Genotype x environment interactions for fatty acid profiles in Bos indicus and Bos taurus finished on pasture or grain

Bressan, Maria Cristina; Rossato, Lizandra Vercezi; Rodrigues, E. C.; Alves, Susana P.; Bessa, Rui J. B.; Ramos, Eduardo Mendes; Gama, L. T.

doi:10.2527/jas.2009-2672

Cited by 49 publications

(49 citation statements)

References 43 publications

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“…These results could be explained by genetic differences between the breeds related to de novo C15:0 and C17:0 syntheses from propionate in adipose tissue (Vlaeminck et al, 2006). Bressan et al (2011) have suggested that differences in gastrointestinal tract and rumen volume between breeds can influence the ruminal microbial ecosystem, which could also explain observations made in the current study. This appears to be confirmed by the different α-linolenic acid (C18:3n-3) and C18:0 proportions of GU compared with WF beef.…”

Section: Resultssupporting

confidence: 70%

“…The minimum PUFA/SFA ratio recommended for human health is 0.45 (Simopoulos, 2004), a value much higher than the mean value of 0.29 reported in this study. This inability to achieve the optimum PUFA/SFA ratio is well documented in both Bos taurus (Piasentier et al, 2009;Corazzin et al, 2012;Ripoll et al, 2014) and Bos indicus (Ruiz et al, 2005;Bressan et al, 2011) cattle owing to the extensive bio-hydrogenation of the dietary UFA by the rumen microorganisms. The atherogenic index, which is an indicator for the risk of cardiovascular disease, should be as low as possible.…”

Section: Resultsmentioning

confidence: 99%

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Fatty acid profile of zebu beef cattle from the Central African sub-region

Nfor¹,

Corazzin²,

Fonteh³

et al. 2014

SA J. An. Sci.

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This study analysed the meat fatty acid (FA) composition of three zebu breeds, Gudali (GU), White Fulani (WF) and Red Mbororo (RM), raised on savannah pasture and monitored in the commercial context of the Yaoundé abattoir. Samples of m. longissimus thoracis from 60 bulls belonging to the GU, WF and RM breeds were collected and analysed for fat and FA composition. The fat content of the meat was low, but similar across breeds (1.34 ± 0.912 g/100 g muscle, mean ± SD). Meat from the GU breed had higher C18:3n-3 and C22:5n-3 proportions and lower C18:0 and total saturated FA proportions than WF meat. Red Mbororo meat had an intermediate FA composition compared with the other breeds. The elongase and ∆9 desaturase indices were comparable among breeds. In summary, the results indicate that there are minimal differences in beef FA composition of the three breeds from the Central African sub-region. Additionally, based on the polyunsaturated FA (PUFA) proportion, 13.9% of the total lipids and n-6/n-3 PUFA ratio, 1.95, consumption of beef from these breeds could be beneficial to human health. This is possibly owing to the pasture feeding and low fat content of the beef.

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Section: Resultssupporting

confidence: 70%

Section: Resultsmentioning

confidence: 99%

Fatty acid profile of zebu beef cattle from the Central African sub-region

Nfor¹,

Corazzin²,

Fonteh³

et al. 2014

SA J. An. Sci.

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“…One of the few studies concerning the effect of castration age on the fatty acid profile of the beef found no changes in SFA content in the meat of Friesian bulls slaughtered at 12 months of age, or steers castrated at 15 days or five months of age (PRADO et al, 2014). Amount of SFA is directly associated with total fat of the carcass (WOOD et al, 2008), especially considering intramuscular fat (BRESSAN et al, 2011). The relationship between intramuscular fat and SFA content, however, was not observed in the present study, given that the amount of SFA in steer meat did not exceed that in bull meat, despite higher marbling.…”

