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当前位置: 首页 > 文章 > 新疆伊犁马泌乳曲线影响因素的研究 新疆农业科学 2016,53 (9) 1743-1750
Position: Home > Articles > Effects of Different Feed Models on Milk Production of Yili Horse Xinjiang Agricultural Sciences 2016,53 (9) 1743-1750

新疆伊犁马泌乳曲线影响因素的研究

作  者：
高程程;刘玲玲;何美升;王军;阿克玛热·阿乐;赵茜;刘武军
单  位：
新疆农业大学动物科学学院
关键词：
伊犁马;日产奶量;泌乳曲线;模型参数
摘  要：
【目的】通过拟合伊犁母马的最佳泌乳曲线来预测伊犁母马产奶能力。【方法】选取6~7岁、处于泌乳中期的伊犁母马60匹为研究对象,利用4种模型(高斯模型、Nelder逆多项式模型、立方模型和六次多项式模型)和3种日间隔方式(间隔0、10、30 d),对第3、4胎次的伊犁母马的泌乳曲线进行拟合,分析不同模型、日间隔和胎次3个因素对泌乳曲线拟合度及其参数值的影响。【结果】4种模型泌乳曲线拟合度变化范围为0.077 7~0.827 0,不同模型极显著影响参数b值、c值、拟合度R2(P<0.01),显著影响参数a值(P<0.05),日间隔、胎次水平对参数a值、b值、c值和拟合度均没有显著性影响(P>0.05)。六次多项式模型拟合度最高,逆多项式回归模型拟合度最低,立方模型拟合曲线更接近实际产奶。【结论】该马场中第3胎次伊犁马间隔0 d的产奶量的拟合效果较好,其中立方模型拟合曲线的泌乳潜力较高,达到泌乳高峰速度较慢,从泌乳高峰下降速度较慢,科学评定伊犁母马的泌乳能力,确定立方模型为第3、4胎次伊犁马最佳泌乳曲线模型,为伊犁马的产奶性能的科学选育提供前期基础。
译  名：
Effects of Different Feed Models on Milk Production of Yili Horse
作  者：
GAO Cheng-cheng;LIU Ling-ling;HE Mei-sheng;WANG Jun;Akemare·Ale;ZHAO Xi;LIU Wu-jun;College of Animal Science,Xinjiang Agricultural University;
关键词：
Yili horse;;milk yield;;lactation curve;;model parameters
摘  要：
【Objective】The research was designed to predict milking capacity by fitting the best lactation curves.【Method】60 mares of Yili horses were selected as samples from Zhaosu Stud Farm in Yili,Xinjiang.The lactation curve was fitted by 4 mathematical models( including the Gaussian model,Nelder inverse quadratic polynomial model,Cubic model and Six polynomial model) and 3 days interval( including 0 day interval,10 days interval,30 days interval) on 3-4 parities' Yili horses. The effects of models,day interval and parity on fitness and parameter of lactation curve were analyzed by ANOVA.【Result】The results showed that the fitness of 4 lactation curve models ranged from 0. 077,7 to 0. 827,0. The models showed significant effect on the fitness,the b value,the c value of lactation curve at P < 0. 01,on the a value of lactation curve at P <0. 05. The day interval and parity showed no significant effect on the fitness,the a value,the b value,the c value of lactation curve. By the fitness of lactation curve,the sixth polynomial model was the largest,and the Nelder inverse quadratic polynomial model was the least,the cubic model was better near to the real milk production.【Conclusion】The study found the lactation curves of 0 day interval on third parity Yili horse is betterr,and among them,the lactation potential of the cubic model fitting curve was higher,but the rising speed of the peak of lactation was lower,so was the dropping speed. The cubic model is more reliable to evaluate the milking capacity of Yili horse. So,the cubic model is the best model to curve lactation,which provided an initial basis for the later scientific breeding of Yili horses milk performance.

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