Genetic variation at the porcine MYF-5 gene locus. Lack of association with meat production traits

1999 ◽  
Vol 10 (2) ◽  
pp. 123-127 ◽  
Author(s):  
M.F.W. te Pas ◽  
F.L. Harders ◽  
A. Soumillion ◽  
L. Born ◽  
W. Buist ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Gene Locus ◽  
Meat Production ◽  
Production Traits

scholarly journals Dietary fat clearance is modulated by genetic variation in apolipoprotein A-IV gene locus

1998 ◽  
Vol 39 (12) ◽  
pp. 2493-2500 ◽  
Author(s):  
Maria A. Ostos ◽  
Jose Lopez-Miranda ◽  
Jose M. Ordovas ◽  
Carmen Marin ◽  
Angeles Blanco ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Dietary Fat ◽  
Gene Locus ◽  
Apolipoprotein A

Genetic variation in net feed efficiency in Hereford cattle and its association with other production traits

1999 ◽  
Vol 1999 ◽  
pp. 47-47
Author(s):  
R.M. Herd ◽  
S.C. Bishop
Keyword(s):  
Growth Rate ◽  
Genetic Variation ◽  
Feed Intake ◽  
Feed Efficiency ◽  
Genetic Correlations ◽  
Feed Consumption ◽  
Production Traits ◽  
Performance Measurements ◽  
Hereford Cattle ◽  
Rate Selection

Net feed efficiency refers to variation in feed consumption between animals net of requirements for maintenance and production, and may be measured as residual feed intake (RFI). Because RFI is independent of liveweight (LW) and growth rate, selection for improved net feed efficiency is likely to reduce feed intake with little change in growth. The purpose of this study was to establish whether there exists genetic variation in RFI in young British Hereford bulls, and to determine the phenotypic and genetic correlations of RFI with key production traits.The data consisted of performance measurements on 540 bull progeny of 154 British Hereford sires, collected over ten 200-day postweaning performance tests conducted between 1979 and 1988. The traits analysed were food intake (FI), 200 to 400-day daily gain (ADG), 400-day weight (W400), predicted carcass lean content (LEAN), lean growth rate (LGR), food conversion ratio (FI/ADG) and lean FCR (LFCR; FI/(ADG x LEAN), described by Bishop (1992).

scholarly journals Relationship of the bovine IGF1, TG, DGAT1 and MYF5 genes to meat colour, tenderness and cooking loss

2018 ◽  
Vol 69 (3) ◽  
pp. 1077 ◽  
Author(s):  
S. ARDICLI ◽  
H. SAMLI ◽  
D. DINCEL ◽  
B. EKIZ ◽  
H. YALCINTAN ◽  
...  
Keyword(s):  
Muscle Metabolism ◽  
Bovine Insulin ◽  
Cooking Loss ◽  
Farm Animals ◽  
Meat Production ◽  
Nucleotide Polymorphisms ◽  
Production Traits ◽  
Colour Parameters ◽  
Meat Colour ◽  
Meat Samples

Bovine insulin-like growth factor 1 (IGF1), thyroglobulin (TG), diacylglycerol-O-acyltransferase 1 (DGAT1) and myogenic factor 5 (MYF5) genes play an important role in the physiology of lipid and muscle metabolism and are therefore considered as candidate genes for meat production traits in farm animals. The objectives of this study were to investigate single nucleotide polymorphisms (SNPs) in IGF1, TG, DGAT1 and MYF5 genes and to evaluate whether these polymorphisms affected meat colour, tenderness and cooking loss in Holstein cattle. Initially, the SNPs were detected by polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP) method. Meat samples (N= 50) derived from M. longissimus thoracis et lumborum (LTL) were used in the current study. Significant differences in variations of meat colour parameters were observed at 24 hours post-mortem. IGF1 was associated with colour parameters of a* and chroma values. In addition, effects of TG were statistically significant on L* and a* values, while, effects of MYF5 were significant on a* value. There was no association of the tested SNPs with meat pH, tenderness and cooking loss. The results presented here may give the valuable information for improving meat colour in cattle.

scholarly journals Genetic polymorphism of candidate genes in pig meat production

2011 ◽  
pp. 37-40
Author(s):  
Zuzana Lieskovská ◽  
Anton Kováčik ◽  
Anna Trakovická
Keyword(s):  
Genetic Variation ◽  
Genetic Polymorphism ◽  
Candidate Genes ◽  
Fat Content ◽  
Meat Production ◽  
Lepr Gene ◽  
Pcr Rflp ◽  
Pig Meat

