Research Article

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E.S. Cho; K.T. Lee; J.W. Choi; H.J. Jeon; S.W. Lee; Y.M. Cho; T.H. Kim
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ADSL; Intramuscular fat; Meat color; meat quality; Pig

In this study, meat quality traits were compared between Chinese lard- and European lean-type pigs. The association between expression of four genes (ADSL, GARS-AIRS-GART, DGAT1, and DECR1) and meat quality traits was also investigated. Meat quality traits were found to differ significantly between pig breeds. Meat color parameter values (a* and b*) and ... more

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Coat color; meat quality; Native pig breeds; PCR-RFLP; Vertebra number

Mutations in melanocortin 1 receptor (MC1R) gene and v-kit Hardy-Zuckerman 4 feline sarcoma viral oncogene homolog (KIT) gene have been shown to affect coat color patterns in pigs. Additional functional marker genes, such as insulin like growth factor-2 (IGF2) and orphan nuclear receptor, germ cell nuclear factor (NR6A1), have been described for ... more

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Carcass traits; Growth hormone; meat quality; Single nucleotide polymorphism; Swine

Marker-assisted selection has been widely used in breeding programs. The use of single nucleotide polymorphisms (SNPs) as genetic markers enables identification of genotypes that best contribute to quantitative characteristics. We evaluated a possible association between the DdeI growth hormone gene polymorphism and meat and carcass traits. A total of 476 halothane ... more

I.M. Ferreira; T.F. Braga; E.C. Guimarães; M.C. Durval; L.B. Mendes; J.S. Soares; D.L. Matarim; B.C. Kruger; M.M. Franco; R.C. Antunes
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Candidate genes; meat quality; Nutrigenomics; Skeletal muscle; Transcriptomic

We examined the effect of lipid content in the diet on the transcriptome of the Longissimus dorsi muscle in pigs. Our objective was to examine changes at the molecular level affecting economically relevant meat quality characteristics such as intramuscular fat deposition and fatty acid profile. The treatments consisted of isoproteic and isoenergetic diets ... more

M.C. Montenegro; P. Peraza; N. Balemian; C. Carballo; N. Barlocco; P.G. Barrios; B. Mernies; A. Saadoun; G. Castro; S.F. Guimarães; S. Llambí
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Gene association; Marbling score; meat quality; Pigs

The objective of this research was to identify candidate gene markers based on their function related to marbling score and meat quality traits in pigs. A total of 313 commercial pigs with five different Duroc (DR) breed fractions: 1 = 100%DR (n = 227), 2 = 50%DR x 50% Large white (LW)(n = 7), 3 = 50%DR x 50%Landrace (LR)(n = 41), 4 = 75%DR x 25%LW (n = 18), and 5 ... more

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Calpastatin; meat quality; Meat tenderness; Myostatin; PCR-SSCP

In Brazil, most sheep are of the Santa Inês breed, which shows rusticity in breeding and grazing systems, being able to offer better adaptation characteristics for animals with meat production ability, such as the Texel and Dorper sheep. They can also improve meat production in animals that have better characteristics for milk production, such as Lacaune and East ... more

C. Esteves; K.Gdo Livramento; L.V. Paiva; A.P. Peconick; I.F.F. Garcia; C.A.P. Garbossa; T.B. Cardoso; P.B. Faria
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Animals; Avian Proteins; Body weight; Breeding; Chickens; Female; Gene expression; Gene Expression Regulation; male; Muscle development; Myostatin; Organ Specificity; Phenotype; Quantitative trait loci

Myostatin (MSTN) is expressed in the myotome and developing skeletal muscles, and acts to regulate the number of muscle fibers. Wuding chicken large body, developed muscle, high disease resistance, and tender, delicious meat, and are not selected for fast growth. Broiler chickens (Avian broiler) are selected for fast growth and have a large body size and high muscle mass. Here, 240 one-day-old ... more

L.X. Liu; T.F. Dou; Q.H. Li; H. Rong; H.Q. Tong; Z.Q. Xu; Y. Huang; D.H. Gu; X.B. Chen; C.R. Ge; J.J. Jia
12/19/2016
3' Untranslated Regions; Animals; Cell differentiation; Cell proliferation; Cells, Cultured; Down-regulation; Gene Expression Regulation, Developmental; Microfilament Proteins; MicroRNAs; Muscle development; Muscle Proteins; Myoblasts; Swine

MicroRNAs (miRNAs) play important roles in the development and biochemical functions of skeletal muscles. However, targeting of miRNAs to structural genes involved in Z-discs have not been investigated. Here, we describe a highly expressed miRNA, miR-432, in pig embryonic skeletal muscle, which appeared to target myozenin1 (MYOZ1), a protein involved in the muscular sarcomere microstructure. ... more

R.M. Ren; H. Liu; S.H. Zhao; J.H. Cao