Effect of immunocastration with Bopriva on carcass characteristics and meat quality of feedlot Holstein bulls

被引：20
|
作者：
Perez-Linares, C. [1 ]
Bolado-Sarabia, L. [1 ]
Figueroa-Saavedra, F. [1 ]
Barreras-Serrano, A. [1 ]
Sanchez-Lopez, E. [1 ]
Tamayo-Sosa, A. R. [1 ]
Godina, A. A. [1 ]
Rios-Rincon, F. [2 ]
Garcia, L. A. [3 ]
Gallegos, E. [4 ]
机构：
[1] Univ Autonoma Baja California, Inst Invest Ciencias Vet, A Obregon & J Carrillo S-N Col Nueva, Mexicali 21100, Baja California, Mexico
[2] Univ Autonoma Sinaloa, Fac Med Vet & Zootecnia, Blvd San Angel S-N Predio Las Coloradas, Culiacan 80326, Sinaloa, Mexico
[3] Ganadera Mexicali SA CV, Kilometro 3-5 Carretera San Luis S-N, Mexicali, Baja California, Mexico
[4] Lab Zoetis SA, Paseo Tamarindos 60, Mexico City 05120, DF, Mexico
来源：
MEAT SCIENCE | 2017年 / 123卷
关键词：
Immunocastration; Testosterone; Carcass; Meat quality; SURGICAL CASTRATION; VACCINE BOPRIVA; BEEF; PERFORMANCE; GNRH; BEHAVIOR; PASTURE; GROWTH; DARK; FIRM;
D O I：
10.1016/j.meatsci.2016.08.006
中图分类号：
TS2 [食品工业];
学科分类号：
0832 ;
摘要：
To evaluate the effect of immunocastration on carcass and meat characteristics, Holstein bulls aged between 7 and 8 months with a live weight of 232 +/- 1.19 kg were given two separate treatments, placebo (intact bulls) versus Bopriva, and then slaughtered after approximately 239 days of fattening. While the testosterone levels in intact bulls remained at 0,42 ng/ml throughout the study, by day 181, differences (P < 0.05) were observed in immunized bulls, with values of 0.21 ng/ml. The carcasses of animals treated with Bopriva recorded both a higher hot carcass weight (HCW) and a cold carcass weight (CCW), as well as higher dorsal fat density, marbling and MPH (P<0.05); however, no differences (P> 0.05) were observed in the Longissimus lumborum area. No significant differences (P>0.05) were recorded between the treatments for pH, L*, a*, b* C* and H*. The carcasses of the animals treated with Bopriva were heavier, with higher dorsal fat density and marbling score. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：45 / 49
页数：5
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