二元回交母猪的饲养管理策略

非洲猪瘟疫情发生后,母猪种源急剧减少,很多猪场将三元母猪作为种用,生猪产能得到恢复,但三元母猪留作种用的生产效率与二元母猪相比低20%左右。随着非洲猪瘟疫情常态化,猪场加强了生物安全体系建设,提升生产效率成为猪场的主要目标。二元回交母猪数量正在逐步上升,二元母猪取代生产性能差的三元母猪也将成为一种趋势。本文主要综述了二元回交母猪的特点和营养、管理方案,以期为猪场提供参考。

Nutrition and Management Strategy of Two-breed Rotaterminal Cross Sows

After the outbreak of African swine fever (ASF), the number of breeding sows were decreased sharply. Many farms used three-breed cross (DLY) sows as breeding, and the pig production capacity was restored, but the production efficiency of DLY sows was about 20% lower than two-breed cross (LY) sows. With the normalization of AFS, farms have strengthened the construction of biosafety system, and improving the production efficiency has become the main goal of farms. The number of two-breed rotaterminal cross sows are gradually increasing, replacing DLY sows with poor production performance is becoming a trend. This paper mainly reviewed the characteristics, nutrition and management of two-breed rotaterminal cross sows, in order to provide reference for farms.