal 1994; 14:262.
  • Anzar M, Ahmad M, Nazir M, Ahmad N, Shah IH. Selection of buffalo bulls: Sexual behavior and its relationship to semen production and fertility. Theriogenology 1993; 40: 1187-1198. IF: 2.161 https://doi.org/10.1016/0093-691X(93)90289-H
  • Shahab M, Khurshid S, Arslan M, Ahmad N. Ontogeny of estradiol secretion in Nili-Ravi buffalo bulls. Theriogenology 1993; 39:1235-1243. IF: 2.161 https://doi.org/10.1016/0093-691X(93)90226-U
  • Ahmad N, Ullah N, Rao KM. Penile deviation in buffalo bull (Bubalus bubalis). Advances in Contraception and Delivery System 1992; 8:187-189.
  • Ahmad N, Shahab M, Anzar M, Arslan M. Changes in the behavior and androgen levels during pubertal development of the buffalo bull. Applied Animal Behavior Science 1991; 32:101-105. IF: 1.441 https://doi.org/10.1016/S0168-1591(05)80034-6
  • Arif M, Ahmad N, Shahab M, Arslan M. Effect of Pregnant Mare’s serum Gonadotropin (PMSG) on testicular functions in immature buffalo bull (Bubalus Bubulis). Asian Australasian Journal of Animal Science 1991; 4:1-5. IF: 0.845 https://doi.org/10.5713/ajas.1991.1
  • Ahmad N, Shahab M, Khurshid S, Arslan M. Pubertal development in the male buffalo buffalo: Longitudinal analysis of body growth, testicular size and serum profiles of testosterone and oestradiol. Animal Reproduction Science 1989; 19:161-170. IF: 2.136 https://doi.org/10.1016/0378-4320(89)90089-4
  • Iqbal N, Khan IH, Ahmad N, Ahmad J, Choudhary RA. Factors affecting extracellular release of transaminases from buffalo spermatozoa. Buffalo Journal 1988; 3:209-215.
  • Ahmad N, Ahmad M, Anzar M, Khan IH, Arslan M. Morphology of reproductive organs and related endocrine glands in newborn male buffaloes. Pakistan Veterinary Journal 1988; 8:159-163. https://agris.fao.org/agris-search/search.do?recordID=PK8900365
  • Anzar M, Ahmad M, Khan IH, Ahmad M, Ahmad N. Sexual performance of buffalo bulls during natural mating and semen collection. Buffalo Journal 1988; 2:149-160.
  • Zafar AH, Ahmad N, Shah SK. Effects of seasonal variation on semen production of Nili-Ravi buffalo bulls. Buffalo Journal 1988; 1:61-68.
  • Ahmad M, Ahmad N, Anzar M, Khan IH, Latif M, Ahmad M. Postmortem studies on infertile buffalo bulls: Testicular histology. Veterinary Record 1988; 122:229-231. IF: 1.017, https://europepmc.org/article/med/3363813
  • Ahmad M, Latif M, Ahmad M, Khan IH, Ahmad N, Anzar M. Postmortem studies on infertile buffalo bulls: Anatomical and microbiological findings. Veterinary Record 1985; 117:104-109. IF: 1.017 https://europepmc.org/article/med/4049694

 

 

 

