EFFECT OF OVSYNCH ON PREGNANCY RATE IN CROSSBRED HEIFERS

Authors

  • A Vijayarajan Department of Clinics Veterinary College and Research Institute Namakkal, Tamilnadu- 637 001
  • C Chandrahasan Department of Clinics Veterinary College and Research Institute Namakkal, Tamilnadu- 637 001
  • R Ezakial Napolean Department of Clinics Veterinary College and Research Institute Namakkal, Tamilnadu- 637 001

DOI:

https://doi.org/10.48165/

Keywords:

Heifers, Synchronization, Timed insemination, GnRH

Abstract

Synchronization of ovulation (Ovsynch) was tested in 10 crossbred heifers using Gonadotropin Releasing Hormone (GnRH) and Prostaglandin F2α (PGF2α). Another 10 heifers served as control and were inseminated at detected estrous. The onset of estrus was synchronized in Ovsynch group and the percentage of induced estrus was 100 per cent. The first service conception rate was lower for Ovsynch group than the control group. But three animals conceived in the Ovsynch group and none conceived in the control group of animals during the second service. 

Downloads

Download data is not yet available.

References

Ahmad, N., Schrick , F.N., Butcher, R.L.and Inskeep, E.K.,(1995). Biol. Reprod.52:1129-1135.

Ambrose, D.J., Rajamahendran, R., Kastelic, J.P. and Small, J.A., (2001). Arch. Anim. Breeding 44 : 77 – 79.

Austin,E.J., Mihm, M., Ryan, M.P., Williams, D.H. and Roche, J.F., (1999). J. Anim. Sci., 77 : 2219 – 2226.

Castilho, C., Gambini, A.L.G., Fernandes, P., Trinca, L.A., Teixeira, A.B. and Barros, C.M., (2000). Brazilian J. Med. Biol. Res., 33 : 91 – 101.

Haughian, J.M. and Wiltbank, M.C., (2002). Proc. Annual Conference Society for Theriogenology, USA : 221 – 235.

Moreira, F. and Thatcher, W.W., (2000). J.Anim. Sci., 78 : 1568 – 1576.

Pursley, J.R., Mee, M.O. and Wiltbank, M.C., (1995). Theriogenology, 44 : 915 – 923. Pursley, J.R., Silcox, R.W. and Wiltbank, M.C., (1998). J. Dairy Sci., 81 : 2139 – 2144. Schmitt, E.J.P., Diaz, T., Drost, M. and Thatcher, W.W., (1996). J.Anim.Sci., 74 :1084 – 1091. Twagiramungu, H., Guilbault, L.A. and Dufour, J.J., (1995). J.Anim. Sci., 73 : 3141 – 3151.

Downloads

Published

2009-03-15

Issue

Vol. 5 No. 1 (2009): The Indian Journal of Veterinary Sciences and Biotechnology (IJVSBT) (2009)

Section

Articles

License

Copyright (c) 2024 Indian Journal of Veterinary Sciences & Biotechnology

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

How to Cite

Vijayarajan, A., Chandrahasan, C., & Napolean, R.E. (2009). EFFECT OF OVSYNCH ON PREGNANCY RATE IN CROSSBRED HEIFERS. Indian Journal of Veterinary Sciences and Biotechnology, 5(1), 52–53. https://doi.org/10.48165/
Crossref
Scopus
Google Scholar
Europe PMC