The effect of cattle feed on beef quality and oxidative stability was investigated. A corn silage (CS)-based finishing diet was compared with the diets based on corn stalk silage (SS) or corn stalk silage combined with its expected corn grain (SSC), containing a ratio of stalk to grain of corn plant of 1.5:1. Replacing CS with SS in the finishing diet had no effect on the proximate nutrients, cholesterol content, fatty acids profile, pH, color, water holding capacity, tenderness, texture profile, or oxidative stability of beef muscle. Compared to the CS diet and SS diet, cattle fed SSC diet showed an inferior antioxidant capacity, lower SOD and higher MDA concentrations in blood. SSC diet fed cattle also showed higher MDA and protein carbonyl concentrations in beef muscle indicating increased oxidation damage, and potentially resulting in a greater drip loss of the beef muscle. Corn silage can be replaced in the finishing feed of beef cattle with corn stalk silage without any negative effects on measures of beef quality.

研究了牛饲料对牛肉质量和氧化稳定性的影响。将基于玉米青贮饲料（CS）的最终饮食与基于玉米秸秆青贮饲料（SS）或玉米秸秆青贮饲料结合其预期玉米籽粒（SSC）的饮食进行了比较，其中玉米秸秆与玉米植株的比率为1.5： 1。在最终饮食中用SS代替CS对牛肉的主要营养成分，胆固醇含量，脂肪酸谱，pH，颜色，持水量，嫩度，质地和氧化稳定性没有影响。与CS日粮和SS日粮相比，饲喂SSC日粮的牛显示出较差的抗氧化能力，较低的SOD和较高的血液中MDA浓度。SSC日粮饲喂的牛还显示牛肉肌肉中MDA和蛋白质羰基的浓度较高，表明氧化损伤增加，并可能导致牛肉肌肉的滴水损失更大。玉米青贮饲料可以用玉米秸秆青贮饲料代替肉牛精饲料中的玉米青贮饲料，而不会对牛肉质量产生负面影响。