探索平等对代谢特征,表现和后代生长的影响Bos indicus肉牛牛
Isabela I Rodrigues1, Matheus L Ferreira2, Luciana N Rennó1
1Departament of Animal Science, Universidade Federal de Viçosa, Viçosa 36570, MG, Brazil.
Veterinary sciences
|December 31, 2025
概括
多夫妇尼罗尔奶牛在哺乳期表现出较少的代谢性代谢特征,并且在哺乳期表现更好,而不是原夫妇奶牛. 原生母牛在哺乳期早期强烈地调动身体储备,但在晚些时候显示出改善的营养状况.
科学领域:
- 动物科学动物科学
- 生殖生物学 生殖生物学
- 代谢生理学 代谢生理学
背景情况:
- 同等性显著影响肉牛的生理和代谢适应.
- 了解这些差异对于优化群体管理和生产率至关重要.
研究的目的:
- 为了评估平价性 (原生与多生) 如何影响在放牧的Nellore奶牛中的代谢特征,表现和后代生长.
- 探索代谢特征,牛奶产量和性能指标之间的关联.
主要方法:
- 34只怀孕的内罗尔母牛 (原生母牛和多生母牛) 在 *Uruchloa decumbens* 牧场上放牧.
- 体重,身体状况得分,血液样本 (代谢概况) 和乳产量在整个妊娠和哺乳期都被收集.
- 用皮尔森相关性分析来评估变量之间的相互关系.
主要成果:
- 原生母牛的葡萄糖,NEFA和IGF-1度发生变化,总蛋白质,白蛋白和球蛋白降低,血清尿素N.高.
- 与多母牛相比,初母牛的牛奶产量,小牛出生体重和断奶体重都较低.
- 多种母牛在周围到哺乳期期间表现出较少的代谢性代谢特征.
结论:
- 均等性影响了内罗尔牛的新陈代谢状态,牛奶产量和小牛生长.
- 在早期哺乳期,原生母牛表现出更大的代谢压力和身体储备动员.
- 多牛在整个研究期间表现出更有利的代谢特征和更好的整体表现.
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