  • Nasim Ahmad, Farid Ullah, Muhammad Saleem, Mudassar Nawaz, Muhammad Saad, Zaeem Sarwar, Masroor Sagheer, Ali Husnain, Usman Arshad, Amjad Riaz. Photoperiodicity affects the rate of oocyte recovery using ultrasound guided ovum pick-up in Nili-Ravi buffaloes. ICAR, Bologna Italy, 2020
  • S. Iqbal, S. Naz, A. Riaz, M. I. Rashid and N. Ahmad. Antioxidant Enzymes Profile during Cryopreservation of Nili Ravi buffalo (Bubalus bubalis) Bull Spermatozoa. IBC Lahore, Pakistan 2019
  • Qayyum, M. Hassan and N. Ahmad. Effect of CIDR-GNRH Based Synchronization on Pregnancy during Low Breeding Season in Delayed Pubertal Nili- Ravi Buffalo Heifers. IBC Lahore, Pakistan 2019
  • S. Murtaza, A. Sattar, N. Ahmad, M. Ijaz, M. Irfan-ur-Rehman Khan, M. Akhtar, A. Zia and B. E. Azam. Effect of Exogenous Administration of Oxytocin on Milk Production, Milk Contents and Somatic Cell Count in Freshly Lactating Nilli-Ravi Buffaloes. IBC Lahore, Pakistan 2019
  • S. Murtaza, A. Sattar, N. Ahmad, M. Ijaz, T. Omer, M. Akhtar and M. Shahzad. Outcomes of Exogenous Oxytocin Administration on Pregnancy Rate, Embryonic and Foetal Losses in Nili-Ravi Buffalo. IBC Lahore, Pakistan 2019
  • Z. Sarwar, M. Saad, M. Saleem, A. Riaz, N. Ahmad. Effect of follicular size on oocyte recovery rate, quality and in vitro developmental competency following maturation, fertilization, and culturing in Bos indicus cows IETS, New Orleans, USA 2019
  • M. Saad, Z. Sarwar, M. Saleem, U. Arshad, M. Shahzad, M. Ahmad, A. Riaz, N. Ahmad. Effect of corpus luteum on recovery rate, quality, and in vitro developmental competence of oocytes in Bos indicus dairy cows. IETS, New Orleans, USA 2019
  • Arshad.U, A. Qayyum.A, Hassan.M, Husnain.A, Sattar. A, Ahmad N. Administration of GnRH on day 23 post AI enhances plasma progesterone, embryonic survival and herd fertility in lactating Nili-Ravi Buffaloes. ESDAR, Cordoba, Spain 2018
  • M. Hassan, U. Arshad, M. Bilal, M. Avais, A. Sattar, H. Bollwein, N. Ahmad. Luteal blood flow measured by Doppler ultrasonography during the first three weeks after artificial insemination in pregnant and non-pregnant Bos indicus dairy cows. JDS Suppl. Knoxville, USA 2018
  • N. Ahmad, A. Rehman, S. Murtaza, M. R. Yousuf, U. Arshad, M. Ijaz, A. Riaz. Effect of Dalmavital on pregnancy rate in CIDR-synchronized Nili-Ravi buffaloes. A. Sattar, B. Munawwar, Journal of Dairy Science, USA 2017 .
  • N. Ahmad, A. Qayyum, U. Arshad. Effect of Method of Breeding and Season on Pregnancy Rate, Cumulative Embryonic and Fetal Losses in Lactating Nili-Ravi Buffalo. Journal of Animal Science, Baltimore, USA 2017.
  • U. Arshad, A. Qayyum, M. Hassan, A. Husnain, A. Sattar, N. Ahmad. Effect of resynchronization with GnRH or progesterone (P4) intravaginal device (CIDR) on Day 23 after timed artificial insemination on cumulative pregnancy and embryonic losses in CIDR-GnRH synchronized Nili-Ravi buffaloes. Journal of Animal Science, Baltimore, USA 2017.
  • A.H. Shahzad, A. Sattar, N. Ahmad, I. Ahmad, D. Nak, and Y. Nak. Evaluation of Ovsynch and CIDR inserted concurrently with or two days after initiation of Ovsynch protocol to improve reproductive performance in lactating dairy cows with low estrus detection efficiency. University, Bursa, Bursa, Turkey.
  • M.Z Tahir, A. Sattar, N. Ahmad, J. Khan, A. Khalid. Effect of cholesterol loaded cyclodextrinson post thaw semen quality in dogs. ICAR Tours France 2016
  • Sattar, F. Younas, S.M.H. Andrabi, N. Ahmad, M.U. Mehmood, A.Z. Durrani. Cysteine and glutathione improves post-thaw quality of Sahiwal bull spermatozoa.
  • M. Hassan, A.S. Khan, Muhammad B, Muhammad. A, Abdul. S, Güneş E, N. Ahmad. Measurement of Resistance Index of Uterine Artery with Doppler Sonography during Estrous Cycle in Sahiwal Cows.
