蒸发式冷却系统对在热带气候下哺乳母猪的表现的影响
Gleyson Araújo Dos Santos1, Lígia Vanessa Leandro Gomes1, Maria do Carmo de Oliveira1
1Department of Animal Science, Universidade Federal Rural do Semi-Árido, Mossoró, Rio Grande do Norte, Brazil.
Tropical animal health and production
|January 23, 2024
概括
与传统系统 (CS) 相比,蒸发式冷却系统 (ECS) 改善了母猪的舒适性和小猪的生长. 乳清增强牛奶产量,减少母猪生理压力,从而提高整体 litter 性能.
科学领域:
- 动物科学动物科学
- 环境生理学环境生理学
- 猪生产 生产 猪生产
背景情况:
- 高温会对母猪福利和小猪的表现产生负面影响.
- 有效的热管理对于优化猪业的繁殖效率至关重要.
研究的目的:
- 评估蒸发式冷却系统 (ECS) 与传统系统 (CS) 对母猪和子性能的影响.
- 评估不同热环境下的母猪和小猪的生理和行为反应.
- 分析ECS和CS的母猪的牛奶产量和质量.
主要方法:
- 在随机设计中,50头母猪及其幼被分配到ECS或CS中.
- 测量了种子和子的重量,料摄入量,以及牛奶产量/成分.
- 对母猪和幼的生理参数 (呼吸速率,温度) 和行为进行了监测.
- 两个系统的环境条件 (温度,湿度) 都被记录下来.
主要成果:
- 蒸发式冷却系统 (ECS) 显著改善了小猪平均体重,断奶体重和每日牛奶产量.
- 在ECS中的母猪表现出降低了生理压力指标,增加了不活动的警觉和母乳养行为.
- 猪仔在ECS中显示,昼夜食间隔的变化减少了.
- 牛奶的营养质量在两个热环境中保持一致.
结论:
- 蒸发式冷却系统通过减轻热应激来提高母猪的舒适性和福利.
- 通过改善母猪奶产量和小猪福利,ECS对子表现产生了积极的影响.
- 建议在猪产科单位实施ECS,以提高生产力和动物福利.
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