山谷型藏羊与青海半细毛羊和青海藏羊的肌肉营养成分测定比较OA

In order to study and promote the advantages of excellent breeds and better serve the promotion and application of seed selection,breeding and mutton production performance,this study selected three breeds of valley-type Tibetan sheep,Qinghai semi-fine wool sheep and Qinghai Tibetan sheep,and Jie sheep of different ages.We carry out muscle nutrient compo-sition analysis and amino acid content determination.The results show that the main nutritional indicators and testing data of valley-type Tibetan sheep are crude protein content of 21.00%,crude fat 3.15%,cholesterol 0.3650(mg/g),volatile base ni-trogen 0.1190(mg/g),and total mineralcontent 6 785(mg/g),energy is 4.74(kJ/g).Its total amino acid content is 16.08%higher than Qinghai semi-fine wool sheep and 5.06%higher than Qinghai Tibetan sheep.The conclusion of this study is that the content of volatile basic acids can reflect the freshness of mutton,and anything within 0.15mg/g is considered fresh.This shows that the mutton tested in this analysis has high energy,high protein,low fat,low cholesterol and rich amino acid con-tent,and is a pollution-free food.