Correlation between porcine CAST gene polymorphism with muscle fiber histological traits and carcass characteristics

2007 ◽  
Vol 29 (01) ◽  
pp. 65 ◽  
Author(s):  
Yan-Qun WU
2015 ◽  
Vol 38 (3) ◽  
pp. 145-149
Author(s):  
R. Putri ◽  
R. Priyanto ◽  
A. Gunawan ◽  
Jakaria Jakaria

Author(s):  
Jun Yan Bai ◽  
Xiao Ping Jia ◽  
Jun Hao Lu ◽  
Shuai Yang ◽  
You Zhi Pang ◽  
...  

Quail is extensively reared in China for characteristic of quick growth, small fodder consumption, early sexual maturity, high egg output and short production period. In this study, the SNP markers in 5’ regulation regions of cytogenin gene (MyoG) among China yellow quail, Beijing white quail and Korean quail were detected by PCR-SSCP method. Moreover, correlations of MyoG 5’ regulation regions with carcass characteristics of quail were analyzed. Results demonstrated thatin egg quail group, six genotypes were detected in Locus A in the control region of MyoG 5’, including AA, BB, CC, AB, AC and BC. The highest frequencies of CC in China yellow quail, Beijing white quail and Korean quail were 0.323, 0.366 and 0.444, respectively. A total of 9 genotypes were detected in locus B in egg quail group, which were AA, BB, CC, DD, EE, AB, AC, AD and AE. AA showed the highest frequency in China yellow quail, Beijing white quail and Korean quail, which were 0.493, 0.385 and 0.406, respectively. There was significant correlation between locus A and leg muscle rate of egg quail (plessthan0.05). Locus B presented significant correlations with carcass net weight, leg muscle weight, dressing percentage, whole net carcass rate and heart rate (plessthan0.05). Loci A and B in the control region of MyoG 5’ can be used as the molecular marker of carcass characteristics of egg quails during marker assisted selection.


1966 ◽  
Vol 46 (3) ◽  
pp. 139-148 ◽  
Author(s):  
J. A. Vesely ◽  
H. F. Peters

Average daily gains of Suffolk, Targhee, Columbia, Rambouillet, and Romnelet wether lambs in three 75-day tests were: 0.20, 0.18, 0.16, 0.15, and 0.13 kg. The average carcass weights were: Suffolk, 26.0; Targhee, 23.0; Columbia, 21.5; Rambouillet, 21.7; and Romnelet, 20.9 kg. Only Columbias graded lower (P < 0.01) in carcass score than Suffolks. Single lambs had significantly (P < 0.01) higher carcass grades than twins. Preweaning environmental variables such as age of dam, type of rearing, and creep feeding on range did not affect postweaning gain in the feedlot.Breed differences were small in carcass measurements and weights of wholesale cuts as determined on constant weight basis. The most typical conformation characteristics of the Suffolk carcass, in relation to the other breeds, were: shorter body and hind leg, shallower chest, wider hips, and larger circumference of hind leg. Carcass weight was the most important source of variation in the carcass measurements and weights of wholesale cuts.Breed differences in tenderness, muscle fiber thickness, and amount of fat deposited throughout the muscle were small.


Author(s):  
L. Skorykh ◽  
I. Fominova ◽  
E. Surzhikova ◽  
D. Kovalenko

At present, modern technologies involving the use of DNA markers, which are widely used in national breeding programs in a number of countries with developed animal husbandry are of considerable interest and have a signifi cant infl uence on improving productivity traits. A signifi cant number of genes associated with meat productivity and meat quality have been identifi ed. In sheep breeding such research has been developed only recently. Due to the growing interest in the production of young mutton and lamb, priority is given to the study of genes that control meat productivity. However, the most popular are genetic markers that are interconnected with candidate genes, whose protein products play a signifi cant role in the formation or regulation of physiological and biochemical processes. Alleles of the Growth Hormone (GH) gene and Calpastatin (CAST) gene are considered as potential markers of sheep meat productivity. In this regard, the purpose of this work was to study the polymorphism of GH and CAST genes in crossbred wool-and-meat producing sheep (1/2 Poll Dorset × 1/2 North Caucasian wool-and-meat producing breed) bred in the Stavropol Territory. The analysis of Somatotropin and Calpastatin gene polymorphism was performed by PCR-PDRF. When studying GH gene polymorphism, the genotypes AA, AB and BB have been found, the frequency of occurrence of which was 29,7; 42,8 and 27,5 %, respectively. Allele A prevailed in the studied animals – 0,786, allele B was – 0,214. The CAST gene was represented by two genotypes MM and MN (the NN genotype was absent in the animals of this group) with a frequency of 87,9 and 12,1 %, respectively. The frequency of the M allele was high at 0,94, while the n allele was low at 0,06. The results obtained during the researches indicate the establishment of a variety of allelic variants of Somatotropin and Calpastatin genes in wool-and-meat producing sheep. Further research will be aimed at studying the association of identifi ed polymorphisms with economically useful traits.


Meat Science ◽  
2010 ◽  
Vol 85 (3) ◽  
pp. 379-384 ◽  
Author(s):  
J.M. Gonzalez ◽  
S.E. Johnson ◽  
A.M. Stelzleni ◽  
T.A. Thrift ◽  
J.D. Savell ◽  
...  

Meat Science ◽  
2019 ◽  
Vol 154 ◽  
pp. 69-74 ◽  
Author(s):  
M. Greguła-Kania ◽  
T.M. Gruszecki ◽  
A. Junkuszew ◽  
E. Juszczuk-Kubiak ◽  
M. Florek

Genetika ◽  
2014 ◽  
Vol 46 (1) ◽  
pp. 149-158
Author(s):  
Eva Kluzakova ◽  
Roman Stupka ◽  
Michal Sprysl ◽  
Jaroslav Citek ◽  
Monika Okrouhla

The aim of this study was to perform the CAST gene polymorphism genotyping and to verify its possible influence on the quantitative and qualitative indicators characterizing carcass value in pigs. The study found a significant effect of the CAST gene on carcass value. In the case of alelle A present in the CAST/HinfI gene there was a higher lean meat share (i.e. lower fat content) and therefore the detected quality of pork meat was lower. The significant differences were found between the homozygotes AA and heterozygotes AB, mainly in the amount of fat content (P?0.05). Concerning the CAST/MspI gene, it was found that genotype CD caused higher lean meat share due to the higher shares of muscles in the main meat parts. However higher lean meat share does lead to lower quality of the meat. Another discovered influence was that of the allele D, which was associated with the intramuscular fat content (IMF) in the neck (P?0.05). Our results also show signifiant influence (P?0.05) of the allele C on the qualitative indicators of pork meat (MS EC50). Concerning the CAST/RsaI polymorphism, the study proved that this polymorphism doesn?t influence any of the monitored qualitative parameters.


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