荷斯坦奶牛与德系西门塔尔牛杂交对其后代产肉性能和肉品质的影响

发布时间：2018-01-25 05:01

本文关键词： 德系西门塔尔牛荷斯坦奶牛产肉性能肉品质　出处：《河南农业科学》2017年01期 　论文类型：期刊论文

【摘要】：为了提高荷斯坦奶牛后代的产肉性能和肉品质,将德系西门塔尔牛冻精冷配荷斯坦奶牛,选择杂交一代的公牛(试验组)和荷斯坦公牛(对照组)各20头,通过育肥和屠宰试验比较其生长发育指标、屠宰性状指标和肉品质指标。结果表明,与对照组相比,18月龄试验组体质量极显著提高7.74%,优质肉块质量牛柳+西冷、大米龙+小米龙分别极显著提高30.56%、27.07%,眼肌面积极显著提高21.09%,牛肉中粗蛋白、总氨基酸、谷氨酸、甘氨酸和天门冬氨酸的含量分别显著提高17.63%、8.19%、10.39%、19.19%和28.75%。综上,利用德系西门塔尔牛冻精冷配荷斯坦奶牛可以提高荷斯坦牛后代公牛的生长性能、产肉性能和肉品质。
[Abstract]:In order to improve the meat production performance and meat quality of the offspring of Holstein cattle, the frozen semen of German Simmental cattle was coldly mixed with Holstein cows. The crossbred bulls (test group) and Holstein bulls (control group) were divided into two groups: 20 oxen (test group) and 20 Holstein bulls (control group). The growth and development index, slaughtering character index and meat quality index were compared by fattening and slaughtering experiments. The results showed that the body weight of the 18-month-old group was significantly higher than that of the control group by 7.74%. The quality of beef meat was significantly increased by 30.56% 27.07, the area of eye muscle was significantly increased by 21.09%, the beef protein and total amino acid were increased significantly. The contents of glutamate, glycine and aspartic acid increased significantly by 17.63 ~ 8.19 ~ 10.39% and 28.75% respectively. The growth performance, meat yield and meat quality of Holstein offspring can be improved by using German Simmental frozen fine and Holstein cows.
【作者单位】：新疆农垦科学院畜牧兽医研究所;新疆西部牧业股份有限公司;
【基金】：新疆建设兵团重大科技项目(2014AA001)
【分类号】：S823
【正文快照】： 肉牛业是我国畜牧业的重要组成部分,近年来发展迅速[1]。牛肉属于高蛋白、低脂肪的肉类,随着人们生活水平的不断提高,牛肉成为肉类消费的重要部分,人们对牛肉品质也提出了更高的要求[2-3]。氨基酸的含量和种类在一定程度上可以决定蛋白质的品质,而牛肉营养价值主要通过蛋白质

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