夏季养猪缓解热应激的营养调控原则与方法

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1 适当减少碳水化合物和高纤维饲料添加量高温环境下猪采食量减少,造成能量供给不足。为缓解猪受高温环境的影响,一般在高温季节应给予猪较高营养的日粮,以弥补因高温引起的能量摄入量的不足。因为猪在热应激期间对饲料脂肪的消化率高于其他营养物质,这是由于脂肪具有碳水化合物或蛋白质较低的热增耗和具有较高的能量值,因此,在猪的日粮中添加脂肪2%~3%,一方面可提高日粮的能量水平,稳定猪只增重速度。
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