  • N. Ahmad, U. Arshad, A. Qayyum, M. Hassan, A. Husnain, A.S. Khan. Resynchronization with Ovsynch Improve Pregnancy per AI and Reduce Embryonic Losses in CIDR-GnRH Synchronized Nili-Ravi Buffalo.(11th World Buffalo Congress, Colombia 2016)
  • Sattar, A.H. Shahzad, A. Husnain,I. Ahmad, N. Ahmad. Effect of resynchronization on already synchronized postpartum dairy cows. 29th World Buiatrics Congress, Dublin Ireland, 3-8 July, 2016. Abstract Book p: 553.
  • N. Ahmad, A.S. Khan, M.S. Haider, M. Hassan, A. Husnain, Abdul Sattar. Equine chorionic gonadotropin (eCG) enhances reproductive responses in CIDR-EB treated lactating Nili-Ravi buffalo. 18th International Congress on Animal Reproduction (ICAR-2016) LE Vinci Tours, France 2016 Abstract Book p: 480-481
  • Husnain, A. Rehman, M. Ahmad, U. Arshad, A. Sattar, N.Ahmad. Model for AI decision: Pre-insemination single time ultrasound scanning improves fertility in bovine. 18th International Congress on Animal Reproduction (ICAR-2016) LE Vinci Tours, France 2016 Abstract Book p: 550.
  • A.Sattar , A.H Shahzad , A. Husnain, I. Ahmad, N. Ahmad . Effect of resynchronization on already synchronized postpartum dairy cows.  Proceedings of the 29th World Buiatrics Congress, Dublin, Ireland, 3-8 July 2016 . P03-003-187
  • A.H. Shahzad, A. Sattar, I, Ahmad, A. Y. Qamar, N. Ahmad.2016. Evaluation of different Synchronization and early pregnancy diagnoses methods in postpartum Holstein cows. Journal of Animal Science 94(supplement):604
  • A.H. Hussain, A. Sattar, N. Ahmad, I. Ahmad, D. Nak, Y. Nak. 2015. Evaluation of Ovsynch and CIDR inserted concurrently with or two days after initiation of Ovsynch protocol to improve reproductive performance in lactating dairy cows with low estrus detection efficiency. Journal of Dairy Science 07/2015; 98(Suppl. 2):874.
  • Physical signs and time of ovulation in PGF2alpha induced estrus in Beetal goats. Muhammad Ejaz-ul-Haq, Muhammad Irfan-ur-Rehman Khan, Imran Mohsin, Abdul Rehman and Nasim Ahmad. Presented in 18th International Congress on Animal Reproduction, 26-30, June 2016, Tours,  France
  • M. Hassan, A. Razzaq, A. Husnain, A. A. Channa and N. Ahmad, Estrus Synchronization does not Improve Fertility in Chronically Repeat Breeding Sahiwal Cows. JVAS Vol. 5 (Suppl. 1) p39. ISDAR 2015, UVAS, Lahore Pakistan.
  • Husnain and N. Ahmad, Replacement for Commercial Dairy Farm: Intensive Breeding Program for Pre-pubertal Buffalo Heifers. JVAS Vol.5 (Suppl. 1) p37.ISDAR 2015, UVAS, Lahore Pakistan.
  • Masoood, I. Ahmad,M. Ahmad, N. Ahmad, Z. I. Qureshi and Z. Ahmad, Effect of Exogenous Growth Hormone on Semen Quality, Hematological Variables and Serum Testosterone Concentrations in Nili-Ravi Buffalo Bulls. JVAS Vol. 5 (Suppl. 1) p31.ISDAR  2015, UVAS, Lahore Pakistan
  • T. Mahmood, K. Javed, A. Ali, N. Ahmad, A. H. Saleem, M. Z. Farooq and S. Ahmad,Environmental Factors Affecting some Reproductive Traits in Holstein Friesian x Sahiwal Crossbred Cattle in Pakistan. JVAS Vol. 5 (Suppl. 1) p30. ISDAR 2015, UVAS, Lahore Pakistan.
  • Z. Iqbal1, M. Abdullah, K. Javed, J. A. Bhatti, N. Ahmad and F. Ahmad,Effect of Different Levels of Concentrate Mixture for Attaining Early Puberty in Sahiwal Heifers. JVAS Vol. 5 (Suppl. 1) p25. ISDAR 2015,UVAS,Lahore Pakistan
  • M. Shahzad, A. Sattar1, N. Ahmad, A. Rehman, M. Ahmad, M. S. Khan, M. Ahmed, A. A. Channa and S. Iqbal,Effect of Varying Concentrations of Bovine Serum Albumin and Egg Yolk on Post-Thaw Quality of Beetal Buck Semen. JVAS Vol. 5 (Suppl. 1) p25. ISDAR 2015, UVAS, Lahore Pakistan.
