Quantitative carcass traits of Holstein calves, finished in different systems and slaughter weights

Paris, Wagner; Santos, Priscila Vincenzi dos; Menezes, Luis Fernando Glaszenapp de; Kuss, Fernando; Silveira, Magali Floriano da; Boito, Bruna; Venturini, Tiago; Stanqueviski, Fernanda

doi:10.1590/0103-8478cr20141178

Cited by 3 publications

(3 citation statements)

References 9 publications

(12 reference statements)

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“…The fact that the animals in the present study were not castrated may have contributed to this decrease in performance and fat deposition because the heavier animals were approximately 11 to 12 months old during the last 60 days of feedlot, and already exhibited signs of puberty (restlessness and aggression). The decrease in fat thickness with SW in young animals was corroborated by Paris et al (2015). Fat thickness is important to protect the carcasses from the harmful effects of intense and sudden cooling to which carcasses are subjected in slaughterhouses.…”

Section: Discussionmentioning

confidence: 82%

Slaughter body weights of Jersey young bulls finished on feedlot

Stanqueviski

Silveira

Missio

et al. 2020

Revista Brasileira De Zootecnia

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Section: Discussionmentioning

confidence: 82%

Slaughter body weights of Jersey young bulls finished on feedlot

Stanqueviski

Silveira

Missio

et al. 2020

Revista Brasileira De Zootecnia

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“…In several studies ‘trimming loss’ is mentioned to affect overall value of a beef carcass and net loss of weight and product yield. In most cases, trimming losses are linked to superficial bruises on live animals and carcasses ( Strappini et al., 2009 ; Paris et al., 2015 ; Eastwood et al., 2017 ; Kline et al., 2020 ). We focused on trimming loss caused by subsurface health observations affecting revenue of CDC similarly to carcass weight.…”

Section: Discussionmentioning

confidence: 99%

Associations of carcass weight and trimming loss with cull dairy cow health observations collected at slaughter.

Vlemminx

Bouwknegt

Urlings

et al. 2023

Veterinary and Animal Science

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“…The genetic of this breed has an influence in almost 50% of the country cattle population while surplus males from dairy farms supply up to 70% of local meat production (Navarro y Goic, 2003). However, the carcass and meat quality are lower in comparison to other meat breeds, mainly as a result of poor backfat deposition and lower marbling, resulting in reduced overall carcass value (Choi et al, 2000;Paris et al, 2015). Among the factors which regulate fat deposition in cattle, genetics plays a major role (Jeong et al, 2012).…”

Section: Abstract: Bos Taurus Adipose Tissue Enzyme Activity Fattmentioning

confidence: 99%

A Non-Synonymous Single Nucleotide Polymorphism in FASN Gene Alters FASN Enzyme Activity in Subcutaneous and Intramuscular Adipose Tissue in Holstein Friesian Steers

Cancino-Baier

Muñoz

Quiñones

et al. 2021

Annals of Animal Science

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The FASN enzyme plays a key role in fatty acids synthesis as the main long-chain fatty acid synthesizer. A non-synonymous SNP (single nucleotide polymorphism) (g.17925A>G) located in the thioesterase domain of this enzyme and an effect in fat deposition has been observed, but has not been evaluated in this breed and, moreover, the reason whereby this occurs remains unclear. The objective of this study was to evaluate the effect of this SNP on the activity of FASN enzyme in subcutaneous and intramuscular adipose tissue from Holstein Friesian steers. To achieve this, 196 animals were sampled in a local abattoir, genotyped for the FASN g.17924A>G SNP and characterized for fatty acid profile. Then a sub sample of 20 animals per genotype were selected to extract the total protein from subcutaneous and intramuscular adipose tissue to estimate the FASN enzyme activity. The FASN activity for each genotyped animal was assessed indirectly by measuring the decrease in the absorbance of NADPH at 340 nm by spectrophotometry in a 24 well plate in the presence of Acetyl-CoA, Malonyl-CoA, and NADPH. To assess the impact of SNP induced amino acid changes in FASN protein structure, in-silico simulations were performed. Our results indicated that FASN g.17924A>G SNP induces a change in the enzyme activity in subcutaneous adipose tissue, which is higher when the AA genotype is present and lower in the presence of the AG genotype. The in-silico analysis of the amino acid substitution shows that there was a structural change in the dimeric form of the protein between genotypes. Moreover, the global energy between subunits is lower and more favorable when the AA genotype is present and higher and less favorable for the AG genotype. It was also found that the fatty acid profile of subcutaneous adipose tissue was affected when the AG genotype was present, decreasing the C16:0 fatty acid levels and increasing the C18:0 fatty acid levels. The FASN g.17924A>G SNP alters the FASN enzyme structure and activity, leading to a variation in the fatty acid composition of subcutaneous adipose tissue in Holstein Friesian steers. Implications: This SNP could be considered as a tool to improve the fat deposition or marbling and the fatty acid profile in cattle.

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Quantitative carcass traits of Holstein calves, finished in different systems and slaughter weights

Abstract: ABSTRACT

Cited by 3 publications

References 9 publications

Slaughter body weights of Jersey young bulls finished on feedlot

Slaughter body weights of Jersey young bulls finished on feedlot

Associations of carcass weight and trimming loss with cull dairy cow health observations collected at slaughter.

A Non-Synonymous Single Nucleotide Polymorphism in FASN Gene Alters FASN Enzyme Activity in Subcutaneous and Intramuscular Adipose Tissue in Holstein Friesian Steers

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