不同胎次放牧伊犁马产乳性能及乳品质相关性研究  

The Correlation Study of Mare's Milk Performance and Milk Quality of Different Parity Grazing Yili Horses

作　　者：刘志安[1] 刘武军[1] 孟军[1] 王建文[1] 刘运飞[1] 李海 周健 姚新奎[1] 郭海娟[1] 李敏[1] 

机构地区：[1]新疆农业大学动物科学学院,乌鲁木齐830052 [2]新疆昭苏县畜牧局,新疆昭苏835612

出　　处：《新疆农业科学》2015年第2期360-365,共6页Xinjiang Agricultural Sciences

基　　金：农业部公益性行业专项"马驴产业技术研究与试验示范项目"(201003075);国家新疆维吾尔自治区科技支撑项目"优质运动马培育生产关键技术研究与集成示范"(201031102);国家科技支撑项目"优质运动马培育生产关键技术研究与集成示范"(2011BAD28 B06)

摘　　要：【目的】研究不同胎次放牧伊犁马日产奶量及鲜马乳中营养成分的变化规律,探索自由放牧条件下伊犁马的泌乳性能,为开发利用马乳产品提供数据参考。【方法】利用SPSS18.0软件,分析不同胎次放牧伊犁马产奶量及营养成分的差异性,通过逐步回归分析建立回归方程。【结果】在第7胎次的营养品质较低(乳脂1.3%、乳蛋白1.66%、乳糖5.86%、总固形物9.3%),但产奶量较高(12.49L);第4胎次马奶的营养品质较高(乳脂1.35%、乳蛋白1.82%、乳糖6.13%、总固形物9.77%);建立了日产奶量与乳蛋白和总固形物与乳脂、乳蛋白、乳糖的回归模型,即Y产奶量=840.157-106.073X乳蛋白,Y总固形物=-0.147+1.187X乳糖+0.803X乳脂+0.864X乳蛋白。【结论】不同胎次放牧伊犁马的日产奶量及鲜马乳中乳糖、乳蛋白、乳脂和总固形物含量均呈显著或极显著差异性,产奶量与乳成分和各乳成分之间均存在一定的相关性。【Objective】The project aims to explore the lactation performance and provide reference basis for the development and utilization of the mare＇s milk products by mastering the changes of daily milk yield and composition of nutrition in Yili horses with different parity.【Method】The relation between the milk yield and milk protein and between the solid mater and milk fat,milk protein,milk lactose were analyzed by means of software SPSS18. 0,and the regression equation was constructed using stepwise regression analysis. 【Result】The nutrition in seventh- parity was lower than that of the others（ milk fat 1. 3%,milk protein 1. 66%,milk lactose 5. 86%,the solid mater 9. 3%）,but the mare＇s milk yield was the highest（12. 49L）. The nutrition in fourth- parity was higher than that of the others（ milk fat 1. 35%,milk protein 1. 82%,milk lactose 6. 13%,and thhe solid mater was 9. 77%）. The regression model between the milk yield and milk protein and betweenthe solid mater and milk fat,milk protein,milk lactose were built,Ymilk yield= 840. 157- 106. 073 Xmilk protein,Ysolid mater=- 0. 147 ＋ 1. 187 Xmilk lactose＋ 0. 803 Xmilk fat＋ 0. 864 Xmilk protein.【Conclusion】It showed that the parity had significant effects on the nutrition and mare＇s milk yield（ P〈0. 01）,and there was a certain correlation between milk yield and milk composition and milk composition by analyzing of the correlation between different indexes.

关 键 词：放牧伊犁马 胎次 泌乳性能 乳品质 相关性 逐步回归分析 

分 类 号：S858.26[农业科学—临床兽医学]