  • N. Ahmad, K. Javed, M. Abdullah, A. S. Hashmi, A. Ali and T. Hussain,Comparative Reproductive Performance of Beetal Goats in Accelerated and Annual Kidding Systems. JVAS Vol. 5 (Suppl. 1) p23. ISDAR 2015, UVAS, Lahore Pakistan.
  • H. Rehman, M. Rabbani, A. A. Sheikh, N. Ahmad, S. Raza and J. Muhammad,Studies on Uterine Microbial Flora of Sahiwal Cattle during Oestrus. JVAS Vol. 5 (Suppl. 1) p22. ISDAR 2015, UVAS, Lahore Pakistan.
  • A. Channa, Z. Ashraf, N. Ahmad, M. Ahmad, M. Ahmed and A. Z. Durani, Reducing Glycerol with Trehalose Supplementation Increases Survival of Bull Spermatozoa. JVAS Vol. 5 (Suppl. 1) p18. ISDAR 2015, UVAS, Lahore Pakistan.
  • Mushtaq, M. R. Ullah, N. Hussain, M. Ahmad, M. Z. Tahirand N. Ahmad, Effect of Skim Milk & Egg Yolk in Tris Based Extender on Liquid Storage of Buck Semen. JVAS Vol. 5 (Suppl. 1) p15. ISDAR 2015, UVAS, Lahore Pakistan.
  • S. Abbas, A. Husnain, M. Hassan and N. Ahmad, Effect of Timing of AI on Pregnancy in Estrus Synchronized Nili-Ravi Buffaloes: A Preliminary Study. JVAS Vol. 5 (Suppl. 1) p13. ISDAR 2015, UVAS, Lahore Pakistan.
  • M. Shahab, N Ahmad and M Arslan,Regulation of Puberty in Buffalo Bulls. JVAS Vol. 5 (Suppl. 1) p6. ISDAR 2015, UVAS, Lahore Pakistan.
  • N. Ahmad, New Approaches of Estrus Synchronization to Improve Reproductive Performance in Dairy Buffaloes. JVAS Vol. 5 (Suppl.1) p2. ISDAR 2015, UVAS, Lahore Pakistan.
  • Hammad Fayyaz, Sajid Iqbal, Muhammad Binymeen, Nasim Ahmad, Mushtaq Ahmad. α -Lipoic Acid improves the post-thaw quality and survival of Nili-Ravi buffalo bull sperm. ASAS, Joint Annual Meeting 2015, Florida USA.
  • Ali Husnain, Umair Riaz, Muhammad Ilyas Naveed, Mubbashar Hassan, Mian Abdul Sattar and Nasim Ahmad. Post insemination interventions: Effect of human chorionic gonadotropin-releasing hormone, and progesterone on ovulation and conception rates in Nili-Ravi buffaloes.ASAS, Joint Annual Meeting 2015, Florida USA.
  • A Sattar, A G Tarin, N Ahmad, K Javed, M Ahmad, A Razzaq, K Ahmad, M Younis. Cholesterol-loaded cyclodextrin improves the post thaw semen quality but not the fertility in Sahiwal bulls. J. Anim. Sci Vol. 92, E-Suppl. 2/J. Dairy Sci. Vol. 97, E-Suppl. 1.. ASAS, Joint Annual Meeting 2014, Kansas City Missouri USA.
  • Naveed MI, Husnain A, Riaz U, Hassan M, Sattar A, Ahmad N. Equine chorionic gonadotropin (eCG) improves follicular dynamics, estrus expression, ovulation and pregnancy rate in CIDR based estrus synchronization protocol in Nili-Ravi buffalo. J. Anim. Sci Vol. 92, E-Suppl. 2/J. Dairy Sci. Vol. 97, E-Suppl. 1.ASAS, Joint Annual Meeting 2014, Kansas City, Missouri USA.
  • N Ahmad, U Riaz, A Husnain, M Hassan, M I Naveed, A Sattar. Effect of Timing of Artificial Insemination and Ovulation in Relation to Onset of Standing Heat on Pregnancy Rate in Dairy Buffaloes. BSAS, ICFC, 18-21 May 2014, Ireland.
  • A Sattar, M Ramzan, A Riaz, M-D Ahmad, A Haq, N Ahmad. Comparison of two estradiol esters administered with previously used CIDR for oestrous synchronization in buffalo cows during the low breeding season. BSAS, ICFC, 18-21 May 2014, Ireland.
  • Ahmad M, Nasrullah R, Ahmad N. 2013. Less resilience of buck sperm from cold shock induced at pre-freeze and postthaw.106th Soc. Reprod. Dev. Meeting Tokyo, Japan 12-14 Sept.2013
  • Ahmad E,Ahmad N, Naseer Z. 2013.High trehalose concentration in tris-based egg yolk extender has detrimental effect on post-thawing semen quality in buffalo bullXV. International Veterinary Medicine Students Scientific Research Congress May 9-11, 2013, faculty of Veterinary Medicine, Istanbul University, Turkey
  • Ahmad E, Ahmad N, Naseer Z. 2012. Association of scrotal circumference with sperm production and semen quality in Sahiwal bulls. AAAA Meeting Vancouver, Canada
