36个燕麦品种不同部位养分分布格局

Nutrients distribution patterns in different parts of 36 oat varieties

分析了天祝高寒草甸区36种不同饲用燕麦(Avena sativa)叶片、籽粒和茎秆中的水分、灰分、粗蛋白、可溶性糖、粗脂肪、磷、钙、粗纤维、中性纤维和酸性纤维含量的分布特征。结果显示:36个燕麦品种叶片中水分、灰分、粗蛋白、可溶性糖和钙含量显著高于籽粒和茎秆(P<0.05),平均值分别为6.36%、9.28%、19.82%、13.71%和0.25%;籽粒中粗脂肪和磷含量显著高于叶片和茎秆(P<0.05),平均值分别为:4.48%和0.25%;茎秆中粗纤维、中性洗涤纤维和酸性洗涤纤维含量显著高于叶片和种子(P<0.05),平均值分别为35.62%、65.18%和56.40%。总之,36种燕麦不同部位的营养价值高低依次为叶片>籽粒>茎秆。

The contents of moisture,ash,crude protein,water-soluble sugar,ether extract,calcium,phosphorus,crude fiber,neutral detergent fiber and acid detergent fiber in leaf,seed and stem of 36 varieties of forage oats were studied in alpine meadow area of Tianzhu County.The results showed that the content of moisture,ash,crude protein,soluble sugar and calcium in leaf were 6.36%,9.28%,19.82%,13.71% and 0.25% respectively,which were significantly（P0.05）higher than seed and stem.The ether extract and phosphorus contents in seed were 4.48% and 0.25% respectively,which significantly（P0.05） higher than that in leaf and stem.The crude fiber,neutral detergent fiber and acid detergent fiber contents in stems were 35.62%,65.18% and 56.40% respectively,which were significantly（P0.05）higher than that of leaf and seed.It could be concluded that the order of nutrition value of different parts were leaf seed stem.