谷饲饲粮粗蛋白质水平对荷斯坦公牛屠宰性能和肉品质的影响

赵洋洋,李妍,韩永胜,王晓玲,李建国,高艳霞,曹玉凤,李秋凤

The Slaughter Characteristics and Meat Quality of Holstein Bulls Grain-Fed Under Different Dietary Crude Protein Levels

YangYang ZHAO,Yan LI,YongSheng HAN,XiaoLing WANG,JianGuo LI,YanXia GAO,YuFeng CAO,QiuFeng LI

表3 不同饲粮粗蛋白质水平对奶公牛肉品质的影响

Table 3 Effects of different dietary crude protein levels on meat quality of Holstein bulls

项目 Item 组别Group SEM P值 P value Ⅰ Ⅱ Ⅲ pH 5.76±0.22 5.88±0.17 5.89±0.09 0.24 0.84 剪切力 Shear force (kg) 2.82±0.08 2.79±0.12 2.76±0.17 0.18 0.95 失水率 Dehydration rate (%) 29.40±0.58b 27.47±0.76ab 26.75±0.28a 0.81 0.04 蒸煮损失 Drop loss (%) 20.67±1.02 19.80±0.45 19.75±0.41 0.97 0.59 肉色 Meat color L 31.93±1.55 31.55±1.05 31.71±0.63 1.61 0.97 a 16.98±1.07 14.10±1.04 16.16±1.36 1.64 0.24 b 5.13±0.82 3.98±0.44 4.96±0.68 0.94 0.44 色度 Chroma 17.61±0.78 15.85±1.22 16.27±1.15 1.51 0.51 色相角度 Hue angle 0.29±0.04 0.28±0.03 0.29±0.01 0.04 0.92