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利用一般线性模型分析奶牛乳房炎的影响因素

DOI: 10.3321/j.issn:1000-7091.2006.04.029, PP. 114-117

Keywords: 一般线性模型,体细胞数,泌乳月,品种,乳房炎

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Abstract:

为了有效地防控奶牛乳房炎,并掌握其发病原因,试验利用一般线性模型,分析了品种、年龄、胎次、泌乳月和采样季节诸因素对奶牛乳房炎的影响。结果发现:乳用牛比乳肉兼用型牛更容易患乳房炎;随着年龄的增长,奶牛乳房炎的发病率上升;在潮湿多雨的季节里,奶牛更容易得乳房炎;随着泌乳月的加大、胎次的升高乳房炎发病率有上升的趋势。

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