对非线性模型进行比较,以描述Lori-Bakhtiari羊的生长表现
Saheb Foroutanifar1, Majid Khaldari2
1Department of Animal Science, College of Agriculture and Natural Resources, Razi University, Kermanshah, Iran.
Veterinary medicine and science
|July 23, 2024
概括
戈珀茨和摩根-默塞尔-弗洛丁 (MMF) 模型最好地描述了洛里-巴赫蒂亚里绵羊的生长. 单独分析雄羊和雌羊的生长,对于准确的特征确定和改进养策略至关重要.
科学领域:
- 动物科学动物科学
- 量化遗传学 量化遗传学
- 畜牧业生产 畜牧业生产
背景情况:
- 在动物科学中,生长速度和成熟体重等生长特征在经济上具有重要意义.
- 了解这些特征对于优化畜牧生产和管理至关重要.
研究的目的:
- 评估和比较六种非线性数学模型来描述Lori-Bakhtiari羊的生长.
- 为了确定最适合的模型,准确地表示绵羊的生长模式.
主要方法:
- 收集了85只Lori-Bakhtiari羔羊 (41只雄羊,44只母羊) 的体重数据,从出生到140天.
- 应用了六种非线性增长模型:负指数,布罗迪,戈珀茨,物流,摩根-默塞尔-弗洛丁 (MMF) 和韦布尔.
- 分析了每个模型与收集的体重和年龄数据的匹配程度.
主要成果:
- 摩根-默瑟-弗洛丁 (MMF) 和戈珀茨模型证明最适合羊的体重数据.
- 负指数模型显示了测试模型中最差的匹配.
- 男性羔羊比雌性具有更高的非对称体重,性别之间的生长模式和速度不同.
结论:
- 雄羊和雌羊之间生长模式的显著差异需要进行单独的数据分析.
- 对于育种者来说,Gompertz模型是推的,以准确地确定Lori-Bakhtiari雄羊和雌羊的生长特征.
- 根据个体生长率量身定制的单独养策略可能会提高整体生长性能.
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