冷却的多功能平台来缓解肉的热应激:对性能,尸体和肉质特征的影响
Bassem Khalfi1, Kobe Buyse1,2, Imad Khan3
1Department of Veterinary and Biosciences, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium.
Animals : an open access journal from MDPI
|December 17, 2024
概括
多功能高架平台通过减少热应激死亡率和乳腺肌肉病变来改善肉的福利. 这些丰富的平台并没有对肉的表现,尸体或肉质产生负面影响.
科学领域:
- 动物科学动物科学
- 禽畜科学 禽畜科学 禽畜科学
- 动物福利 动物福利
背景情况:
- 环境的丰富,如高架平台,可以通过满足自然息行为来改善肉的福利.
- 传统的 brojler 住房缺乏减轻热应激的功能,这是一个重大的福利和经济问题.
- 开发了具有冷却,避难和废物收集的多功能平台,以增强福利福利.
研究的目的:
- 评估多功能高架平台在热中性和热应激条件下对肉生产绩效,肉和肉质的影响.
- 通过检查关键绩效指标来评估这些丰富平台的商业可行性.
- 为了确定平台的功能是否能减轻热应激的负面影响.
主要方法:
- 三个实验回合,每回合有560只雄性罗斯308只肉,养43天.
- 笔被分配到热中和热应激的丰富 (多功能平台) 或荒的条件中.
- 在关键生长阶段 (29-40天) 每天6小时将环境温度提高到32°C,从而诱导热应激.
主要成果:
- 多功能平台没有影响肉生产性能 (体重,平均每日增加,料摄入量,料转换率).
- 热应激对体重,平均每日增加和料摄入有负面影响,但改善了料转化率.
- 平台在热应激下显著降低死亡率,这可能是由于冷却系统,并且降低了乳腺肌肉肌肉病的发生率.
结论:
- 多功能高架平台对肉来说是一个有前途的环境丰富,在不影响性能的情况下提高了福利.
- 平台的冷却功能有效地减轻了与热应激相关的死亡率.
- 与平台使用相关的肌肉病症减少可以提高肉质和消费者接受度,提高利能力.
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