工厂化猪场不同猪群死亡率与季节的关系初探

通过对哺乳仔猪群、保育群、育成群各月死亡率的统计分析发现,冬季低温对哺乳仔猪群、保育群死亡率的影响远远大于夏季高温的影响。冬季低温对保育群的死亡率影响最大,而对育成群几乎没有影响。夏季高温对不同猪群的死亡率有不同程度的影响力。不同猪群对温度反应的快慢、强度及持续期各不相同。

Preliminary Exploration on Relationship Between Death Rate of Different Pig Groups and Seasons in Factory Pig Farm

Statistical analysis by every month death rate of sucking group, weaner group and finished group show that the low temperature in winter influence more than the high temperature in summer on death rate of sucking group and weaner group. The low temperature in winter has a largest influence on death rate of weaner group, and scarcely influence on finished group. The high temperature in summer has different influence power on death rate of different pig group. Different pig groups have different reacting speed, intensity and persistence to temperature.