Induction of estrus by laser puncture exposure in Etawah Crossbred Does with the anestrus post-partum problems at different parities

Abstract

This study was conducted to induce estrus by laser puncture exposure in anestrus post-partum Etawah Crossbred goats, at different stages of parity. In total 38 does at parity 1 to 6 were treated by laser puncture in the reproductive acupuncture spots. The exposure of laser puncture was 10 sec per spot, for three consecutive days, on 17 reproductive acupuncture spots located at 1.5 cm lateral columna and lumbal vertebrae L1 to L7 and at vulva. Estrus was observed from day 1 until 11 days post exposure. Variable observed were exhibition, length and onset of estrus. As the result 76.32% of does were exhibit estrus. According to parity, percentage of estrus does was increase form parity 1 to 3, and slightly decrease form parity 4 to 6. Onset estrus was around 2 – 6 h in parity 2 to 3, while longer estrus was found in parity 4 to 6 around 6 – 13. Estrus length in parity 1 and 2 was 55 h, and it is shorter compared to parity 3 to 6 (>80 h). It was concluded that laser puncture able to induce estrus and cccording to parity, acceptable estrus was showed at parity 1 to 3 than 4 to 6.