1、The extenders of frozen semen and the glycerol contents were studied by the authors when they produced frozen semen pellets of small-tail sheep.
5、"In livestock, deep-frozen semen from a male animal can be stored for long periods without losing its fertility, thus allowing a single Bull to sire as many as 10,000 calves a year. "
4、In order to improve the growth performance of Dabieshan yellow cattle, the frozen semen of Australian short cattle was used to improve the Dabieshan yellow cattle in Macheng City of Hubei Province.
6、It has been proved by practice that measures such as nutrition regulation, uterus cleaning and so on, are able to increase the pregnancy rate of local cattle insemination with frozen semen.
3、Meantime, the concrete measures were elicited for bull selection, making and preservation of frozen semen, mating methods and frozen embryo pool establishment etc.
2、Effect of different concentrations of caffeine and glutathione in the basic frozen semen dilution on quality of frozen dog sperm