Extruded linseed and rapeseed both influenced fatty acid composition of total lipids and their polar and neutral fractions in longissimus thoracis and semitendinosus muscles of finishing Normand cows

Hăbeanu, Mihaela; Thomas, Agnès; Bispo, Esperanza; Gobert, Mylène; Gruffat, Dominique; Durand, Denys; Bauchart, Dominique

doi:10.1016/j.meatsci.2013.06.009

Cited by 26 publications

(22 citation statements)

References 62 publications

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“…Beef trans-18:1 FA comprise a significant amount of isomers other than trans-11, but few studies are available about the effect of linseeds on this pattern. With diets based on 30% straw and 70% concentrates, extruded linseed did not change the proportion of trans-11 (33%) but trans-12, -13, -14 and -15 increased at the expense of trans-9 and -10 (Habeanu et al, 2014).…”

Section: Linseed a Provider Of Omega-3 For Ruminantsmentioning

confidence: 87%

“…The increase in muscle 18:3 n-3 concentration is significantly higher with extruded linseeds than with rolled linseeds (Normand et al, 2005), and higher in ground or rolled linseeds than with whole linseeds (Maddock et al, 2006). The increase in 18:3 n-3 was higher in Longissimus thoracis than in Rectus abdominis and Semitendinosus in a trial by Mialon et al (2015), but this difference was not observed in trials by Normand et al (2005) and by Habeanu et al (2014). Despite elongation process, very long-chain FA are present in muscle in low proportions whatever the diet: less than 0.7 and 0.4% of total FA for DPA and EPA, respectively, and this proportion is either unchanged or moderately increased by linseed supply (Barton et al 2007;Corazzin et al, 2012;Habeanu et al, 2014;Herdmann et al, 2010;Mialon et al, 2015).…”

Section: Linseed a Provider Of Omega-3 For Ruminantsmentioning

confidence: 98%

“…Due to ruminal biohydrogenation, the proportion of 18:3 n-3 in percentage of total FA remains low. For example in Longissimus thoracis, it increases from 0.5 to 0.9-1.6% (Normand et al, 2005, 5 trials), from 0.4 to 1.9% (Mach et al, 2006), from 0.4 to 0.8% (Barton et al, 2007), from 0.6 to 2.0% (Herdmann et al, 2010), from 1.2 to 1.6% (Corazzin et al, 2012), from 0.4 to 0.6% (Habeanu et al, 2014), from 0.9 to 1.4% (Mialon et al, 2015). Differences in the extent of the increase depend more on the amount of added fat and their processing than on the duration of distribution before slaughter.…”

Section: Linseed a Provider Of Omega-3 For Ruminantsmentioning

confidence: 99%

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Linseed: a valuable feedstuff for ruminants

Doreau

Ferlay

2015

OCL

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-Linseeds are used in ruminant feeding for a long time, but this feedstuff knows now increasing interest. Linseeds are rich in alpha-linolenic acid, a fatty acid from the omega-3 series. Despite an extensive biohydrogenation of dietary alpha-linolenic acid in the rumen, its concentration in milk and beef meat increases with linseed incorporation in diets; this increase is accompanied by that of other fatty acids produced during biohydrogenation, especially conjugated linoleic acids and trans 18:1 fatty acids. The increase in cow fertility due to omega-3 fatty acids has not been demonstrated. Furthermore, linseed incorporation in ruminant diets is one of the most efficient ways to decrease enteric methane emissions. In addition to a global mitigating effect of all lipid sources on methane, linseeds have a specific effect due to changes in rumen microbial ecosystem. The practical use of linseeds in ruminant feeding at a large scale requires the absence of negative effect at any step of the ruminant production system. An excessive supply of lipids from linseeds can have deleterious effects on digestive efficiency, milk fat and protein content, beef susceptibility to oxidation, milk and beef fatty acid composition, but when linseed incorporation in the diet does not exceed ca. 3% of additional fat, only positive effects are remaining. A challenge is the increase in linseed cropping to meet increased needs for animal feeding.Keywords: Linseed / milk / beef / omega-3 fatty acids / methane Résumé -La graine de lin : un aliment de choix pour les ruminants. La graine de lin est utilisée depuis longtemps dans l'alimentation des ruminants, mais son emploi suscite un regain d'intérêt. Le lin est en effet riche en acide alpha-linolénique, un acide gras de la série des oméga 3. En dépit d'une biohydrogénation poussée dans le rumen, sa concentration dans le lait et la viande bovine est accrue lorsque la ration est enrichie en graines de lin ; cet accroissement va de pair avec celui d'autres acides gras intermédiaires de la biohydrogénation comme les acides gras monoinsaturés trans et les acides linoléiques conjugués. L'amélioration de la fertilité des vaches liée à cet apport d'oméga 3 n'a pas été démontrée. Par ailleurs, l'incorporation de lin dans la ration des ruminants est un des moyens efficaces pour réduire l'émission de méthane entérique. Outre un effet de toutes les sources de lipides pour réduire le méthane, le lin a un effet spécifique lié à son action sur le microbiote ruminal. L'utilisation de la graine de lin à grande échelle dans l'alimentation des bovins nécessite qu'il n'ait pas d'effet négatif à quelque niveau du système de production. Un apport excessif de lipides du lin peut diminuer la digestibilité de la ration, les taux butyreux et protéique du lait, modifier sensiblement la composition en acides gras du lait et de la viande, et augmenter la susceptibilité à l'oxydation des produits. Toutefois, lorsque l'incorporation de lipides du lin ne dépasse pas 3 % environ de la ration, seuls les effets pos...

