摘要
为了验证自产木聚糖酶的添加效果并确定其适应添加量,将180只健康且体质量接近的1日龄AA肉仔鸡,随机分为6组,每组6个重复,每重复5只。分别添加5个水平(0、500、1 000、1 500和2 000 U/kg)的自产木聚糖酶及1 000 U/kg的商品酶,研究其对肉仔鸡生产性能、养分利用率的影响,并比较自产酶与商品酶饲养效果。结果表明,与对照组比较,添加1 000 U/kg自产木聚糖酶可显著提高日增体质量、蛋白质利用率、能量利用率及粗纤维利用率(P<0.05),并显著降低平均日采食量和料肉比(P<0.05)。添加自产木聚糖酶1 000 U/kg与商品酶1 000 U/kg相比,日增体质量、采食量、料重比和蛋白质、能量及粗纤维利用率均没有显著性差异(P>0.05)。
This study investigated the effect of self-made xylanase in broiler diets of low energy.Our experiment focused on measuring performance parameters and estimating nutrient digestibilities.A total of 180 one-day-old AA broilers were randomly divided into six groups with six replicates of five chicks.Five different levels of xylanase（0,500,1 000,2 000 U/Kg） and control xylanase（1 000 U/kg） were added to basal diets.The results showed that,compared with the control group,the group with 1 000 U/kg xylanase could significantly improve average daily mass gain,nutrient digestibilities（P0.05）,and reduce average feed intake and feed weight ratio（P0.05）.However,there is no significant difference in all indexes compared with control xylanase.
出处
《西北农业学报》
CAS
CSCD
北大核心
2011年第10期24-27,42,共5页
Acta Agriculturae Boreali-occidentalis Sinica
基金
国家自然科学基金(30871813)
