低压系统对夏季大规模家禽舍的温度,湿度,蛋产量和料利用效率的影响
Haiqing Peng1,2, Yang Wang1,2,3, Zhihao Zhang1,2
1Department of Agricultural Structure and Environmental Engineering, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China.
Animals : an open access journal from MDPI
|September 14, 2024
概括
低压系统 (LPS) 通过降低室内温度并最初降低蛋生产率,显著影响家禽养殖. 然而,这些系统也可以降低热应激,从而增加料摄入量和蛋重量.
科学领域:
- 农业科学 农业科学
- 气象学 天气学
- 动物科学动物科学
背景情况:
- 低压系统 (LPSs) 是重要的气象事件,引起了大量的温度波动.
- 急性温度变化直接影响家禽料摄入量 (FI) 和产卵性能.
- 了解这些影响对于优化家禽生产效率至关重要.
研究的目的:
- 研究LPS对室内空气温度,相对湿度,蛋产量和的料利用效率的影响.
- 量化LPS事件期间这些参数的变化.
- 提供关于在恶劣天气条件下管理家禽的见解.
主要方法:
- 在LPS事件期间,监测三个家禽舍的室内空气温度和相对湿度.
- 评估蛋生产率 (EPR),平均蛋重量 (AEW) 和料转化率 (FCRe).
- 统计分析以确定LPS登陆前,期间和之后的参数的显著差异.
主要成果:
- 在LPS登陆之前,室内空气温度显著下降 (p < 0.05).
- 蛋产量率 (EPRs) 最初下降,但对连续的LPS事件表现出不同的反应.
- 在LPS登陆期间,平均蛋重量 (AEW) 和料摄入量 (FI) 显著增加 (p < 0.01),料转换比率 (FCRe) 超过2.00.
结论:
- 在家禽舍中,LPS可以减少热应激.
- LPS事件导致EPR减少,FI增加,AEW增加和FCRe增加.
- 调查结果强调,需要在LPS事件期间对家禽进行战略管理,以减轻对绩效的负面影响.
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