H-FABP, LEPR and MC5R genes were suggested as candidate genes for fat content in pig meat. The aim of this study was to detect genetic variation in the porcine H-FABP, LEPR and MC5R genes by PCR-RFLP method in a group of pigs. Genotyping of pigs was done by PCRRFLP methods. We identified three genotypes in the set of pigs, HH (0.504), Hh (0.412) and hh (0.084) for H-FABP (HinfI). Allele H showed higher frequency than allele h (0.710 vs. 0.290). Three genotypes were identified for the H-FABP (HaeIII) gene (DD - 0.194, Dd - 0.494, dd - 0.312). The allele D (0.441) showed slightly lower frequency than allele d (0.559). All three genotypes were identified for LEPR (HpaII) in the group of pigs (AA – 0.137, AB - 0.314, BB – 0.549). Higher frequency of LEPR gene was confirmed for allele B (0.706), as compared with allele A (0.294). We identified two genotypes for MC5R (BsaHI) in the group of pigs (AA - 0.348 and AG - 0.652), genotype GG was not found. As conforms with genotype structure, we recognize a higher frequency of allele A (0.674) as compared with allele G (0.326). 

scholarly journals Genetic variation at RYR1, IGF2, FUT1, MUC13, and KPL2 mutations affecting production traits in Chinese commercial pig breeds

2013 ◽  
Vol 58 (No. 2) ◽  
pp. 65-70 ◽  
Author(s):  
G.R. Ruan ◽  
Y.Y. Xing ◽  
Y. Fan ◽  
R.M. Qiao ◽  
X.F. He ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Production Traits ◽  
Large White ◽  
Low Frequencies ◽  
High Frequencies ◽  
E Coli ◽  
Resistant Lines ◽  
Defective Allele ◽  
Breeding Schemes ◽  
Combined Selection

The identification of causative mutations affecting economically important traits has benefited the worldwide pig industry. We investigated the genetic variation at five loci including RYR1, IGF2, FUT1, MUC13, and KPL2 affecting traits related to production, reproduction, and disease resistance in a sample of 8009 pigs representing 3 commercial breeds (Duroc, Landrace, and Large White) from 28 farms in China. We found that all breeds, especially Duroc pigs, have high frequencies of favourable alleles for lean production and stress resistance at the IGF2 and RYR1 loci. However, all breeds have low frequencies of the diarrhea-resistant allele of FUT1, indicating that multigenerational selection is required for E. coli F18<sup>+</sup> resistant pigs. No linkage disequilibrium was found between the RYR1 and FUT1 loci on pig chromosome 6, supporting the possibility of combined selection for both F18 and stress-resistant pigs. Relatively high frequencies (&gt; 0.5) of the MUC13 allele conferring resistance to E. coli F4ac were found in all three breeds with the highest frequency in Duroc pigs, suggesting that the breeders can establish F4ac diarrhea-resistant lines in a few generations. No defective allele at the KPL2 locus causing immotile short-tail sperms was found in Large White pigs of American, Canadian, Danish, English, and French origin, supporting the conclusion that the KPL2 defective allele is present exclusively in Finnish Large White pigs. These results provide useful information for pig breeding schemes in China.

A genetic analysis of wool and lamb production traits in Scottish Blackface Sheep

2002 ◽  
Vol 2002 ◽  
pp. 21-21
Author(s):  
A. Murphy ◽  
J. Conington
Keyword(s):  
Genetic Relationships ◽  
Carcass Traits ◽  
Direct Selection ◽  
Meat Production ◽  
Production Traits ◽  
Selection For ◽  
Wool Quality ◽  
Sheep Production ◽  
The Uk ◽  
The Impact

Scottish Blackface sheep have a multi-purpose role in the UK to produce breeding females and lambs for meat consumption. Over the last fifty years, wool has accounted for a very low proportion of economical return from hill sheep production in the UK. In recent years, the ratio of the value of lamb meat to wool clip has altered, with wool becoming relatively more important in particular for hill breeds. The consequence of direct selection for improved carcass traits in these breeds on wool quality is unknown. With other sheep breeds such as Merino, selection for improved wool traits has largely been undertaken with little regard to the impact on meat production. The objectives of this study are to quantify wool quality traits and examine genetic relationships between wool quality and carcass traits in Scottish Blackface sheep.

4.P.211 Dietary fat clearance in normal subjects is regulated by genetic variation in the apolipoprotein A-IV gene locus

1997 ◽  
Vol 134 (1-2) ◽  
pp. 340
Author(s):  
J. López-Miranda ◽  
J.M. Ordovas ◽  
A. Blanco ◽  
F. Fuentes ◽  
M.J. Velasco ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Dietary Fat ◽  
Gene Locus ◽  
Normal Subjects ◽  
Apolipoprotein A

scholarly journals Genome-Wide Association Studies for Growth and Meat Production Traits in Sheep

PLoS ONE ◽  
2013 ◽  
Vol 8 (6) ◽  
pp. e66569 ◽  
Author(s):  
Li Zhang ◽  
Jiasen Liu ◽  
Fuping Zhao ◽  
Hangxing Ren ◽  
Lingyang Xu ◽  
...  
Keyword(s):  
Association Studies ◽  
Genome Wide Association ◽  
Meat Production ◽  
Genome Wide Association Studies ◽  
Production Traits ◽  
Genome Wide
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