Characteristics of estrus and pregnancy rate following estrus induction by laserpuncture treatment and PGF2α injection in Etawah Crossbred Does Suyadi Suyadi, Gita Dwi Widyastuti and Tri Eko Susilorini
Faculty of Animal Science, Universitas Brawijaya, Jl. Veteran, Malang, Indonesia 65145 E-mail : suyadi[at]ub.ac.id
Abstract
Induction of low voltage laser beam on the reproductive accupoints in un-estrus post-partum symptom animal is believed could improve reproductive activity. This study was conducted to evaluate the estrus characteristics and pregnancy rate of Etawah Crossbred does following estrus induction by laserpuncture exposure at the reproductive accupoints or PGF2α injection treatments. Thirty mature Etawah Crossbred does were exposed by laser beam on 17 reproductive accupoints for three consecutive days, once a day (Group1). The other 10 does was injected by PGF2α (Group 2), while the remain 10 does were treated with combination of laserpuncture and PGF2α injection (Group 3). The number of does showing estrus was higher (P<0.05) when injected with PGF2α compared to without any PGF2α injection (50%, 80% and 100%, for Group 1, 2 and 3, respectively). The shorter onset of estrus period from the treatment was in Group 1 (70,0 ± 4,2 h) compared to other groups (Group 2: 133,6 ± 114,6 h and Group 2: 148,6 ± 58,3). The duration of estrus was not different among groups (35,3 ± 6,5 h, 40,6 ± 5,5 h and 36,6 ± 7,3 h, for the respective groups), while the pregnancy rate (P<0.05) were 50%, 70% and 80%, for Group 1, 2 and 3, respectively. In conclusion, exposure of laser puncture on the reproductive accupoints of does was possible to induce estrus in unestrus post-partum symptom and the combination laser-exposure and PGF2α injection increased the number of animal showing estrus and pregnancy rate.
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