Relationship of Gonadotropin-Releasing Hormones (GnRH) Induction to Reproductive Performance in Batur Sheep

  • Chomsiatun Nurul Hidayah Animal Science Faculty
  • M Y Sumaryadi
  • D M Saleh
  • A P Nugroho
  • A D Nurasih

Abstract

Experiments were performed to determine the relationship of Gonadotropin-Releasing Hormone (GnRH) induction to estrus activity and pregnancy rate of Batur sheep. Twenty Batur sheep were synchronized to estrus using intramuscularly injection of 2 ml PGF2α that repeated in 11-day intervals. GnRH was given intramuscularly on the 9th day for 10 Batur sheep, and 10 others were not injected as a control. Reproductive performance included estrus intensity, estrus onset, mating time period, and pregnancy rate. The data were analyzed by regression correlation tests, and chi-square test were used for pregnancy rate. The statistical analysis results showed that the induction of GnRH has a very significant relationship (P<0.01) to the intensity and onset of estrus as well as the time-mating period it has a significant relationship (P<0.05). The pregnancy rate was significantly different (P<0.05) between control and GnRH-induced in Batur sheep. The results showed that GnRH induction contributed to the intensity of estrus, the onset of estrus, and the time-mating period of 37.88, 42.79, and 22.16%, respectively. The pregnancy rate in Batur sheep induced by GnRH compared to controls has 25.0% increased. It can conclude that GnRH induction was able to improve reproductive performance in Batur sheep

Published
2023-02-06
How to Cite
HIDAYAH, Chomsiatun Nurul et al. Relationship of Gonadotropin-Releasing Hormones (GnRH) Induction to Reproductive Performance in Batur Sheep. Proceeding ICMA-SURE, [S.l.], p. 140-146, feb. 2023. ISSN 2808-2702. Available at: <https://jos.unsoed.ac.id/index.php/eprocicma/article/view/7826>. Date accessed: 04 apr. 2025. doi: https://doi.org/10.20884/2.procicma.2023.2.1.7826.