構造分析を加えた牧草の組成および栄養価研究-8-赤クローバー生草およびサイレージ蛋白質のラットによる栄養価の比較

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In order to compare the nutritive values of proteins in soilage and silage, this experiment was carried out. Materials used here were the same as reported in the previous report, and the results obtained were as follows:1) To measure the nutritive values of proteins in concentrated part of red clover soilage and silage for rat, diets containing 10% level of protein were prepared. Body weight gain, digestibility, biological value and nitrogen balance were determined and it was proved that protein of soilage were superior to that of silage.2) Free amino acids released from proteins of concentrated part of red clover soilage and silage by in vitro digestion with pepsin, trypsin, elepsin and pancreatin were determined by amino acids analyser. The liberation rate of total nitrogen of soilage was heigher than that of silage. The liberated amino acids which were found in larger quantity were tyrosine and arginine in both soilage and silage proteins. On the contrary, very small amounts of glutamic acid, aspartic acid and glycine were found as free form.3) The nutritive values of proteins of red clover hay and dried red clover silage were determined and it was found that the former was the better protein source than the latter for rat.
社団法人日本畜産学会の論文