EFFICACY OF GnRH-PGF2alpha •GnRH, PMSG AND PMSG + hCG IN POSTPARTUM ANESTROUS CROSSBRED COWS

Authors

  • S MUNEER Department of Animal Reproduction, Gynaecology and Obstetrics, College of Veterinary Science, Hyderabad- 500 030
  • K SADASIVA RAO
  • K G SOLMON RAJU

Keywords:

Crossbred cattle, Postpartum anestrum, Hormonal therapy

Abstract

A total of 80 Frieswal crossbred cows having history of postpartum anestrum for more than 45 days were selected. The cows were randomly divided into 4 groups. Three groups were treated with ovysynch
protocol, PMSG and PMSG + hCG, and the group 4 was control group. The time interval between the treatment and estrus was 7 .00 ± 1.46, 2. 75 ± 0.23, 3.90 ± 1.17 and 16.45 ± 2.92 days in group 1, 2, 3 and 4, respectively. The Al index was 1.44, 1.71, 1.75 and 1.66, in group 1, 2, 3 and 4, respectively,
and the corresponding service period was 81.33 ± 5.62 (58-158), 70.50 ± 5.24 (48-99), 73.37 ± 5.16 (49-105) and 69.50 ± 7.44 (52-98) days. The overall conception rate was 90, 70, 80 and 30 %, in group  1, 2, 3 and 4, respectively. The conception rate was higher in GnRH-PGF 2a -GnRH group than in the other groups. All the three groups were effective for induction of estrus in postpartum anestrus crossbred
cows.

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Published

2023-01-25

Issue

Vol. 30 No. 1 (2009): Indian Journal of Animal Reproduction

Section

Research Article

How to Cite

MUNEER, S., RAO, K.S., & RAJU, K.G.S. (2023). EFFICACY OF GnRH-PGF2alpha •GnRH, PMSG AND PMSG + hCG IN POSTPARTUM ANESTROUS CROSSBRED COWS. The Indian Journal of Animal Reproduction, 30(1), 7–9. Retrieved from https://acspublisher.com/journals/index.php/ijar/article/view/5107