有机和维生素E用于在赤道气候条件下养的母和母猪
Tiago Silva Andrade1, Pedro Henrique Watanabe1, Ingrid Barbosa de Mendonça1
1Animal Science Department, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil.
Journal of animal physiology and animal nutrition
|September 23, 2023
概括
阿迪亚巴斯冷却改善了母猪生理参数和牛奶产量,远远超过和维生素E补充剂. 然而,有机 (Se) 和维生素E的补充增强了母猪和小猪的抗氧化酶活性.
科学领域:
- 动物科学动物科学
- 动物营养 动物营养
- 生殖生理学 生殖生理学
背景情况:
- 热应激对播种生理学,生殖性能和 litter 结果产生负面影响.
- 有机 (Se) 和维生素E是重要的抗氧化剂,可以减轻热应激效应.
- 了解冷却系统和营养策略之间的相互作用对于优化母猪生产率至关重要.
研究的目的:
- 为了评估有机 (Se) 和维生素E补充剂对未经附加冷却的母猪的影响.
- 为了比较这些效应与有附加冷却且没有补充的母猪.
- 评估对生理参数,生殖性能,牛奶成分, litter性能和抗氧化酶活性的影响.
主要方法:
- 96母猪 (第1和第2平价) 被分配到一个4x2的因数设计中.
- 治疗包括增热冷却 (AC) 或没有AC,有不同程度的有机Se和维生素E补充.
- 测量参数包括生理学数据,牛奶产量, litter 体重和血液中抗氧化酶度 (GSH-Px,SOD).
主要成果:
- 附带冷却 (ACCon) 降低了呼吸速率,直肠温度和身体表面温度.
- 没有冷却 (WAC) 的母猪的牛奶产量和 litter 性能较低 (体重,平均每日增加).
- 有机Se和维生素E补充剂 (WACSeE) 增加了母猪和小猪的抗氧化酶水平 (GSH-Px,SOD),但与AC相比没有改善温度调节或性能.
结论:
- 在赤道条件下,在改善母猪的温度调节和性能方面,热冷却比有机Se和维生素E补充更有效.
- 饮食有机Se和维生素E补充剂可以调节母猪及其小猪的抗氧化状态,即使不需要冷却.
- 联合策略可能是必要的,以充分解决母猪的热应激挑战.
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