COMPARAISON DE DIVERSES METHODES DE CASTRATION ET DE STERILISATION DES AGNEAUX: II. INFLUENCE SUR LA CARCASSE

1971 ◽  
Vol 51 (3) ◽  
pp. 591-599
Author(s):  
J. M. BAILLARGEON ◽  
J. P. LEMAY ◽  
W. B. HOLTMANN ◽  
L. A. CHARETTE

An experiment was undertaken to study the effect of various physical and chemical methods of castrating and sterilizing lambs at 15 and 60 days of age on the classification, tenderness, flavor and several physical and chemical measurements of the carcass. The effects of breed and sex were also investigated. Based on the official grading system, females and completely or partially castrated males produced superior carcasses when compared with non-castrated males. No significant differences were observed among treatments, age of treatment, sex and breeds, for tenderness and flavor. However, there was a preference for the carcasses of partially castrated lambs. Treatment and sex had a highly significant effect on the chemical composition of the carcasses. The meat from non-castrated and partially castrated lambs contained more water and protein but less external and intramuscular fat than meat from females and castrated males. No significant differences were observed among the treatments, age at treatment, sex and breeds for loin-eye area, melting point of the fat and pH of the "longissimus dorsi" muscle.

2018 ◽  
Vol 98 (3) ◽  
pp. 597-602
Author(s):  
E.G. Miller ◽  
L. Huber ◽  
C.L. Levesque ◽  
C.F.M. de Lange

Physical and chemical body composition of gilts and parity 3 sows were used to determine current prediction equation accuracy and propose alternative prediction equations that incorporate additional variables. Longissimus dorsi muscle depth and parity can be combined with body weight and backfat to improve gilt and sow body composition prediction.


Data in Brief ◽  
2018 ◽  
Vol 19 ◽  
pp. 1314-1317 ◽  
Author(s):  
Mirele D. Poleti ◽  
Luciana C.A. Regitano ◽  
Gustavo H.M.F. Souza ◽  
Aline S.M. Cesar ◽  
Rosineide C. Simas ◽  
...  

Gene ◽  
2014 ◽  
Vol 542 (2) ◽  
pp. 168-172 ◽  
Author(s):  
Zhi Liu ◽  
Wenxing Sun ◽  
Yongyan Zhao ◽  
Chunying Xu ◽  
Yingying Fu ◽  
...  

Animals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1616
Author(s):  
Ligang Wang ◽  
Jingna Li ◽  
Xinhua Hou ◽  
Hua Yan ◽  
Longchao Zhang ◽  
...  

Intramuscular fat (IMF) is essential for improving the palatability and flavor of meat, and it is strongly associated with human insulin resistance. RNA editing is a widespread regulating event in different tissues. Here, we investigated the global RNA editing difference of two groups of pig with different IMF contents to find the potential editing sites affecting IMF. In this research, RES-Scanner and REDItools were used to identify RNA editing sites based on the whole genome and transcriptome sequencing data of the high and low groups composed of three full-sib pairs with opposite IMF phenotypes. A total of 295 RNA editing sites were investigated in the longissimus dorsi muscle, and 90.17% of these sites caused A to G conversion. After annotation, most editing sites were located in noncoding regions (including five sites located on the 3′ UTR regions). Five editing sites (including two sites that could lead to nonsynonymous amino acid changes) were located in the exons of genes. A total of 36 intergroup (high and low IMF) differential RNA editing sites were found in 33 genes. Some candidate editing sites, such as sites in acyl-coenzymeA: cholesterol acyltransferase 1 (ACAT1), coatomer protein, subunit alpha (COPA), and nuclear receptor coactivator 3 (NCOA3), were selected as candidate RNA editing sites associated with IMF. One site located on the 3′ UTR region of growth hormone secretagogue receptor (GHSR) may regulate GHSR expression by affecting the interaction of miRNA and mRNA. In conclusion, we identified a total of 36 nonredundant RNA editing sites in the longissimus dorsi muscle, which may reveal the potential importance of RNA editing in IMF. Four were selected as candidate sites associated with IMF. Our findings provide some new insights of RNA editing function in pig longissimus dorsi muscle which useful for pig IMF breeding or human insulin resistances research.


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