雷州山羊不同母性行为对羔羊体重的影响

Effect of Different Maternal Behavior on Kids Weight of Leizhou Goat

试验旨在研究山羊不同母性行为对羔羊体重的影响,选用健康、产期相近的雷州山羊6只,其中3只初产、3只经产,经产母羊此次产羔均为第3胎。羔羊出生后,连续1周采用24 h监控系统全事件记录母羊的母性行为时长。产羔后利用布条对羔羊进行编号和区分,在出生和生产第10天对羔羊进行称重。结果表明:初产母羊对羔羊的舔舐和嗅闻与经产母羊相比显著升高,而寻找羔羊、待在一起和哺乳时长显著降低;经产羔羊平均日增重较初产羔羊显著升高,且单羔的平均日增重是双羔的1.8倍;母羊不同哺乳时长、平均中断或拒绝哺乳次数均与羔羊日增重及10日龄重存在显著相关性。综上,母羊胎次及产仔数通过影响母羊与羔羊亲子联系的建立及母性行为的表达间接影响羔羊日增重。

The aim of this study was to study the effect of different maternal behaviors of nannies on the weight of kids.Six Leizhou goats with similar perinatal period were selected for the experiment,three of them are primiparity and three are multiparity with the third in kidding.The experiment started when the kid was born.The 24 hour monitoring system was used for 7 consecutive day.The maternal behavior time allocation of nanny was obtained through the whole event record.Cloth strips were used to distinguish the kids.The kids'weight at the age of 10 days and birth weight were recorded.The results showed that the licking and sniffing of kids of the newborn nanny was significantly higher than that of delivered nanny(P<0.05),but the looking for kids and staying together and lactation duration of the delivered nanny was significantly higher than that of newborn nanny(P<0.05).And the average daily gain of the kids of the delivered nanny was significantly higher than that of newborn nanny(P<0.05),the average daily gain of single kid was 1.8 times of that of double kids.There were significant correlation(P<0.05)of the breast-feeding duration and the average number of interrupted or rejected breast-feeding of nannies on the daily weight gain and 10-day weight of kids,respectively.Therefore,parity and litter size affect body weight daily gain of kids through regulating the establishment of parent-child relationship and maternal behaviors.