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.

近几年来，徐州市某家畜种站饲养的部分成年公牛表现常年精液品质，欲差，生能力低。

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.

总结了多年雄育甜菜单胚型杂交种的种繁育实践经验，对该类品种的种繁育主原则和技术措施进行探讨。