高乳遗传价值荷斯坦牛、标准乳遗传价值弗里斯牛和夏洛莱x荷斯坦-弗里斯牛的肉质特征

IF 0.9 4区农林科学 Q3 AGRICULTURE, MULTIDISCIPLINARY

Irish Journal of Agricultural and Food Research Pub Date : 2020-01-01 DOI:10.2478/ijafr-2020-0003

M. McGee, M. Keane, R. Neilan, P. Caffrey, A. Moloney

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引用次数: 4

摘要

摘要荷斯坦遗传物质在爱尔兰奶牛群中的使用增加对牛肉生产产生了影响。总共有42头春季出生的公牛[14头荷斯坦牛（HO），14头弗里斯牛（FR）和14头夏洛莱×荷斯坦-弗里斯牛[CH）]在26至37个月大时被饲养屠宰。CH的胴体重量高于乳制品，脂肪含量低于乳制品（P＜0.05）。与乳制品品种相比，CH的总体可接受性往往较低（P=0.055），而嫩度、质地和耐嚼性较低（P<0.05）。CH的C16:1在总脂质中的比例往往低于乳制品品种（P=0.055）。用基因优越（从乳制品的角度来看）的荷斯坦公牛品种的后代取代传统“爱尔兰”弗里斯公牛的雄性后代，对牛肉的营养或食用质量没有商业上的重要影响。

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Meat quality characteristics of high dairy genetic-merit Holstein, standard dairy genetic-merit Friesian and Charolais x Holstein-Friesian steers

Abstract The increased use of Holstein genetic material in the Irish dairy herd has consequences for beef production. In all, 42 spring-born steers [14 Holsteins (HO), 14 Friesian (FR) and 14 Charolais × Holstein-Friesian (CH)] were reared to slaughter at between 26 and 37 mo of age. Carcass weight was higher and the lipid concentration of m. longissimus thoracis et lumborum was lower (P < 0.05) for CH than the dairy breeds. Overall acceptability tended to be lower (P = 0.055) while tenderness, texture and chewiness were lower (P < 0.05) for CH compared with the dairy breeds. The proportion of C16:1 in the total lipid tended to be lower (P = 0.055) for CH than the dairy breeds. Replacing male offspring of traditional “Irish” Friesian bulls with offspring from a genetically superior (from a dairy perspective) strain of Holstein bull had no commercially important impact on beef nutritional or eating quality.

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来源期刊

Irish Journal of Agricultural and Food Research 农林科学-农业综合

CiteScore

2.50

自引率

20.00%

发文量

审稿时长

>36 weeks

期刊介绍： The Irish Journal of Agricultural and Food Research is a peer reviewed open access scientific journal published by Teagasc (Agriculture and Food Development Authority, Ireland). Manuscripts on any aspect of research of direct relevance to Irish agriculture and food production, including plant and animal sciences, food science, agri environmental science, soils, engineering, buildings, economics and sociology, will be considered for publication. The work must demonstrate novelty and relevance to the field of research. Papers published or offered for publication elsewhere will not be considered, but the publication of an abstract does not preclude the publication of the full paper in this journal.