Comparison of the reproductive performance of the Kacang goats on three synchronization methods

Abstract

<p class="MDPI17abstract"><strong><span lang="EN-US">Objective: </span></strong><span lang="EN-US">This study was conducted to investigate the effect of different methods synchronized on the reproductive performance of the Kacang Goats, estrus response, pregnancy rate, kidding rate, twins and litter size.</span></p><p class="MDPI17abstract"><strong><span lang="EN-US">Methods: </span></strong><span lang="EN-US">Forty-five </span><span lang="EN-US">dam of Kacang goats were divided into three groups (n= 15); 1) goats were injected 1 ml PGF</span><sub><span lang="EN-US">2</span></sub><span lang="EN-US">α</span><span lang="EN-US"> (Lutalyse<sup>TM</sup>) on day 1st and after days 11nd. 2) goats have injected 1 ml of GnRH (Fertagyl<sup>TM</sup>) on day 1st and the 7th day was injected 1 ml of </span><span lang="EN-US">PGF</span><sub><span lang="EN-US">2</span></sub><span lang="EN-US">α</span><span lang="EN-US">. 3</span><span lang="EN-US">) goats have received 1 ml progesterone (Progesterone-C) on the first day and the 7th day was injected with 1 ml </span><span lang="EN-US">PGF</span><sub><span lang="EN-US">2</span></sub><span lang="EN-US">α</span><span lang="EN-US">. Estrus observations were made on the 12th day for the first group, 8th day for the second </span><span lang="EN-US">group and 8th day for the third group. </span><span lang="EN-US">This data analyzed with a t-test. The effects were considered to be significant when the level of probability was less than 5%.<strong></strong></span></p><p class="MDPI17abstract"><strong><span lang="EN-US">Results: </span></strong><span lang="EN-US">The results showed that visualization estrus (goods), </span><span lang="EN-US">t</span><span lang="EN-US">he percentage of estrus (100%), the onset of estrus (51.6 h- 52.6 h), the percentage of pregnancy (100%), birth percentage of kids (100%) Kacang goats </span><span lang="EN-US">better on the use of double PGF<sub>2</sub>α and a combination of GnRH and PGF<sub>2</sub>α than the use combination progesterone with PGF<sub>2</sub>α but </span><span lang="EN-US">the duration of estrus, twins and the kidding rate no difference between treatments.<strong></strong></span></p><p><strong><span lang="EN-US">Conclusions: </span></strong><span lang="EN-US">Synchronization method using a combination of GnRH with PGF</span><sub><span lang="EN-US">2</span></sub><span lang="EN-US">α</span><span lang="EN-US"> and double PGF</span><sub><span lang="EN-US">2</span></sub><span lang="EN-US">α</span><span lang="EN-US"> produces estrus responses, pregnancy rate and birth rates that are higher than the combination Progesterone with PGF</span><sub><span lang="EN-US">2</span></sub><span lang="EN-US">α</span><span lang="EN-US"> synchronization method.</span></p>