Growth, carcass, fiber type, and meat quality characteristics in Large White pigs with different live weights

Choi, Young Min; Nam, Kibok; Choe, Jae Gol; Ryu, Youn-Chul; Wick, Macdonald; Lee, K.; Kim, Byoung-Chul

doi:10.1016/j.livsci.2013.02.009

Cited by 25 publications

(33 citation statements)

References 42 publications

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“…Analysis at the protein level has revealed that the substitution of serine by a phenylalanine in SNP 473 would not affect its secondary and tertiary structures, confirming the lack of a significant association with meat quality traits. Carcass and meat quality could be affected by LW (Galián et al, 2009;Choi et al, 2013), which is what we found in SNP 387. The AA genotype of SNP 387 did not differ significantly from the GA genotype for most of the traits, indicating a dominant effect of the A allele.…”

Section: Discussionsupporting

confidence: 75%

Association between FTO polymorphism in exon 3 with carcass and meat quality traits in crossbred ducks

et al. 2015

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ABSTRACT. The fat mass and obesity-associated gene (FTO) is an excellent candidate gene that affects energy metabolism. Single nucleotide polymorphisms (SNPs) in FTO are associated with carcass and meat quality traits in pigs, cattle, and rabbits. The aim of this study was to investigate the association between novel SNPs in the FTO coding region and carcass and meat quality traits in 95 crossbred ducks, using DNA sequencing. We found two transitions G/A (SNP 387 and 473) within exon 3. SNP 387 was a synonymous mutation, whereas SNP 473 was a missense mutation. Association analysis suggested that SNP g.387G>A was significantly associated with all of the carcass traits measured, the intramuscular fat content (IMF), cooking yield (CY), pH values 45 min after slaughter (pH45m), drip losses from the breast muscle, and the leg muscle (P < 0.05). For SNP g.473G>A, the genotype AA exhibited greater leg muscle weight than the genotypes GG or AG (P < 0.05). The D value suggested that the two SNPs exhibited strong linkage disequilibrium. Three haplotypes (G 1 G 2 , G 1 A 2 , and A 1 A 2 ) were significantly associated with IMF, CY, the a* value, and all of the carcass traits measured (P < 0.05). The results suggest W. Gan et al. 6700©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 14 (2): 6699-6714 (2015) that FTO is a candidate locus that affects carcass and meat quality traits in ducks.

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Section: Discussionsupporting

confidence: 75%

Association between FTO polymorphism in exon 3 with carcass and meat quality traits in crossbred ducks

et al. 2015

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“…A smaller area of muscle fibres is generally found in smaller rabbit breeds and it can be associated with higher meat tenderness. For example, Gondret et al (2002) or Choi et al (2013) concluded that increase of the muscle fibres CSA is correlated with live weight. Likewise, Larzul et al (2005) and Lefaucher (2010) stated that the increasing size of muscle fibres is due to selection of rabbits for growth and live weight.…”

