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Effect of Backfat Thickness and Carcass Weight On Carcass Quality Grade in Commercial Pigs  

Jo, Hwan (Div. of Appl. Life Sci(Bk21 program), Gyeongsang National Univ.(Insti. of Agric. & Life Sci.))
Kim, Byeong-Woo (Div. of Appl. Life Sci(Bk21 program), Gyeongsang National Univ.(Insti. of Agric. & Life Sci.))
Sun, Du-Won (Div. of Appl. Life Sci(Bk21 program), Gyeongsang National Univ.(Insti. of Agric. & Life Sci.))
Park, Jae-Chan (Div. of Appl. Life Sci(Bk21 program), Gyeongsang National Univ.(Insti. of Agric. & Life Sci.))
Park, Cheol-Hyeon (Div. of Appl. Life Sci(Bk21 program), Gyeongsang National Univ.(Insti. of Agric. & Life Sci.))
Lee, Jung-Gyu (Div. of Appl. Life Sci(Bk21 program), Gyeongsang National Univ.(Insti. of Agric. & Life Sci.))
Publication Information
Journal of agriculture & life science / v.44, no.3, 2010 , pp. 53-60 More about this Journal
Abstract
This study was carried out to investigate the effect of environmental fators on backfat thickness and carcass weight and to investigate the carcass grade frequencies by sex, backfat thickness and carcass weight in commercial pigs. Total 20,450,773 of commercial pigs was used in this study, which were obtained from Korea institute for Animal Product Evaluation (KAPE) from July 1, 2007 to April 30, 2009. The averages of carcass weight and backfat thickness were $20.76{\pm}0.001mm$ and $85.97{\pm}0.002kg$, respectively. Carcass weight and backfat thickness of barrow were $22.55{\pm}0.002mm$ and $86.25{\pm}0.003kg$, respectively, which were significantly higher than those of males and females. The carcass weight and backfat thickness were increased with the slaughter years. In the effects of the season of slaughter, carcass weight was significantly higher in winter ($87.00{\pm}0.007kg$), and the backfat thickness was significantly higher in fall ($19.32{\pm}0.004mm$). In grade frequencies of carcass quality grade in sex, grade frequencies of high grade in barrow was higher than those of female in hot carcass and cold carcass. In grade frequencies of carcass quality grade in carcass weight, grade frequencies of high grade in 84~88kg was higher than the other groups in hot carcass and cold carcass. In grade frequencies of carcass quality grade in backfat thickness, grade frequencies of high grade in 22~24 mm was higher than other groups in hot carcass and cold carcass.
Keywords
Carcass Weight; Backfat Thickess; Carcass Quality Grade;
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Times Cited By KSCI : 2  (Citation Analysis)
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