然而，他们没有公布在肠道所采取的行动，消化酶活性。
However, they are not released in the gut by the action of digestive enzymes.
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。
Avain broilers were used as experimental objects to study the influence of hot stress on the activities of intestine digestive enzymes.
研究了日粮中添加抗生素或不同剂量三颗针提取物对肉仔鸡生长、养分表观代谢率和部分消化酶活性的影响。
Effects on growth, nutrient apparent metabolic rate and digestive enzyme activity of broilers by adding antibiotic and Berberis extract were studied.
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