  • Ahmad M, Ahmad N, Riaz A, Anzar M. Bovine Sperm Death Kinetics: Changes in Motility, Acrosomes, and Plasma Membrane. Rep Fert Dev 23 (1)183 Intr. Embryo Transfer Society, 39th Annual Conference 19-22 Jan 2013 Hannover, Germany.
  • Ahmad M, Nasrullah R. Ahmad N. 2012.Dynamics of modifications in structural and functional characteristics of buck sperm during cryopreservation. Proc. 11th Intr. Conf. Goat Spain. p411 (abst # R-45) www.iga-goat world.com
  • Riaz A, Ali S, Sattar A, Channa AA, Ahmad N. Predicting the values of oocyte reserves by antral follicle count in buffalo ovaries. 2012. Proceedings of ICAR: July 29 – Aug. 2, 2012. Vancouver, British Columbia, Canada. Published in Reproduction in Domestic Animals, 47 (Suppl. 4):pp. 491 Abstract #1406.
  • Ahmad N. Comparison of three synchronization methods on estrus response and pregnancy rates in buffaloes.2012.ICAR:July 29 – Aug. 2, 2012. Vancouver, British Columbia, Canada. Abstract #1111
  • Ahmad N, Riaz H, Abdullah M. Effect of synchronization protocols (Ovsynch vs 2PG) and GnRH on reproductive performance in goats. 2011; ADSA ASAS JAM: July 10-14 2011, Louisiana. USA. (Suppl. 2):
  • Ahmad N, Naseer Z, Ahmad E,. Mushtaq M and. Singh J. Effect of Used CIDR and FSH on Estrus Expression and Pregnancy Rate during Low Breeding Season in Nili-Ravi Buffaloes. J. Anim. Sci. 2009; Montreal. Canada ; (Suppl. 2):
  • Nasir M, Awais M, Khan MS, and Ahmad N. Prevalence of Cryptosporidium Parvum infection in Lahore (Pakistan) and its association with Diarrhea in dairy calves. 35th All Pak Sci Conf. Dec 2008
  • Khan MIR, Tahir MZ, Naseer Z, Mushtaq M, Samad HA, Singh J and Ahmad N. Effect of estradiol benzoate and GnRH on follicular wave emergence, estrus, ovulation and pregnancy rate in CIDR treated post-partum Nili-Ravi buffaloes. The Society for Reproduction and Fertility; Conf. and Exhibit. 2008, University of Edinburgh 29th June-1stJuly 2008 p 58
  • Warriach, HM and Ahmad N. Effect of oestrus synchronization methods on oestrus behavior and timing of ovulation in Nili-Ravi buffaloes. Biennial Joint Meeting of the UK Fertility Societies, The University of York 2007 No. p 48
  • Starbuck-Clemmer, MJ, Hernandez Fonseca, H, Ahmad N, Siedel G, and Inskeep EK. Association of fertility with numbers of antral follicles that develop within a follicular wave during the estrous cycle in cattle.  Biol. Reprod. 2006; abst # 164 p. 109
  • Khan DRK, Channa AA, Saeed MA, Hussain I, Anzar M and Ahmad N. Molecular detection of programmed cell death (Apoptosis) in fresh and cryopreserved buffalo spermatozoa. National Symposium on Biotechnology for economic prosperity  July 24-26, 2006 Green Retreat, Nathiagali p104
  • Rana MA, KhanAK, Mahmood N, Ahmad N, Rashid HB and Bokhari SG. Comparative study of flank vs midline approach for ovariohysterectomy in cats. 34th Pak. (SAARC) countries Sci. Conf. 2006; Lahore p34
  • Warriach, HM and Ahmad N. Characteristics of follicular waves and associated ovarian events during the oestrous cycle in Nili-Ravi buffaloes undergoing spontaneous and PGF2α induced luteolysis.Society for the Reproduction and Fertility (SRF) Conference and National Ovarian Workshop, University of Leeds 3-5 July 2006 No. 12 p19
  • Ahmad N., Khan MIR and Rana MA. Ultrasonic monitoring of follicles and corpora lutea during synchronization and superovulation in summer anoestrous Nili-Ravi buffaloes.Biol Reprod.2005 (Suppl 1): abst # W183
  • Hasan S, Andrabi SMH, Munir R, Jehangir M, Shafique P, Anzar M and Mehmood A, Anwar M and Ahmad N. In vitro maturation of buffalo oocytes using flux system 1999. Proc. Intr. Embryo Transfer Society (submitted)
