利用地下水对猪舍地板局部降温效果研究
Effects of cooling floor for pig house using underground water
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摘要: 躺卧区温度高低对猪只的躺卧行为有直接影响。利用地下水，为农村简易开放式猪舍的躺卧区地板设计了一套局部降温系统。试验结果表明，躺卧区无降温系统时，其地板温度与舍外气温接近；采用该降温系统后，在室外气温为27～34℃时，躺卧区地板温度基本维持在22～26℃之间，基本满足了猪只躺卧的要求。躺卧区地板温度低于26℃时，85%以上的猪选择躺卧区躺卧；温度为30～32℃时，只有10%～20%的猪仍选择躺卧区躺卧；超过33℃后，所有的猪都不在躺卧区休息。Abstract: The temperature of sleeping area directly affects the lying behaviour for pigs. A floor cooling system using underground water of the sleeping area in an open housing was designed. The lying behaviours of pigs with different floor temperatures were observed. The results show that the floor temperature was close to the outside temperature without the cooling system, and the cooling effect was significant when the cooling system was used. The floor temperature could maintain between 22～26℃ using the cooling system, while the outside air temperature was 27～34℃. More than 85% of the pigs lay on the sleeping area when the floor temperature was below 26℃, and only 10%～20% of the pigs lay on the sleeping area when the floor temperature was about 30℃, while no pig laid on the sleeping area when the floor temperature was above 33℃.
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Keywords:
- open pig housing /
- underground water /
- floor cooling system /
- lying behaviour
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