Abstract: In order to study the effects of feeding suckling ewes with fresh forage rape,weight gain and serum parameters in lactating ewes and lambs of Yiling goats were detected.The paired experimental design was adopted according to body weight,lambing time,lambing number,gender and the birth weight of lambs.Fourteen lactating ewes with twin lambs,six lactating ewes with single lamb,and their corresponding 34 lambs were randomly allocated into the experimental group and the control group.The ewes were free to access basic diet while the ewes in the experimental group were given additional 1 kg of fresh forage rape every day.The results showed that there was no difference in feed intake of basic diet between the two groups.The experiment group had 42.81% more litter weight gain than the control group(P<0.05),and its ewe weight gain was 2.75 times of the control group.All of the ewes and lambs of the experiment group survived during the whole experiment while the fractions of survival ewes and lambs of the control group were 90. 00% and 76.47%,respectively.At the end of the experiment,the total serum cholesterol was in normal range of goat,however,cholesterol content of the experimental ewes was higher than that of the control group,and the serum urea nitrogen content of lambs in the experimental group was significantly lower than that of the control group(P<0.05).The economic benefit of the experimental group was 2.12 times of the control group.In conclusion,feeding lactating ewes with fresh forage rape can be beneficial to lambs weight gain and weight maintaining of ewes in goat.

Key words: Forage rape, Yiling goats, Lactation, Weight, Serum parameters

摘要： 为研究饲料油菜鲜饲哺乳母羊的效果，测定饲料油菜鲜饲夷陵山羊对哺乳母羊和羔羊体质量增长效果和血清生化指标的影响。根据夷陵山羊的体质量、产羔时间、产羔数、羔羊性别、羔羊出生质量一致的原则，逐一配对选取14只产双羔和6只产单羔的哺乳母羊及其34只羔羊为研究对象，将每只母羊及其羔羊随机分为试验组和对照组，自由采食基础日粮，试验组每天额外补饲1 kg新鲜饲料油菜。结果表明，额外补饲1 kg新鲜饲料油菜不会降低哺乳母羊的采食量，试验组每窝羔羊体质量的增长量显著高于对照组42.81%（P<0.05），试验组母羊体质量的增加量是对照组的2.75倍；试验组母羊和羔羊全部存活，而对照组母羊和羔羊存活率分别为90.00%和76.47%；试验结束时，试验组和对照组母羊血清总胆固醇含量均在正常范围内，但试验组母羊血清总胆固醇含量显著高于对照组（P<0.05），试验组羔羊的血清尿素氮的含量显著低于对照组（P<0.05）；试验组的经济效益为对照组的2.12倍。综上，饲料油菜作为青绿饲料饲喂哺乳母羊有助于羔羊体质量的增长和维持母羊体质量。

关键词: