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자료유형
학술저널
저자정보
저널정보
강원대학교 동물자원공동연구소 동물자원연구 동물자원연구 제18권
발행연도
2007.1
수록면
111 - 121 (11page)

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This study was conducted to compare the carcass characteristics of native type black pigs (Black pigs) with those of commercial cross bred pigs (Commercial pigs) with the data collected from pig farms. 8364 and 33786 records were collected from Black pigs and the Commercial pigs, respectively. The Commercial pigs were mainly from three breed crosses of Yorkshire, Landrace and Duroc. Commercial pig data was subdivided into manual and machine sub data set on the judging method. Black pigs showed lower carcass weight (CWT) and thinner back fat thickness (BFT) than Commercial pigs. However, the ratio of BFT to CWT (BFT/CWT ratio) was higher in Black pigs than Commercial pigs. The carcass grades of Commercial pigs were mostly in A and B, C, and D in descending order, while the grades D or E were observed in most carcass of Black pigs. Barrow tended to be thicker in BFT and higher in BFT/CWT ratio than gilt both in Commercial and Black pigs, and gilt were higher in loin depth (LD) and Estimated Lean Yield Percentage (ELP) which were available only in the data by machine evaluation of Commercial pigs. Residual correlation coefficient (+0.496) between carcass weight and back fat thickness in Black pigs did not differ from those in Commercial pigs which were +0.434 and +0.414 in the data by manual and machine evaluation, respectively. The linear regression coefficients of back fat thickness on carcass weight were +0.364 mm in Black pigs, and +0.257 mm (manual evaluation) and +0.236 (machine evaluation) in Commercial pigs, which suggests relative accumulation rate of BFT to the growth of weight was faster in Black pigs than Commercial pigs.

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