G. Ciptadi, A. Budiarto, M.N. Ihsan, U. Wisaptiningsih, S. Wahjuningsih
Artificial inseminasion (AI) of crossbreed goats was initiated to introduce better and new genetic at the small holder farmer level by using frozen semen. In Indonesia, AI using Boer goat freezing semen have been introduce to overcome reproductive inefficiency and accelerate genetic gain in local goat which animals were reared under field condition on small holder farm. This research was performed to compare of the success rate of AI with frozen semen at the level of small holder farmers versus a researh farm. Mature female local goat (PE and Kacang goat) grouped in two different environment with the total of 38 head at the researh farm and 18 in a small holder farm. Animals were synchronized with progesterone double injection of PGF2α. All the does were inseminated at the fixed time of 43-45 hrs after second injection of PGF2α at 12 hrs interval. Pregnancy of the does test was determined by observing he animal didnot show estrus between 18-21 days post insemination for at least 2 estrus cycle (Non Return Rate). Pregnancy was also diagnosted using tl paplation method. Results showed that 80,0% of does showed estrus signs and 70% of them were detected between 24 - 42 hrs after PGF2α injection. An overall 57.85% pregnancy rate was recorded. Higher pregnancy rate (69.54%) was obtained in does inseminated in research farm compare to 53.57% at small holder farm. Sex ratio of the 125 offspring is 53%. All variable observed of reproductive performance had a significant effect (P< 0.05) except of PE vs Boer crossbreed. Results were encouraging in that this is one of the first report of kidding through AI in estrus induced of local Indonesian goats then cross to Boer goat in both research farm versus a small holder farm. Moreover, it indicated the feasibility of using synchronization and fixed time AI to enhance the reproductive efficiency and genetic quality in local goat which crossed with Boer goat. © 2014 AENSI PUBLISHER All rights reserved.
Brawijaya University, Malang, Indonesia
