营养调控对母猪繁殖性能的影响

Effect of Nutrion Regulation on Sow Reproduction Performance

探讨妊娠母猪妊娠早期日粮中补加一定量的甲基吡啶铬、叶酸、维生素E和维生素A对母猪窝产仔数、初生重、仔猪成活率的影响。试验分为后备母猪和经产母猪两个组,并设相应的对照组,通过试验得出妊娠母猪妊娠早期日粮中补加一定量的甲基吡啶铬、叶酸、维生素E和维生素A,结果显著地提高母猪窝产仔数,平均为29.5%,对初生重和仔猪成活率无显著影响。在母猪妊娠早期的日粮中补加甲基吡啶铬和叶酸等进行营养调控,可提高母猪的繁殖性能。

The study aims to explore the influence on the litter size,piglets birth weight and survival rate by adding a fixed amount of chromium picolinate,folic acid,vitamin E and vitamin A to the diet of pregnant sows in their first trimester.Two experimental groups（prepubertal gilts and multiparity sows） and two control groups were set up in this test.The results showed that litter size improved significantly（average 29.5%） with dietary supplemented chromium picolinate,folic acid,vitamin E and vitamin A to early stage of pregnancy sows,however,the adding above nutrition did not affect birth weight and survival rate.Dietary supplemented chromium picolinate and folic acid et al.to early stage of pregnancy sows improved reproduction performance of sows.