<![CDATA[This research aimed to identify the effect of the length of thawing time on the quality of Bali cattle postthaw semen and to investigate the resulting pregnancy rate. This research was conducted at Wanasaba Village, specifically Tanaq Mira Village, Wanasaba District, East Lombok Regency. Five samples of Bali cattle semen were collected for insemination from each of three different farmer groups. The semen sample from the remaining frozen semen inseminated by the inseminator was used in this research. Tanaq Mira Village's inseminator performed thawing during the trip from the artificial insemination (AI) station to the farmer group's location. This research observed the microscopic quality of the postthaw frozen semen covering motility, viability, and abnormality. Moreover, the pregnancy rate on AI acceptors using the non return rate (NRR) parameter or the number of female parents who returned to estrus after being inseminated were observed. The observation was conducted on three farmer groups with different distances and lengths of thawing time. Each farmer group was observed five times. The collected data were then analysed by using one-way analysis of variance(ANOVA). The research indicated that the distance of the farmer group’s location significantly affected (P<0,01) the sperm motility and viability. However, it did not significantly affect (P>0,05) the sperm abnormalities. The Sapeng farmer group had the highest NRR, as much as 80%. According to the NRR score, it can be concluded that the thawing process using the thermos within less than 10 minutes resulted in the best yield.]]>
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