Mussa Ngassa Julius, Boonkum Wuttigrai, Chankitisakul Vibuntita
Rukwa Region Commissioner's Office, Sumbawanga 55180, Rukwa, Tanzania.
Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand.
Vet Sci. 2023 Jan 18;10(2):73. doi: 10.3390/vetsci10020073.
Semen quality traits such as semen volume, sperm motility, sperm concentration, pH, and color are very important, since they can determine the fertility potential of the semen. The objective of this study was to compare the semen quality traits of Thai Native chickens (Pradu Hang Dam and Chee) producing high and low semen volume. Semen was collected from 24 roosters (12 reps) and divided into two groups of roosters producing high semen volume (>0.3 mL) and those producing a low amount of semen (<0.3 mL). Fresh semen quality parameters (semen volume, sperm motility, viability, concentration, and pH) were measured and compared between groups. It was found that semen volume showed a positive correlation with sperm concentration, mass movement, motility, viability, and pH of fresh semen. There was no significant difference in fresh semen parameters between Pradu Hang Dam and Chee roosters with either high or low ejaculate semen, except for sperm concentration. Sperm concentration was significantly higher in Chee compared with Pradu Hang Dam in both high and low ejaculate semen. The semen quality parameters between groups of chickens producing high and low ejaculate semen were significantly different except for sperm viability. In conclusion, it was found that chickens producing high volumes of semen have better sperm quality than those producing a low semen volume. Therefore, these results provide a possible consideration that the amount of semen production among chickens can be used as a tool in selecting Thai native roosters for breeding.
精液质量特征，如精液体积、精子活力、精子浓度、pH值和颜色非常重要，因为它们可以决定精液的生育潜力。本研究的目的是比较产高精液量和低精液量的泰国本地鸡（普拉杜杭丹鸡和契鸡）的精液质量特征。从24只公鸡（12个重复）采集精液，并将其分为两组，一组是产高精液量（>0.3毫升）的公鸡，另一组是产低精液量（<0.3毫升）的公鸡。测量并比较两组之间的新鲜精液质量参数（精液体积、精子活力、存活率、浓度和pH值）。结果发现，精液体积与新鲜精液的精子浓度、总体活动、活力、存活率和pH值呈正相关。普拉杜杭丹鸡和契鸡的高射精量或低射精量公鸡的新鲜精液参数除精子浓度外无显著差异。在高射精量和低射精量的情况下，契鸡的精子浓度均显著高于普拉杜杭丹鸡。除精子存活率外，产高射精量和低射精量的鸡群之间的精液质量参数存在显著差异。总之，发现产高精液量的鸡比产低精液量的鸡具有更好的精子质量。因此，这些结果提供了一个可能的考虑因素，即鸡的精液产量可以作为选择泰国本地种公鸡进行育种的一个工具。
