良种的

It was found, in one livestock elite station of Xuzhou, the ejaculum quality,eros and performance of some adult bulls were poor in recent years.

近几来，徐州市某家畜良站饲养的部分成公牛表现常精液品质不良，欲差，生产能力低下。

Based on the years experiences, the author summarized and provided the main criterion and technique measures for improved cytoplasmic male sterile monogerm hybrid sugarbeet of seed reproduction.

摘要总结了多不育甜单胚型的良繁育实践经验，对该类品的良繁育主要原则和技术措施进行探讨。