摘要
选取遗传基础相似、体重相当来自9窝母猪的48头杜长大仔猪为研究对象。随机平均分为2组,分别于23日龄和28日龄断奶,各组分别在断奶当天,断奶后3 d、7 d、14 d宰杀取样。测定各组在断奶后2周内的生产性能以及空肠内容物和胰腺消化酶的活性。结果表明:28日龄断奶的仔猪平均日增重、日平均采食量均显著高于23日龄断奶的仔猪。断奶后仔猪空肠消化酶均有所下降,其中28日龄断奶的仔猪所受影响相对较小。
Forty-eight piglets were selected from 9 litters and randomly divided into two groups： weanled on the 23^rd and 28^th days by using crossbred （Duroc×LandracexLarge White） piglets. Every group takes the samples at 0, 3, 7 and 14 day, respectively after weanling. The results showed that weanling on the different day have prominent influence on production performance of the piglets. The ADG and ADFI of piglet weaning on the 28^th day were higher than that of piglet weaning on the 23th day notably. In addition, various digestive enzyme activities in digestive ferment of piglets weanled on the 28th day were higher than the 23rd of the same period age piglets in 2 weeks after weanling.
出处
《畜牧与兽医》
北大核心
2009年第6期27-29,共3页
Animal Husbandry & Veterinary Medicine
基金
教育部高校博士点基金(20070307047)
关键词
断奶日龄
生产性能
消化酶
断奶仔猪
weanling day
performance
digestive enzyme
wean piglet
