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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.1
- 수록면
- 1 - 11 (11page)
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초록· 키워드
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Background: This study was conducted to investigate the potential association of variation in the insulin-like growth factor binding protein 2 (IGFBP2) gene with growth, carcass and meat quality traits in pigs. IGFBP2 is a member of the insulin-like growth factor binding protein family that is involved in regulating growth, and it maps to a region of pig chromosome 15 containing significant quantitative trait loci that affect economically important trait phenotypes.
Results: An IGFBP2 polymorphism was identified in the Michigan State University (MSU) Duroc × Pietrain F2 resource population (n = 408), and pigs were genotyped by MspI PCR-RFLP. Subsequently, a Duroc pig population from the National Swine Registry, USA, (n = 326) was genotyped using an Illumina Golden Gate assay.
The IGFBP2 genotypic frequencies among the MSU resource population pigs were 3.43, 47.06 and 49.51 % for the AA, AB and BB genotypes, respectively. The genotypic frequencies for the Duroc pigs were 9.82, 47.85, and 42.33 % for the AA, AB and BB genotypes, respectively. Genotype effects (P < 0.05) were found in the MSU resource population for backfat thickness at 10th rib and last rib as determined by ultrasound at 10, 13, 16 and 19 weeks of age, ADG from 10 to 22 weeks of age, and age to reach 105 kg. A genotype effect (P < 0.05) was also found for off test Longissimus muscle area in the Duroc population. Significant effects of IGFBP2 genotype (P < 0.05) were found for drip loss, 24 h postmortem pH, pH decline from 45 min to 24 h postmortem, subjective color score, CIE L* and b*, Warner-Bratzler shear force, and sensory panel scores for juiciness, tenderness, connective tissue and overall tenderness in MSU resource population pigs. Genotype effects (P < 0.05) were found for 45-min pH, CIE L* and color score in the Duroc population.
Conclusions: Results of this study revealed associations of the IGFBP2 genotypes with growth, carcass and meat quality traits in pigs. The results indicate IGFBP2 as a potential candidate gene for growth rate, backfat thickness, loin muscle area and some pork quality traits.
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참고문헌 (24)
참고문헌 신청
Anderson JR / 1999 / Optical measurements of pH in meat / Meat Sci 53 : 135 ~ 141
Bendall JR / 1988 / A review of the relationships of pH with physical aspect of pork quality / Meat Sci 24 : 85 ~ 99
Blanchard PJ / 1999 / The influence of the proportion of Duroc genes on growth, carcass and pork eating quality characteristics / Anim Sci 68 : 495 ~ 501
Choi I / 2012 / Evaluation of QTL for carcass merit and meat quality traits in a US commercial Duroc population / Meat Sci 92 : 132 ~ 138
Ciobanu DC / 2001 / Evidence for new alleles in the protein kinase adenosine monophosphateactivated γ3-subunit gene associated with low glycogen content in pig skeletal mus
Bendall JR / 1988 / A review of the relationships of pH with physical aspect of pork quality / Meat Sci 24 : 85 ~ 99
Blanchard PJ / 1999 / The influence of the proportion of Duroc genes on growth, carcass and pork eating quality characteristics / Anim Sci 68 : 495 ~ 501
Choi I / 2012 / Evaluation of QTL for carcass merit and meat quality traits in a US commercial Duroc population / Meat Sci 92 : 132 ~ 138
Ciobanu DC / 2001 / Evidence for new alleles in the protein kinase adenosine monophosphateactivated γ3-subunit gene associated with low glycogen content in pig skeletal mus
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