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Carcass characteristics and meat quality of heifers fed marandu grass silage. 收藏

喂养马兰草青贮饲料的母牛的屠体特性和肉质量
原文求助 发布源
作者
MENDES, Gustavo Almeida et al.
关键词
crossbred cattle; feedlot; shear force; carcass yield.
关键词译文
杂交牛饲养场剪切力;胴体产量
页码
1774-1781
DOI
10.1590/S0100-204X2012001200014
来源信息
Pesquisa Agropecuária Brasileira ISSN：0100-204X, 2012年, 47卷, 12期, 1774-1781页
摘要
The objective of this work was to evaluate the carcass characteristics and meat quality of ¾ Zebu x Holstein heifers subjected to a diet with the substitution of sorghum silage by marandu grass silage. A completely randomized experimental design was used. Treatments consisted of replacing the bulky fraction of the diet of 100, 70, and 30% of sorghum silage by, respectively, 100, 70, and 30% of marandu grass silage. Concentrate was added in the proportion of 1.2% of live weight, and diets were isoproteic. The substitution of sorghum silage by marandu grass silage increased water loss by cooking to the maximum point of 49.98% of substitution, elevated average shear force and water holding capacity of meat, but did not influence carcass weight and yield, cut percentiles, carcass measures, loin eye area, pH of carcasses, fat thickness, and characteristics of muscle and fat color. The substitution of sorghum silage by marandu grass silage decreases the gain of empty body weight and reduces the tenderness of meat from ¾ Zebu x Holstein heifers, but does not affect quantitative carcass traits
摘要译文
这项工作的目的是评估饲料Zebu x荷斯坦奶牛的胴体特性和肉质量，用高粱青贮饲料代替青du草青贮饲料使用完全随机的实验设计。处理包括将100,70和30％的高粱青贮饲料的大部分分别替换为100,70，和30％的marandu草青贮饲料以活重的1 5的比例加入，并且饮食为异戊二酸用高粱青贮饲料替代青du草青贮饲料，通过蒸煮将失水量增加到49 25的最大值，提高肉的平均剪切力和保水能力，但不影响胴体重和产量，切割百分比，屠体测量，腰围区域，屠体的pH，脂肪厚度，和肌肉和脂肪颜色特征用marandu草青贮代替高粱青贮减少了空体重的增加，并降低了来自¾Zebu x Holstein母牛的肉的压痛，但不影响定量胴体性状
MENDES, Gustavo Almeida et al.. Carcass characteristics and meat quality of heifers fed marandu grass silage.[J]. Pesquisa Agropecuária Brasileira, 2012,47(12): 1774-1781