Case study: Impact of Hypoderma lineatum upon live growth, carcass attributes, and hide grade of fed beef cattle

Texas Journal of Agriculture and Natural Resources

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Title Case study: Impact of Hypoderma lineatum upon live growth, carcass attributes, and hide grade of fed beef cattle
 
Creator Lawrence, Ty E
Daniel E. Guadian Garcia
John T. Richeson
Bonnie B. Pendleton
 
Description A case study evaluated the influence of cattle grubs on growth during the finishing phase, carcass attributes, and hide grade. At arrival processing (d 0), some crossbred bulls within a load of cattle were noted to be infested with the common cattle grub {Hypoderma lineatum (Villers)} and were treated with an anthelmintic. Cattle were palpated (d 12) to quantify rate of grub infestation; grubs were manually extracted from the left side of animals whereas right-side grubs remained. Two grub-infested cattle were euthanized (d18) to quantify hide and carcass damage. Cattle were periodically weighed (d 12, 40, 70, 96, 124, 152, 180, 208, 234, 236, 264) to assess growth between grub-free and grub-infested animals. Finished cattle were commercially slaughtered (n=9 on d 234; n=19 on d 264); individual quality and yield grade parameters were assessed. Hides were individually identified and tracked through de-fleshing, de-hairing, and blue-chroming processes; blue-chrome hides were graded as #1, #2, or #3 hides. No difference in initial weight (P=0.89), finished weight (P=0.35), average daily gain (P=0.59), hot carcass weight (P=0.38), longissimus muscle area (P=0.91), 12th rib subcutaneous fat depth (P=0.64), KPH fat (P=0.38), or yield grade (P=0.84) was detected between grub-free and grub-infested cattle... 
 
Publisher Agricultural Consortium of Texas
 
Date 2020-02-06
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://txjanr.agintexas.org/index.php/txjanr/article/view/360
 
Source Texas Journal of Agriculture and Natural Resources; Vol. 32 (2019); 12-20
2165-1205
 
Language eng
 
Relation http://txjanr.agintexas.org/index.php/txjanr/article/view/360/377
 
Rights Copyright (c) 2019 Texas Journal of Agriculture and Natural Resources
 

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