新疆东疆地区新疆驴和南疆地区新疆驴泌乳规律差异比较  

Comparative analysis of lactation patterns of Xinjiang Donkey in EasternXinjiang Region and Xinjiang Donkey in Southern Xinjiang Region

作　　者：张国威 陈斌 刘武军[1] ZHANG Guowei;CHEN Bin;LIU Wujun(College of Animal Science,Xinjiang Agricultural University,Urumqi 830052,China)

机构地区：[1]新疆农业大学动物科学学院,乌鲁木齐830052

出　　处：《新疆农业科学》2025年第2期484-493,共10页Xinjiang Agricultural Sciences

基　　金：新疆驴新类型选育关键技术研究(2020B01002-1);驴乳用类型综合选育技术示范(2022NC103);中国农村专业技术协会新疆伊吾驴产业科技小院。

摘　　要：【目的】研究新疆东疆地区新疆驴和南疆地区新疆驴产奶量及泌乳规律的差异。【方法】选取65头东疆地区(半舍饲半放牧)新疆驴;70头南疆地区(舍饲)新疆驴;通过逆多项式模型、立方模型、六次多项式模型拟合泌乳曲线,探究东疆地区新疆驴和南疆地区新疆驴泌乳规律差异。利用体尺性状与月均产奶量建立最优回归模型,作为其半放牧半舍饲条件下的泌乳水平预测模型。【结果】六次多项式模型对新疆驴泌乳曲线拟合效果最优,东疆地区新疆驴泌乳高峰更长,日均产奶量及峰值产奶量东疆地区新疆驴均优于南疆地区新疆驴。东疆地区新疆驴体尺与产奶量的回归模型可作为半舍饲半放牧条件下泌乳水平预测模型。【结论】新疆东疆地区半舍饲半放牧新疆驴泌乳性优于南疆地区(舍饲)新疆驴。【Objective】To study the difference of milk yield and lactation regularity of Comparative analysis of lactation patterns of Xinjiang Donkey in Eastern Xinjiang Region and Xinjiang Donkey in Southern Xinjiang Region.【Methods】In this study,65 healthy Xinjiang Donkey in Eastern Xinjiang Region were selected from half house feeding and half grazing.70 farmed Xinjiang Donkey in Southorn Xinjiang whose lactation curve was fitted by inverse polynomial model,cubic model and sixth-degree polynomial model to explore the difference of lactation regularity of donkeys in different areas of Xinjiang.The optimal regression model was established based on body size traits and average monthly milk yield,which was used as the prediction model of milk level under semi-grazing and semi-house feeding conditions.【Results】The results showed that the sixth-degree polynomial model had the best fitting effect on the lactation curve of Xinjiang donkeys.The lactation peak was longer in eastern Xinjiang,and the average daily milk yield and peak milk yield of Xinjiang Donkey in Eastern Xinjiang Region were better than that of Xinjiang Donkey in Southorn Xinjiang.The regression model of body size and milk yield in eastern Xinjiang could be used as a prediction model of lactation level under semi-grazing and semi-house feeding condition【Conclusion】The lactation performance of semi-herding and semi-herding Xinjiang Donkey in Eastern Xinjiang Region is better than that of the donkeys in southern Xinjiang.

关 键 词：东疆地区新疆驴 南疆地区新疆驴 泌乳规律 饲养管理 体尺 

分 类 号：S822[农业科学—畜牧学]