用Percoll不连续密度梯度分离奶牛精液对控制性别比率的研究

Study on Controlling Sex Ratio by Separating Bulls’Sperm

利用Percoll不连续密度梯度分离的定性精液 ,经在兰州、西安两市11个大中型奶牛场的验证试验 ,结果表明本项目配制的奶牛定性精液对后代性别比例的影响较大 ,其中利用富含Y -精子的1号和2号定性精液所生产的后代雌雄比例分别为36∶64和46 3∶53 7;利用富含X -精子的3号和4号定性精液所生产的后代雌雄比例分别为60 5∶39 5和65 4∶34 6。

Using Percoll discontinuous density gradient to separate bulls' semen. Result: These Qualitative semens have influence on sex ratio, in it no. 1 and 2 seme are riched in Y-sperm and produce progeny with male and female ratio as 36:64 and 46.3:53.7 separately, no. 3 and 4 semens riched in X-sperm and produce progeny with male and female rotio as 60.5:39.5 and 65.4:34.6 separately.‘