肉仔鸡对膨化羽毛粉氨基酸消化率、代谢能的测定

Determination of Digestion and Metabolizable Energy of Amino Acids in Expanded Feather Meal for Broilers

利用优化工艺参数条件生产出的膨化羽毛粉，饲喂肉仔鸡以测定产品的氨基酸消化率和真代谢能，旨在验证该工艺参数在工业化生产上的重现性并进行产品的营养价值评定。结果表明：膨化羽毛粉的氨基酸真消化率母鸡为８８．９％±０．０４９％，公鸡为８３．６％±０．０５０％；胱氨酸的真消化率依次为８６．８％±０．０２１％，８３．１％±０．０２５％；真代谢能依次为１３．５３ＭＪ／ｋｇ，１３．１１ＭＪ／ｋｇ。表明该工艺参数是合理的，膨化羽毛粉的营养价值达到和超过了项目设计要求的水平。

The broilers feeding experiment with expanded feather meal produced under the condition of optimized technological parameters and the determination of digestion and true metabolizable energy were carried out. The results indicated that the true digestion of amino acids in the expanded feather meal were 88.9%0.049% for females and 83.6%0.050% for males;the true digestion of cystine were 86.8% 0.021%,83.1%0.025% and the true metalolizable energy were 13.53% MJ/kg,13.11 MJ/kg respectively.It showed that the technological parameters were rational and the nutritive value of the expanded feather meal conformed with the designed requirement.