Effect of breeding season on fertility of sheep following estrus synchronization and fixed-time artificial insemination under field conditions in semi-arid tropical region
作者： Kalyan De , Davendra Kumar , Krishnappa Balaganur , Rajeev Gulyani , S. M. K. Naqvi
DOI: 10.1080/09291016.2016.1197497
关键词: Endocrinology 、 Seasonal breeder 、 Animal science 、 Domestic sheep reproduction 、 Fertility 、 Sperm 、 Estrous cycle 、 Artificial insemination 、 Reproductive technology 、 Internal medicine 、 Biology 、 Semen
摘要: AbstractAccelerated lambing system is heavily reliant on reproductive technologies meant to enable off the season breeding in sheep. Therefore, present study was programmed assess effect of (BS) fertility sheep following estrus synchronization (ES) and fixed time artificial insemination (FTAI). A total 248 365 ewes were synchronized inseminated during BS (Febuary–March July–September) non-breeding (NBS) respectively, 2012–14. Synchronization done by AVIKESIL-S, intra-vaginal progesterone sponges kept situ vagina for 12 days. 200 IU eCG administered intramuscularly 12th day after sponge withdrawal. FTAI performed twice exhibiting signs at 48 56h removal, using liquid chilled semen Patanwadi/Malpura rams containing 100 million sperm. Breeding had no significant (p<0.05) synchronization. The estrous responses NBS 84.68% 8...
sci-hub.se 参考文章(34)
J. E. Wheaton, H. F. Windels, L. J. Johnston, Accelerated lambing using exogenous progesterone and the ram effect. Journal of Animal Science. ,vol. 70, pp. 2628- 2635 ,(1992) , 10.2527/1992.7092628X
S K Sankhyan, A Sahoo, O H Chaturvedi, S A Karim, Nutrient utilization and reproductive performance of flushing ewes grazing on Community rangeland Indian Journal of Animal Sciences. ,vol. 82, ,(2012)
Sándor Kukovics, Artificial Insemination of Sheep - Possibilities, Realities and Techniques at the Farm Level InTech. ,(2011) , 10.5772/16642
R M Lewis, D R Notter, D E Hogue, B H Magee, Ewe fertility in the STAR accelerated lambing system Journal of Animal Science. ,vol. 74, pp. 1511- 1522 ,(1996) , 10.2527/1996.7471511X
S. Wildeus, Current concepts in synchronization of estrus: Sheep and goats Journal of Animal Science. ,vol. 77, pp. 1- 14 ,(2000) , 10.2527/JAS2000.00218812007700ES0040X
Vijay Kumar Saxena, Kalyan De, Davendra Kumar, Syed Mohammad Khursheed Naqvi, Narayanan Krishnaswamy, Ashok Kumar Tiwari, Induction of ovulation in anestrus ewes using a dopamine receptor antagonist. Theriogenology. ,vol. 84, pp. 1362- 1366 ,(2015) , 10.1016/J.THERIOGENOLOGY.2015.07.020
J. F. SMITH, A. J. ALLISON, The effect of exogenous progestagen on the production of cervical mucus in the ewe. Reproduction. ,vol. 24, pp. 279- 282 ,(1971) , 10.1530/JRF.0.0240279
S. Indu, V. Sejian, S. M. K. Naqvi, Impact of simulated semiarid tropical environmental conditions on growth, physiological adaptability, blood metabolites and endocrine responses in Malpura ewes Animal Production Science. ,vol. 55, pp. 766- 776 ,(2015) , 10.1071/AN14085
R Ungerfeld, E Rubianes, Short term primings with different progestogen intravaginal devices (MAP, FGA and CIDR) for eCG-estrous induction in anestrus ewes Small Ruminant Research. ,vol. 46, pp. 63- 66 ,(2002) , 10.1016/S0921-4488(02)00105-0
G. deNicolo, S.T. Morris, P.R. Kenyon, P.C.H. Morel, T.J. Parkinson, Induced seasonal reproductive performance in two breeds of sheep. Animal Reproduction Science. ,vol. 103, pp. 278- 289 ,(2008) , 10.1016/J.ANIREPROSCI.2007.01.009