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Comparison of reproductive performance of Bali cows using different duration laser punctures and PGF2? hormone

Yendraliza^1*, Rahmi Febriyanti¹, Widia Setuti¹, Zumarni¹, Oksana¹, Rosmaina¹, Sudirman M Johan², Chairusyuhur Arman³

¹Faculty of Agriculture and Animal Science, Universitas Islam Negeri Sultan Syarif Kasim Riau, Jalan HR Soebrantas KM 15 Panam Pekanbaru, Riau, Indonesia.
²Faculty of Syariah dan Ilmu Hukum, Universitas Islam Negeri Sultan Syarif Kasim Riau, Jalan HR Soebrantas KM 15 Panam Pekanbaru, Riau, Indonesia.
³Faculty of Animal Science, Mataram University, Jalan Majapahit 62 Mataram, West Nusa Tenggara, Indonesia.

Malaysian J. Anim. Sci. 2019 22(2): 1-9

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A study was conducted to determine the estrus response and pregnancy percentage of Bali cows after different laser-puncture treatments with PGF2? hormone. One hundred fifty Bali cows that had previously been pregnant were used in this study. They were divided into three groups based on body condition score of 3, 3.5, and 4, into 3 treatments: 1) injected with the PGF2? hormone, 2) laser puncture for 5 sec and 3) laser puncture for 10 sec. The laser used was a soft Helium-Neon 50 Hz of 220 volt and 50 watt which obtained 20 MW of power. The parameters measured were estrus percentage, estrus duration, onset of estrus, estrus intensity, total pregnancy, non-return rate, and services per conception (S/C). The data were collected for four days after the experiment and analyzed using Chi-Square Independence Test. The results revealed that the estrus response and pregnancy percentage of the Bali cows after synchronization with PGF2? hormone (Treatment 1, Control) and laser-puncture for 5 sec and 10 sec were significantly different (p<0.05). The use of laser-puncture in Bali cows had increased pregnancy rate from 60 to 80%, with S/C of 1.6 -2.0, decreased non return rate 20 to 40%, with estrus intensity of 1.6 to 2.0. The use of 5-sec laser puncture has produced the similar reproductive performance as synchronizing the cows with PGF2? hormone.