热应激降低肉鸡小肠消化酶活性的研究

以艾维茵肉鸡为实验对象 ,研究了热应激对肉鸡消化酶活性的影响。结果显示 ,在热应激条件下 ,肉鸡小肠内总蛋白水解酶活性、脂肪酶活性和淀粉酶活性均显著下降。平均日增重与消化酶活性呈极显著正相关。表明消化酶活性下降是应激导致生产性能下降的重要原因

Study on Hot Stress Reducing Activities of Digestive Enzymes in Broiler Intestine

Avain broilers were used as experimental objects to study the influence of hot stress on the activities of intestine digestive enzymes. The results showed that hot stress decreased significantly the activities of total protein hydrolase,lipase and amylase in intestine. That the daily gain had a signicantly positive relationship to the activities of digestive enzymes in intestine demonstrated that the decrease of digestive enzymes was an important reason of bad performance caused by hot stress.