不同输精参数对半番鸭受精率的影响

以公番鸭为父本，白改鸭为母本，研究不同输精参数（输精深度、输精量、输精时间和输精间隔）对半番鸭受精率的影响。结果表明，输精深度为6 cm时的受精率显著高于输精深度为3 cm的受精率。其中输精深度为3 cm时，采用不同输精量得出的平均受精率为71.01%；输精深度为6 cm时，采用不同输精量得出的平均受精率为76.43%；不同输精量对受精率无显著影响。输精时间对受精率无显著影响，上午输精与下午输精的平均受精率分别为71.63%和70.46%；输精间隔为2 d和4 d时的受精率极显著高于输精间隔为6 d的受精率，而输精间隔为2 d和4 d的受精率之间没有显著差异。本研究结果为半番鸭人工授精提供了理论依据和参考价值。

Effect of Different Insemination Parameters on Fertilization Rate of Mule Duck

Using Muscovy as male parent, white Kaiya duck as female parent, the fertilization rate of mule duck was analyzed by different insemination parameters （insemination depth, insemination amount, insemination time and insemination interval）. The results showed that the fertilization rate of 6 cm depth insemination was significantly higher than that of 3 cm depth insemination. The average fertilization rate of 3 cm depth insemination was 71.01% and the average fertilization rate of 6 cm depth insemination was 76.43% by using different insemination amount, and there was no significant difference among different insemination amount. The fertilization rates were 71.63% and 70.46% respectively in morning and afternoon, showing no significant difference on different insemination time. The fertilization rates of 2 days and 4 days insemination interval were significantly higher than the fertilization rate of 6 days insemination interval, and there was no significant difference between 2 days and 4 days insemination interval. The result of this study provides the theoretical basis and reference value for mule duck artificial insemination.