贵州黑山羊泌乳量的研究

摘要

In this study, ten postpartum Guizhou Black Goats were selected to record the weight changes of their lambs after sucking the breast milk every 5 days. The intake breast milk of the lambs was considered as the milk yield of the female goats. The results showed that the average daily milk yield of the Guizhou Black Goats during postpartum 60 days was (464 ±22) g; the lactation peak appeared in postpartum 30th day;during postpartum 30 days, the milk yield of the Guizhou Black Goats was slowly increased, but it began to gradually and slowly decreased with the extension of postpartum time;after the postpartum 45 th day, the daily milk yield was relatively rapidly reduced.%选择分娩贵州黑山羊母羊10只，每5 d记录羔羊吮吸母乳后的体重变化，计为母羊的泌乳量。通过试验研究发现：贵州黑山羊产后60 d日均泌乳量为（464±22）g；泌乳高峰期出现在产后30 d，产后0～30 d泌乳量缓慢上升，随后泌乳量开始逐渐缓慢下降，在泌乳45 d后，日泌乳量下降速度较快。