Hide Defects of Feedlot Cattle: Assessment of Cattle Management, Breed Type, Sex, Live Market Weight, and Source Factors on Hide Quality

IF 0.6 4区工程技术 Q4 CHEMISTRY, APPLIED Journal of The American Leather Chemists Association Pub Date : 2021-04-01 DOI:10.34314/jalca.v116i4.4284

W. T. Wright, C. Richardson, M. Bonds, G. Pollard, P. O. Sudharkaran, A. M. Gonzalez, S. Martínez

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引用次数: 2

Abstract

Twenty groups of finished feedlot cattle (thirteen steer groups, seven heifer groups) of known origin, breed type, sex and implant status were studied after marketing to determine the type and extent of hide defects as related to days on feed, live market weight, and hot carcass weight. Origin of cattle did not significantly influence the five hide characteristics evaluated (hide defects score, hide vein score, healed scratches, ringworm, and warts). Live weight and sex influenced the weight of the hides (P < 0.05), with steers being heavier and having heavier hides. Days on feed increased (P = 0.06) the amount of vein damage observed on the hides but was not sex related. Results from this study indicate that under typical commercial cattle feeding practices in Texas, hide defects differ among cattle under the same management and are related to the days on feed in the feedlot, which influences final market weight and degree of finish.

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饲养场牛皮缺陷:牛管理、品种类型、性别、活市重及源因素对皮质量的影响

研究了20组已知来源、品种类型、性别和植入状态的育肥牛(13个阉牛组，7个小母牛组)在上市后的皮缺陷类型和程度，以确定与饲料日数、活市重和热胴体重相关的皮缺陷类型和程度。牛的产地对5种兽皮特征评估(兽皮缺陷评分、兽皮静脉评分、愈合划痕、癣和疣)没有显著影响。活重和性别影响生皮重量(P < 0.05)，肉牛越重，生皮越重。饲喂日数增加了皮上静脉损伤的数量(P = 0.06)，但与性别无关。本研究结果表明，在德克萨斯州典型的商业牛饲养实践中，在相同管理下，牛的隐藏缺陷不同，并且与饲养场的饲料天数有关，从而影响最终的市场重量和育肥度。

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来源期刊

Journal of The American Leather Chemists Association 工程技术-材料科学：纺织

CiteScore

1.30

自引率

33.30%

发文量

审稿时长

3 months

期刊介绍： The Journal of the American Leather Chemists Association publishes manuscripts on all aspects of leather science, engineering, technology, and economics, and will consider related subjects that address concerns of the industry. Examples: hide/skin quality or utilization, leather production methods/equipment, tanning materials/leather chemicals, new and improved leathers, collagen studies, leather by-products, impacts of changes in leather products industries, process efficiency, sustainability, regulatory, safety, environmental, tannery waste management and industry economics.