Studies on the effect of gonadotrophin releasing hormone administration on conception rate following artificial insemination in cattle maintained under sub-temperate climate

Abstract

In all, 346 animals comprising of 167 Jersey and 179 Jersey X Red Sindhi crossbred cows were inseminated
artificially at livestock farm of Himachal Pradesh Krishi Vishvavidyalya, Palampur. Buserelin acetate and Gonadorelin were
injected through intra muscular route for the treatment as GnRH analogues. Depending upon the groups, either single or double
inseminations were performed in these cows. In double insemination group, the cows were reinseminated 24 hours after the first AI. Among the Jersey cows 59.6 and 53.8% animals conceived, following GnRH administration and 40.0 and 45.0% conceived
in control group (without GnRH) following single or double insemination, respectively. Similarly, among crossbred cows, 58.and 55.5% animals conceived when inseminated along with GnRH and 45 .0 and 60.0% conceived in control groups following single and double insemination, respectively.