Section: Resultsmentioning

confidence: 99%

Effect of housing system and genotype on rabbit meat quality

Chodová¹,

Tůmová²,

Martinec³

et al. 2014

CZECH J ANIM SCI

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ABSTRACT:The effect of the housing system on the carcass characteristics, physical parameters of meat quality, fatty acid composition, and muscle fibre characteristics was studied in some Czech breeds. Ninety-six rabbits from seven different breeds of Czech genetic resources (Moravian Blue, Czech White, Czech Solver, Czech Spotted, Moravian White of Brown Eye, Czech Gold, and Czech Black Guard Hair) and one rabbit commercial hybrid (Hyplus), kept in two housing systems: intensive system (wire-net cages) or alternative (straw-bedded pen), were slaughtered at the age of 91 days. Alternatively housed rabbits had lower weight at slaughter, lower weight of loin, of hind legs meat, and of renal fat than rabbits from cages. The interactions between housing system and genotype were reflected significantly in pH value, and lightness and yellowness of biceps femoris. The highest (P ≤ 0.047) pH was observed in Hyplus (6.68) from cages, while the lowest value was noted in Moravian White of Brown Eye (6.26). The significantly (P ≤ 0.010) lightest meat was detected in Czech Solver (60.93) and the darkest in Czech Gold (47.81). Alternatively reared rabbits showed significantly (P ≤ 0.001) lower monounsaturated fatty acids (MUFA) (26.63%) and higher (P ≤ 0.001) polyunsaturated fatty acids (PUFA) (36.73%) contents than rabbits from cages (36.94% MUFA and 26.23% PUFA). The alternatively housed group had also higher n-3 and n-6 PUFA contents and higher PUFA : SFA ratio than the intensively housed one. Significant interactions (P ≤ 0.001) were observed in cross sectional area (CSA), diameter, and perimeter of muscle fibres of type I. The largest (P ≤ 0.001) CSA of type I muscle fibre had Czech Black Guard Hair from cages (2573.1 μm 2 ), while in pens this breed exhibited the smallest CSA (1219.6 μm 2 ), diameter (38.68 μm), and perimeter (130.2 μm). Fibre type distribution was not affected by any of the monitored parameters. The effect of interactions of the housing system and genotype was manifested mainly in physical and muscle fibre characteristics.

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“…In this study, the HW quail line had The importance of muscle fiber hypertrophy more than twice the BW (P , 0.001) and the pectoralis major muscle weight was three times heavier (P , 0.001) than the RBC quail line because of the results of selection. Skeletal muscle is composed of muscle fibers, thus muscle mass is determined by the number and size of muscle fibers (Rehfeldt et al, 2008;Choi et al, 2013a). Both the number and size of fibers are influenced by different breeds and selection for greater muscle growth as shown in the chicken (Remignon et al, 1995), turkey (Cherel et al, 1994) and quail (Fowler et al, 1980).…”

Section: Discussionmentioning

confidence: 99%

Muscle fiber characteristics of pectoralis major muscle as related to muscle mass in different Japanese quail lines

Choi

Shin

Wick

et al. 2013

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The objectives of this study were to investigate the muscle fiber characteristics of the pectoralis major muscle, and its relation to growth performance in the random bred control (RBC) and heavy weight (HW) Japanese quail lines at 42 days of age. The HW line had greater body (232.0 v. 100.2 g, P , 0.001) and pectoralis major muscle (19.0 v. 6.2 g, P , 0.001) weights than the RBC line. Color differences were observed between the superficial and deep regions of the pectoralis major muscle, with the superficial region showing a higher value of lightness than the deep region of the RBC or HW lines (P , 0.001). The percentage of the superficial region in the pectoralis major muscle was higher in the HW line compared with the RBC line (46.2% v. 38.0%, P 5 0.017). There were no significant differences in the total fiber number in the superficial and deep regions between the two quail lines (P 5 0.718). The HW quail line showed a larger mean fiber cross-sectional area (CSA; 375.5 v. 176.6 mm 2 , P , 0.001) and type IIA fiber CSA (243.7 v. 131.9 mm 2 , P , 0.001) than the RBC quail line. The HW line also had greater CSA percentage (60.2% v. 34.2%, P , 0.001) and number percentage (41.6% v. 14.2%, P , 0.001) of type IIB fibers, although there were no significant differences in type IIB fiber CSA between the RBC and HW lines (P 5 0.219). Therefore, greater body and muscle weights of the HW line are caused by differences in muscle fiber characteristics, especially the proportion of type IIB fiber and the CSA of type IIA fiber, compared with the RBC line. The results of this study suggest that muscle fiber hypertrophy has more impact on body and muscle weights of the different quail lines than muscle fiber hyperplasia.

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Growth, carcass, fiber type, and meat quality characteristics in Large White pigs with different live weights

Cited by 25 publications

References 42 publications

Association between FTO polymorphism in exon 3 with carcass and meat quality traits in crossbred ducks

Association between FTO polymorphism in exon 3 with carcass and meat quality traits in crossbred ducks

Effect of housing system and genotype on rabbit meat quality

Muscle fiber characteristics of pectoralis major muscle as related to muscle mass in different Japanese quail lines

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