Research Article

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05/24/2019

A DdeI polymorphism in the growth hormone gene is associated with higher lean meat yield and pH 45 min in postmortem pigs

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
12/31/2019

Gene expression analysis by RNA-sequencing of Longissimus dorsi muscle of pigs fed diets with differing lipid contents

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
08/19/2015

Expression of genes coding for selected amino acid transporters in small intestine, liver, and skeletal muscle of pigs fed excess branched-chain amino acids

Amino acid transporter; Branched-chain amino acid; Gene expression; Pigs

Excess Leu reduces the availability of Ile and Val in pigs likely by reducing absorption of the latter amino acids (AA). Twenty-four crossbred pigs were used to evaluate the effect of excess Leu alone or with surplus Ile and Val on the expression of cationic (b0,+AT and CAT1) and neutral (B0AT1) AA transporters in the small intestine, liver, and skeletal ... more

M. Cervantes; N. Arce; H. García; M. Cota; J.K. Htoo; A. Morales
08/19/2016

Developmental expression of LTβR and differential expression in Escherichia coli F18 resistant/sensitive piglets

E. coli F18; LTβR gene; mRNA; Pigs

We analyzed LTβR mRNA expression in piglets from birth to weaning and compared the differential expression between Escherichia coli F18-resistant and sensitive populations to determine whether this gene could be used as a genetic marker for E. coli F18 resistance. Sutai piglets of different age groups (8, 18, 30, and 35 days; N = 4 each) and ... more

R.W. Xia; L. Sun; W.Y. Qin; L.N. Gan; W.B. Bao; S.L. Wu; R.W. Xia; L. Sun; W.Y. Qin; L.N. Gan; W.B. Bao; S.L. Wu
07/31/2015

Novel SNPs in the growth arrest and DNA damage-inducible protein 45 alpha gene (GADD45A) associated with meat quality traits in Berkshire pigs

Growth arrest and DNA-damage-inducible protein 45 alpha gene; meat quality; Pig; Single nucleotide polymorphism

This study was conducted to evaluate the porcine gene GADD45A (growth arrest and DNA-damage-inducible protein 45 alpha) as a positional candidate controlling quantitative trait loci (QTL) for meat quality traits on chromosome 6 (SSC6). Four exons of the porcine GADD45A gene were defined from cDNA and BAC clone sequences. A total of 4 single nucleotide ... more

E.S. Cho; K.T. Lee; J.W. Choi; H.J. Jeon; S.W. Lee; Y.M. Cho; T.H. Kim
11/23/2015

Association between ADSL, GARS-AIRS-GART, DGAT1, and DECR1 expression levels and pork meat quality traits

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

X.D. Zhang; S.J. Zhang; Y.Y. Ding; Y.F. Feng; H.Y. Zhu; L. Huang; T. Wu; J. Zhou; Z.J. Yin
11/13/2015

Effects of muscle fiber type on glycolytic potential and meat quality traits in different Tibetan pig muscles and their association with glycolysis-related gene expression

Glycolytic potential; meat quality; Mitochondria; Muscle fiber type; Tibetan pigs

The myosin heavy chain (MyHC) composition, glycolytic potential, mitochondrial content, and gene expression related to energy metabolism were analyzed in eight muscles from Tibetan pigs, to study how meat quality develops in different muscle tissues. The muscles were classified into three clusters, based on MyHC composition: masseter, trapezius, and latissimus dorsi ... more

L.Y. Shen; J. Luo; H.G. Lei; Y.Z. Jiang; L. Bai; M.Z. Li; G.Q. Tang; X.W. Li; S.H. Zhang; L. Zhu
10/19/2015

MC1R, KIT, IGF2, and NR6A1 as markers for genetic differentiation in Thai native, wild boars, and Duroc and Chinese Meishan pigs

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

P. Klomtong; K. Chaweewan; Y. Phasuk; M. Duangjinda
03/04/2016

Expression of MMP-1, -2, and -8 in longissimus dorsi muscle and their relationship with meat quality traits in cattle

Matrix metalloproteinases; meat quality; Muscle development; Nanyang cattle

The extracellular matrix (ECM) is the major macromolecule in skeletal muscle, which affects meat quality greatly. The remodeling of the ECM is mainly regulated by matrix metalloproteinases (MMPs). The expression patterns of MMP-1, -2, and -8 in longissimus dorsi muscle were explored using quantitative real-time polymerase chain reaction. The results show that the expression of MMP-1, -2 ... more

Y.X. Qi; X.H. Zhang; Y.Q. Wang; Y.Z. Pang; Z.B. Zhang; T.L. Zhang; Z.X. Zhang; Y.X. Qi; X.H. Zhang; Y.Q. Wang; Y.Z. Pang; Z.B. Zhang; T.L. Zhang; Z.X. Zhang