  • Ahmad N. Effect of a new antibiotic combination on post thaw semen quality of buffalo and Sahiwal bulls. Biol. Reprod. 2000; 62 (Suppl. 1): 47
  • Hanif R, Abbas F, Rasul Z, and Ahmad N. Effect of glycerol concentrations on post-thaw motility, recovery rate and longevity of buffalo spermatozoa. 1999,19th Congr. Of Zoology (Islamabad, April19-21) (abst# CPG-48) p181
  • Ahmad N, Ahmad Z, Anzar M and Shahab M.Sephadex and sephadex ion-exchange filtration improves the quality and freezability of lower grade buffalo semen. Biol. Reprod. 1999; 60 (Suppl. 1):135
  • Anzar M, Rasul Z, Ahmad N, Mustafa G and Shafiq P. Effect of stages of cryopreservation on motion characteristics, plasma membrane integrity and acrosome morphology of buffalo spermatozoa. Biol. Reprod. 1998; 58 (Suppl. 1): 117.
  • Ahmad N, Lewis PE, Walker CZ, AltFL, Inskeep EK. Effect of FSH on ovulation rate and prolificacy in seasonally anestrous ewes. 1996; J. Anim. Sci.74; (Suppl 1):212
  • Taft R, Ahmad N, Inskeep EK.  Exogenous pulses of luteinizing hormone prolong dominance of bovine follicles. 1996; J. Anim. Sci. 74; (Suppl 1):
  • BufordWI, Ahmad N, Schrick FN, Houghton JAS, Inskeep EK. Effect of premature luteal regression on embryo survival in beef cows given exogenous progestogen. J. Anim. Sci. 1994;72; (Suppl. 2):123.
  • Ahmad N, Schrick FN, Butcher RL, and Inskeep EK. Fertilization rate and early embryonic development in relation to persistent follicles and peripheral estradiol-17ß in beef cows. Biol. Reprod. 1994; 50 (Suppl. 1): 65.
  • Schrick FN, Pritchard JY, Ahmad N, Inskeep EK, Butcher RL. Influence of the uterus on embryonic survival in early postpartum beef cow. Biol. Reprod. 1993; 48 (Suppl. 1):161.
  • Ahmad N, Malik MR, Shahab M, Arslan M. The ontogeny of testosterone secretion in Nili-Ravi buffalo bulls. Proc. 3rdIntr. Pak. Vet. Med. Assoc. Congr. (Islamabad). 1990; p. 47.
  • Ahmad N, Shahab M, Mirza MA. Periejaculation profile of serum testosterone in Nili-Ravi buffalo bulls. Proc. 3rdIntr. Pak. Vet. Med. Assoc. Congr. (Islamabad). 1990; p.37.
  • Shahab M, Ahmad N, Arslan M. Ontogeny of pulsatile secretion of serum testosterone and oestradiol in Nili-Ravi buffalo bulls. Proc. II World Buff. Congr. (New Delhi) 1988; 1:97.
  • Iqbal N, Khan AG, Usmani RH, Ahmad N, Ahmad W.  Effect of energy supplementation and exogenous progesterone on induction of puberty in water buffaloes. Proc. 11thIntr. Congr. On Anim. Reprod. And AI (Dublin). 1988; 1:533.
  • Anzar M, Ahmad M, Khan IH, Ahmad M, Ahmad N. Sexual performance of buffalo bulls with special reference to infertility. Proc. Intr. Symp. Milk Buff. Reprod. Eds. Richter W, Heuer C, Anwar M. Eschborn (Islamabad) 1987; 353-354.
  • Ahmad N, Ahmad M, Anjum S, Shahab M, Jalali S, Arslan M. Testicular development and establishment of spermatogenesis in Nili-Ravi buffalo bulls. Proc. Intr. Symp. Milk Buff.Reprod. Eds. Richter W, Heuer C, Anwar M. Eschborn  (Islamabad) 1987; 351-352.
  • Arslan M, Shahab M, Khurshid S, Shah SK, Ahmad N. Pubertal development in Nili-Ravi buffalo bulls: A longitudinal study. Proc. Intr. Symp. Milk Buff. Reprod. Eds. Richter W, Heuer C, Anwar M. Eschborn (Islamabad) 1987; p. 17.
  • Aliya S, Ahmad N, Shahab M, Arslan M. In vitro testicular androgenesis in Nili-Ravi buffalo bulls: Effect of LHRH exposure. Buff. Bull. 1986; 5:92.
  • Arslan M, Ahmad N, Sahir N, Qazi MH. Serum testosterone response in intramuscular and intravenous administration of LHRH in adult Nili-Ravi buffalo bulls. Proc. First World Buff. Congr. (Cairo) 1985; p.197.
  • Ahmad N, Sahir N, Ullah N, Qazi MH, Arslan M. Serum testosterone and progesterone in adult Nili-Ravi buffalo bulls (Bubalus bubalis) – Response to hCG stimulation. Buff. Bull. 1985; 4:37.

