摘要
试验选用 30头分娩后 18d的经产母猪 ,随机分为 3组 ,中药方 1和方 2组为试验组 ,对照组饲喂基础日粮 ,试验期为 15d ,日平均温度为 2 7 6～ 33 7℃ ,相对湿度为 2 2 %～ 96 %。结果表明 ,中药添加剂可有效调节高温下产后母猪的繁殖性能。试验组母猪与对照组相比 :①返情率均降低了 2 0 % ;②断乳至再发情的时间提前 ,其中方 1组提前了 18% (p <0 0 5 ) ,方 2组提前了 2 7% (P <0 0 1) ;③产仔头数提高 ,其中方 1组提高了 11% (P <0 0 5 ) ,方 2组提高了 2 2 % (P <0 0 1)。
sows, around 18 day postpartum were divided to three groups Basal diet (B) (control) ;B + Chinese medicine additives 1; B + Chinese medicine additives 2; In the 15 days the daily ambient temperature are around 27 6～33 7℃ The results showed that Chinese medicine additives regulate endocrine and reproduction performance under high temperature Comparing with the control:The rate of returning to service of the two trial group were all declined 20%; The time between weaning to re estrus were shortened 18% (p<0 05) and 27%(p<0 01) respectively The piglet number of reproductive were increased 11%(p<0 05)and 22%(p<0 01)respectively
出处
《北京农学院学报》
2003年第1期29-32,共4页
Journal of Beijing University of Agriculture
基金
北京市科委资助课题 ( 95 44 14 80 0 )
