用替代估计模型对不同代的布尔山羊和中高地山羊进行增长曲线分析
Zeleke Tesema1, Alemu Kefale2, Belay Deribe2
1Debre Birhan Agricultural Research Center, Debre Birhan, Ethiopia.
PloS one
|November 10, 2023
概括
布罗迪函数最好地描述布尔山羊 x 中高地山羊的生长曲线,预测成熟体重和成熟率,以实现有利可图的农业. 这种分析有助于优化管理和育种策略.
科学领域:
- 动物科学动物科学
- 量化遗传学 量化遗传学
- 生物数学 是一个生物数学.
背景情况:
- 增长曲线分析对于优化动物管理,确定营养需求和预测生产率至关重要.
- 了解博尔山羊和中高地山羊的生长模式对于提高育种和养殖效率至关重要.
研究的目的:
- 为了确定最适合的非线性函数来模拟不同世代的山羊从出生到年龄的成长.
- 评估布尔山羊和中高地山羊的各种生长模型的预测准确性和灵活性.
主要方法:
- 评估了七种非线性增长模型 (Gompertz,Logistic,Brody,Von Bertalanffy,单分子,负指数,理查兹).
- 使用根平均平方误差 (RMSE),贝叶斯信息标准 (BIC),调整的确定系数 (AdjR2) 和Akaike的信息标准 (AIC) 进行了评估.
- 在SAS中使用非线性回归程序进行数据分析.
主要成果:
- 布罗迪函数是最适合F1,F2和雄性山羊生长的.
- 理查兹模型,其次是布罗迪模型,最好地描述了F3和雌性山羊的生长.
- 随着子代的增加,异位体重下降,男性的体重高于女性. 成熟率在两性之间是相似的.
结论:
- 建议使用布罗迪函数来预测博尔山羊与中高地山羊的成熟体重,成熟率和生长率.
- 这些发现支持使用布罗迪函数来开发有效的山羊养殖育种和管理策略.
- 模型选择因世代和性别而异,突出表现了山羊生长动态的复杂性.
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