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2016年国家牛肉质量审计:对影响市场母牛和公牛及其胴体和相关副产品价值的目标生产者相关特征进行运输、移动性、活畜和胴体评估。

National Beef Quality Audit-2016: Transportation, mobility, live cattle, and carcass assessments of targeted producer-related characteristics that affect value of market cows and bulls, their carcasses, and associated by-products.

作者信息

Harris M K, Eastwood L C, Boykin C A, Arnold A N, Gehring K B, Hale D S, Kerth C R, Griffin D B, Savell J W, Belk K E, Woerner D R, Hasty J D, Delmore R J, Martin J N, Lawrence T E, McEvers T J, VanOverbeke D L, Mafi G G, Pfeiffer M M, Schmidt T B, Maddock R J, Johnson D D, Carr C C, Scheffler J M, Pringle T D, Stelzleni A M

机构信息

Department of Animal Science, Texas A&M AgriLife Research, Texas A&M University, College Station 77843.

Department of Animal Sciences, Colorado State University, Fort Collins 80523.

出版信息

Transl Anim Sci. 2017 Dec 1;1(4):570-584. doi: 10.2527/tas2017.0063. eCollection 2017 Dec.

Abstract

The National Beef Quality Audit-2016 marks the fourth iteration in a series assessing the quality of live beef and dairy cows and bulls and their carcass counterparts. The objective was to determine the incidence of producer-related defects, and report cattle and carcass traits associated with producer management. Conducted from March through December of 2016, trailers ( = 154), live animals ( = 5,470), hide-on carcasses ( = 5,278), and hide-off hot carcasses ( = 5,510) were surveyed in 18 commercial packing facilities throughout the United States. Cattle were allowed 2.3 m of trailer space on average during transit indicating some haulers are adhering to industry handling guidelines for trailer space requirements. Of the mixed gender loads arriving at processing facilities, cows and bulls were not segregated on 64.4% of the trailers surveyed. When assessed for mobility, the greatest majority of cattle surveyed were sound. Since the inception of the quality audit series, beef cows have shown substantial improvements in muscle. Today over 90.0% of dairy cows are too light muscled. The mean body condition score for beef animals was 4.7 and for dairy cows and bulls was 2.6 and 3.3, respectively. Dairy cattle were lighter muscled, yet fatter than the dairy cattle surveyed in 2007. Of cattle surveyed, most did not have horns, nor any visible live animal defects. Unbranded hides were observed on 77.3% of cattle. Carcass bruising was seen on 64.1% of cow carcasses and 42.9% of bull carcasses. However, over half of all bruises were identified to only be minor in severity. Nearly all cattle (98.4%) were free of visible injection-site lesions. Current results suggest improvements have been made in cattle and meat quality in the cow and bull sector. Furthermore, the results provide guidance for continued educational and research efforts for improving market cow and bull beef quality.

摘要

《2016年全国牛肉质量审计》是该系列评估活牛、奶牛、公牛及其胴体质量的第四次迭代。目的是确定与生产者相关的缺陷发生率,并报告与生产者管理相关的牛和胴体特征。2016年3月至12月期间,在美国18家商业屠宰设施中对拖车(n = 154)、活体动物(n = 5470)、带皮胴体(n = 5278)和去皮热胴体(n = 5510)进行了调查。在运输过程中,牛平均有2.3米的拖车空间,这表明一些运输者遵守了行业对拖车空间要求的处理准则。在抵达加工设施的混合性别装载中,64.4%的被调查拖车未将母牛和公牛分开。在评估行动能力时,绝大多数被调查的牛健康状况良好。自质量审计系列开始以来,肉牛的肌肉状况有了显著改善。如今,超过90.0%的奶牛肌肉过轻。肉牛的平均体况评分为4.7,奶牛和公牛的平均体况评分分别为2.6和3.3。与2007年调查的奶牛相比,奶牛肌肉更轻,但更胖。在被调查的牛中,大多数没有角,也没有任何明显的活体动物缺陷。77.3%的牛观察到无烙印的皮。64.1%的母牛胴体和42.9%的公牛胴体有胴体瘀伤。然而,超过一半的瘀伤被确定为轻度。几乎所有的牛(98.4%)没有可见的注射部位病变。目前的结果表明,母牛和公牛部门的牛和肉质量有所改善。此外,这些结果为继续开展提高市场母牛和公牛牛肉质量的教育和研究工作提供了指导。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e755/7204971/77d27894db5b/570fig1.jpg

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