中国油料作物学报2017，Vol.39Issue(2)：197-203,7.DOI:10.7505/j.issn.1007-9084.2017.02.009
油菜华油杂62不同生长期氨基酸组成及营养价值评价
Forage amino acid composition and nutrition of Brassica napus L.cv Huayouza 62 in different growth stages
摘要
Abstract
To evaluate the protein nutrient of forage rapeseed,Brassica napus cv Huayouza 62 was studied based on FAO/WHO criteria model about essential amino acid (EAA).The essential amino acids for nutritional values were measured on Huayouza 62 protein at different growth periods.Results showed that rapeseed protein began to decrease gradually with the growth periods,but amino acids were rich in different stages.The content of essential amino acid in the flowering stage were Met + Cys (3.36％),Phe + Tyr (10.11％) and Ile (5.64％),Leu (9.45％),Val (6.73％) in initial podding,which were higher than those of other growth periods of the total amino acids.In flowering and initial podding stages,ratio of total essential amino acids to total amino acids (TEAA/TAA) were 44.88％ and 44.36％ respectively.The ratio of total essential amino acids to total non essential amino acids were 0.81 and 0.80 respectively,which were higher than those of other periods.By the amino acid ratio coefficient method,the essential amino acid index in initial podding and podding stages were much higher than that of other periods.The score of ratio coefficient (SRC) of amino acid was up to 82 at the initial podding stage.According to the feed criteria for cattle,sheep and goat,all the essential amino acids index of Huayouza 62 was greater than 0.95.When combined with biological yield and forage palatability,it could be concluded that Huayouza 62 plants at flowering and initial podding stages could be developed as new feed for ruminant animals.关键词
甘蓝型油菜/氨基酸组成/氨基酸比值/必需氨基酸指数/饲草蛋白Key words
rapeseed/composition of amino acid/ratio of amino acid/essential amino acid index/forage protein分类
农业科技引用本文复制引用
杨雪海,张巍,赵娜,陈芳,魏金涛,傅廷栋,周广生,李晓峰..油菜华油杂62不同生长期氨基酸组成及营养价值评价[J].中国油料作物学报,2017,39(2):197-203,7.基金项目
湖北省油菜产业体系项目(高效冬春饲用作物种植与转化) （高效冬春饲用作物种植与转化）
湖北省农业科学院院竞争性项目(家畜疾病监测及饲喂方式关键技术研究) （家畜疾病监测及饲喂方式关键技术研究）
湖北省农业科学院援藏项目 （）
湖北省创新团队项目(2017-620-004-001) （2017-620-004-001）
