Seideman S C, Crouse J D
USDA/ARS, Roman L. Hruska US Meat Animal Research Center, PO Box 166, Clay Center, NE 68933, USA.
Meat Sci. 1986;17(1):55-72. doi: 10.1016/0309-1740(86)90083-5.
The effects of sex condition, breed type and dietary energy level on muscle fiber characteristics were examined at various ages and related to carcass characteristics and meat palatability. Cattle fed a low-energy diet had a significantly higher percentage of red muscle fibers, larger white muscle fiber areas and a greater percentage area of red muscle fibers than cattle fed a high-energy diet. A significant sex × breed within slaughter group interaction existed, which was complicated due to differences within breeds and sexes at different points of physiological maturity. Separate correlation coefficients for bulls and steers are shown that suggest strong directional interactions between carcass characteristics and meat quality, and muscle fiber characteristics.
研究了性别条件、品种类型和日粮能量水平对不同年龄牛肌肉纤维特性的影响，并将其与胴体特性和肉的适口性相关联。与高能日粮组的牛相比，低能日粮组的牛红色肌纤维百分比显著更高，白色肌纤维面积更大，红色肌纤维面积百分比也更大。在屠宰组内存在显著的性别×品种交互作用，由于不同生理成熟阶段的品种和性别差异，这种交互作用较为复杂。给出了公牛和阉牛各自的相关系数，表明胴体特性与肉质以及肌肉纤维特性之间存在强烈的方向性相互作用。