Section: Resultscontrasting

confidence: 53%

Age castration of Nellore males on the profile of fatty acids of meat

Missio

Restle

Freitas

et al. 2017

SCA

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This study aimed to evaluate the cholesterol content, α-tocopherol and fatty acids in the meat of Nellore young bulls or steers castrated at different ages, 13 or 18 months. The animals were confined for 100 days and slaughtered at 22 months of age. The experimental design was completely randomized with three treatments, using 12 repetitions. The levels of palmitic acid (26.39%), stearic (24.39%), myristic (3.01%) and total saturated fatty acids were not altered by sexual condition or castration age. Oleic was the fatty acid with the highest average participation in the meat (34.54%), and lower content in the meat of young bulls in relation to the castrated. The content of total unsaturated fatty acids was lower in the young bulls in relation to castrated at 18 months, which did not differ from castrated at 12 months. The content of total polyunsaturated fatty acids was increased by elevation of the castration age, being similar between young bulls and castrated at 18 months. The ratio ω6/ω3 was not altered by sexual condition or castration age. Castration at the beginning of the finishing period increases the content of beneficial fatty acids to health in relation to castrated in the first third of backgrounding. Key words: Unsaturated fatty acids. Saturated fatty acids. Linoleic. Oleic. ResumoObjetivou-se avaliar o conteúdo de colesterol, α-tocoferol e ácidos graxos da carne de machos inteiros ou castrados em diferentes idades (13 ou 18 meses) da raça Nelore. Os animais foram confinados por 100 dias e abatidos com 22 meses de idade. O delineamento experimental utilizado foi o inteiramente casualizado com três tratamentos, utilizando-se 12 repetições. Os teores dos ácidos palmítico (26,39%), esteárico (24,39%), mirístico (3,01%) e ácidos graxos saturados totais não foram alterados pela condição sexual e/ou idade à castração. O oleico foi o ácido graxo com maior participação média na carne (34,54%), com menor participação na carne dos inteiros em relação aos castrados. O teor de ácidos graxos insaturados totais foi menor na carne dos inteiros em relação aos castrados com 18 meses, que não diferiram dos castrados aos 12 meses. O teor dos ácidos graxos poliinsaturados foi aumentado pela elevação da idade à castração, sendo similar entre inteiros e castrados aos 18 meses. A relação ω6/ ω3 não foi alterada pela condição sexual e/ou idade à castração. A castração no início do período de

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“…In this sense, Rossato et al [29] pointed out that Nelore beef is nutritionally healthier than Angus breed, once it has lower percentages of cholesterol and higher amounts of n−3 faty acids, CLA precursor (C18:1 trans). Bressan et al [30] showed that the production system has an important inluence on beef faty acid proile when compared animals from Bos taurus and Bos indicus breeds. The Bos taurus animals showed the lower percentage of saturated faty acids (SFA) and higher percentage for monounsaturated faty acids (MUFA) in relationship to indicine animals inished at the feedlot system.…”

Section: Meat Faty Acids Proile Variation Between and Within Beef Catmentioning

confidence: 99%

Genetic Factors that Determine the Meat Fatty Acids Composition

Lemos¹,

Pereira²,

Regatieri³

et al. 2017

Fatty Acids

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In relation the nutritional atributes of beef meat quality, the composition of faty acid is important not only because it afects the meat palatability, but also it can afect the human health. The faty acids harmful to human health have received atenuating atention in recent years. Some studies, with taurine breed, have shown that there is a genetic variation for the trait faty acid proile of the meat and, therefore, the possibility of genetic improvement of this trait in beef catle. Meantime, in zebu catle, the genetic parameter estimates for faty acid proile are scarce. Furthermore, the trait meat faty acid proile is something diicult and costly to measure and for this kind of trait is indicated the use of genomic selection, which is a type of marker-assisted selection. The objective of this chapter is showing the genetic variability of meat faty acid proile diferent catle breeds and makes an approach of the implement models and methods that use genomic information to improve the faty acid composition of beef meat.

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Genotype x environment interactions for fatty acid profiles in Bos indicus and Bos taurus finished on pasture or grain

Cited by 49 publications

References 43 publications

Fatty acid profile of zebu beef cattle from the Central African sub-region

Fatty acid profile of zebu beef cattle from the Central African sub-region

Age castration of Nellore males on the profile of fatty acids of meat

Genetic Factors that Determine the Meat Fatty Acids Composition

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