지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.9
- 수록면
- 229 - 236 (8page)
이용수
초록· 키워드
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This study presents the estimates of heritabilities of body measurement traits and carcass traits, and genetic and phenotypic correlations of those traits for crossbred pigs in Korea. Body and ultrasound (A mode: Piglog 105) measurements in 221 pigs including body weight, length, height and width, three back fat thickness at the points of 4th, 14th rib and chine bone, eye muscle area and lean meat percent were collected at the ages of 70, 145 and 180 days and then slaughtered to measure carcass weight, back fat, belly, collar butt, spare rib, picnic shoulder, hind leg, loin, tenderloin, lean meat yield and intramuscular rough fat content in loin. Genetic analysis was done using a multi-trait animal model. Heritabilties of the body measurements were ranged from 0.331 to 0.559 and three measurements of back fat thickness were also high as range varying from 0.402 to 0.475 for the ages of 145 and 180 days. However, eye muscle area was moderate (0.296) at the age of 180 days. Heritabilities of retail cut yields were also high as ranged from 0.387 to 0.474 and of IMF content in loin was 0.499. Heritabilities of the cut percent traits were ranged from 0.249 to 0.488. Important positive genetic and phenotypic correlations were noted for all carcass yield traits (0.298 to 0.875 and 0.432 to 0.922, respectively). IMF showed low negative genetic correlations with carcass yield traits, such as carcass weight, picnic shoulder, hind leg, loin, tenderloin and lean meat yield whereas low positive genetic correlations with back fat, belly, collar butt and spare rib. Loin, tenderloin and lean meat percent showed negative genetic correlations with carcass weight, back fat thickness, collar butt, spare rib and picnic shoulder percent. The four body measurements at the ages of 70, 145 and 180 days had positive genetic correlations with belly, shoulder butt, spare rib, picnic shoulder and hind leg percent, but negative genetic correlations were shown with loin and tenderloin percent except body measurements at 70 days. The results suggest that carcass yield are negatively correlated with intramuscular fat content, which is a major factor deciding pork quality and the yield of loin and tenderloin are not increased as much as increase in body size. However, the proportions of belly and collar butt are increased with the body size. In conclusion, selection strategy should be designed according to the preference on composition of carcass in each country.
목차
Abstract
I. Introduction
II. Materials and Method
III. Results and Discussion
References
참고문헌 (21)
참고문헌 신청
Association of Official Analytical Chemists / 1997 / Official Methods of Analysis (16th ed) / Association of Official Analytical Chemists
Cho, S. / 2007 / Effect of meat appearance on south Korean consumers' choice of pork chops determined by image methodology / Journal of Sensory Studies 22(1):99~114
Ciobanu, D. C. / 2011 / The Genetics of the Pig / CPI Antony Rowe :355~378
Dransfield, E. / 2005 / Consumer choice and suggested price for pork as influenced by its appearance, taste and information concerning country of origin and organic pig production / Meat Sci 69:61~70
Escriche, N. I. / 2011 / Genetic evaluation combining purebred and crossbred data in a pig breeding scheme / J. Anim. Sci 89:3881~3889
Cho, S. / 2007 / Effect of meat appearance on south Korean consumers' choice of pork chops determined by image methodology / Journal of Sensory Studies 22(1):99~114
Ciobanu, D. C. / 2011 / The Genetics of the Pig / CPI Antony Rowe :355~378
Dransfield, E. / 2005 / Consumer choice and suggested price for pork as influenced by its appearance, taste and information concerning country of origin and organic pig production / Meat Sci 69:61~70
Escriche, N. I. / 2011 / Genetic evaluation combining purebred and crossbred data in a pig breeding scheme / J. Anim. Sci 89:3881~3889
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UCI(KEPA) : I410-ECN-0101-2015-400-002751323