 

 

 

Manual/Report/Proceedings:

  • Manual on Artificial Insemination in Water buffaloes and Cattle. PARC/JICA. 1998.
  • Ahmad N, Saeed, MA, Afzal M. Editors. Proceedings National Seminar on livestock Breed Improvement, Present Status and its Future, Lahore, 2004:1-85.
  • Ahmad N. Report on limited export of animals and animal’s by-products. Edited. Department of Theriogenology and Department of Planning, UVAS, Lahore, 2004.
  • Karim, A. Ahmad N and Hanif S. Editors. Proceedings 14th Asian Commonwealth Association Conference 21-23 Sep, Lahore, 2005: 1-203.
  • Ahmad N and Rabbani M.(Eds.) UVAS Annual Report 2006-07
  • Ahmad N.(Ed) UVAS Annual Report 2007-08
  • Ahmad N.(Ed) UVAS Annual Report 2008-09
  • Ahmad N. Warriach HM, Saadia H. HEC R&D First Annual Report 2006 Effects of synchronization, improved reproductive management, productive potential and economics in buffalo farming HEC Project/20-593/R&D
  • Ahmad N, Warriach HM and Hanif S. Authors. An Urdu booklet “Reproductive management for profitable dairy farming” 2008.
  • Ahmad N, Durrani AZ, Ijaz M, Akbar H, Ahmad M, Abbas S, Mahmood B. 2013 University of Veterinary and Animal Sciences, UVAS Alumni Association Directory.  2013.
  • Ahmad N.  HEC R&D Second and Final Annual Report 2006 Effects of synchronization, improved reproductive management, productive potential and economics in buffalo farming HEC Project/20-593/R&D
  • Ahmad N ALP/PARC Final Project Report Synchronization of Estrus in Buffaloes to Enhance Herd Fertility Using Various Protocols 2011
  • Ahmad N, Warriach HM, Saadia H. Effect of Synchronization, and Improved Reproductive Management (IRM) on Reproductive Potential and Economics in Buffalo Farming Final Project Report HEC 2013
  • Ahmad N et al Annual Report ALP/PARC Sahiwal and Cholistani First 2014
  • Ahmad N et al Annual Report ALP/PARC Sahiwal and Cholistani Second 2015
  • Ahmad N et al Annual Report (Technical) ALP/PARC Sahiwal and Cholistani third 2015
  • Ahmad N et al Final Report (Technical) HEC of project ‘Parthenogenetic Activation and Development of mouse embryos’ HEC. 2018
  • Ahmad N et al Annual Report (Technical) of project ‘Development of the Suitable Protocol for Ultrasound Guided Oocyte Aspiration (Ovum Pick Up-OPU), In-Vito Embryo Production (IVEP)  and Transfer (ET) in buffalo and Sahiwal Cow for Exploiting the Genetic Potential’ HEC, 2018

Postgraduate Produces:

M.Phil produced as Supervisor

 40

M.Phil under supervision

 2

P.hD produced as Supervisor

 5

M.Phil produced as member

 30

P.hD produced as member

 7