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Section: Linseed a Provider Of Omega-3 For Ruminantsmentioning

confidence: 87%

Section: Linseed a Provider Of Omega-3 For Ruminantsmentioning

confidence: 98%

Section: Linseed a Provider Of Omega-3 For Ruminantsmentioning

confidence: 99%

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Linseed: a valuable feedstuff for ruminants

Doreau

Ferlay

2015

OCL

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“…Previous studies have shown that the LD and the ST muscle are oxido-glicolytic (Gentry et al, 2004;Chriki et al, 2012), varying by their fat content (Habeanu et al, 2014). In this study, the fat content of the LD (22.5%) and the ST (5.17%) muscles varied by 77%.…”

Section: Resultsmentioning

confidence: 64%

“…Carcass/meat fatty acids (FA) are key elements that control meat quality and have a primordial role in the nutritional feeding value of the meat (Wood et al, 2008). The effects of the flaxseed oil dietary lipids, with a rich concentration of n-3 fatty acids and of conjugated linoleic acids (CLA), beneficial to human health (Weiss et al, 2004;Habeanu et al, 2014), have received a great deal of public attention in recent years (Mahecha et al, 2009;Riediger et al, 2009). Various authors (Nuernberg et al, 2005;Habeanu et al, 2009) have illustrated the possibility of increasing the n-3 FA concentration in animal tissues by using dietary lipid sources such as fish oil, flaxseed oil and camelina oil.…”

Section: Introductionmentioning

confidence: 99%

Effects of dietary flaxseed oil on the muscle fatty acid composition in Mangalitsa pigs in an extensive rearing system

Hăbeanu¹,

Lefter²,

Gheorghe³

et al. 2014

SA J. An. Sci.

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The aim of this study was to investigate the effects of dietary flaxseed oil on the fatty acid (FA) composition of two types of muscles, longissimus dorsi (LD) and semitendinosus (ST), of Mangalitsa pigs reared in an extensive system. Fourteen Mangalitsa castrated pigs, 55 ± 8 kg, 240 ± 12 days of age, were randomly assigned for a 35-d experimental period to two isoenergetic and isonitrogenous diets, namely a control (C) diet, and an experimental (E) diet with the additional inclusion of 30 g flaxseed oil/kg. The fatty acid profiles of the flaxseed oil diet, flaxseed oil and the LD and ST muscles were determined by gas chromatography. The α-linolenic (ALA) fatty acid content of the flaxseed oil amounted to 41.88% of the total fatty acid methyl ester (FAME), resulting in an increased deposition of ALA in the LD muscle (2.07 times) and in the ST muscle (2.22 times) when compared with the control group. This effect is associated with the presence of eicosapentaenoic (EPA), docosapentaenoic (DPA) and docosahexaenoic (DHA) fatty acids, which are beneficial to the health of human beings. Additionally, the n-6 : n-3 ratio of the polyunsaturated fatty acids (PUFA) in the LD muscle (4.60 : 1 in the flaxseed diet, compared with 10.16 : 1 in the control diet) are very close to the n-6 : n-3 requirements (<5 : 1) of human. The results of this study indicated that flaxseed oil was a suitable nutritional solution to improving the fatty acid profile of specific muscles of indigenous Mangalitsa pigs. ______________________________________________________________________________

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What are the trans fatty acids issues in foods after discontinuation of industrially produced trans fats? Ruminant products, vegetable oils, and synthetic supplements

Aldai

Renobales

Barrón

et al. 2013

Euro J Lipid Sci & Tech

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Adverse health effect of trans fatty acids (TFAs) are well recognized , which has precipitated efforts to reduce their content in food products. With the decline of dietary TFAs derived from partial oil hydrogenation, interest is focused on the remaining sources of dietary TFAs derived from ruminants (rTFA), deo-dorized vegetable oils, trans isomerization during frying, and synthetic conjugated FA (CFA) supplements. Partial hydro-genation and heat-treated oils result in a random distribution of TFA isomers, whereas rTFAs contain specifi c isomers resulting from enzymatic processes. Reviews of human observational and metabolic intervention studies have suggested that consumption of rTFAs at current levels should not raise health concerns. However, these studies were not based on rTFA levels currently sold in retail markets. Current feeding practices of ruminants result in higher total TFAs with trans-18:1 isomers other than vaccenic acid, and many CFAs other than rumenic acid. The defi nition of TFA adopted by several countries does not distinguish among isolated TFAs of concern and ignores CFAs that should be included in total TFA due to their negative health effects. Accurate TFA defi nition establishment and nutritional assessment of individual TFA isomers is needed for labeling purposes. Also required are adoptions of analytical methods to resolve all TFA isomers. This information can then be used to construct a database and as a basis for meaningful recommendations. Practical applications: Areas that require further investigations have been identifi ed: 1) Establish a uniform TFA nomenclature based on chemical structure 2) Standardize, assess and normalize appropriate method-ologies for the analysis of TFAs 3) Synthesize pure reference standards for TFA identifi cation 4) Report individual TFA levels with different biological activities rather than total TFA content 5) Assess the nutritional characteristics of individual TFAs independent of their origin 6) Develop strategies to increase the content of desirable TFA isomers in ruminants 7) Identify potential bioactive trans metabolites produced from PUFAs in ruminants 8) Develop labeling regulations based on specifi c chemical structures and physiological effects regardless of their origin 9) Construct an accurate database complemented with spe-cifi c surveys of ruminant product FA composition that can be accessed by regulatory agencies to make appropriate TFA recommendations. The fi nal version of this Highlight Article was not available in time for inclusion in this special issue. For this reason only the abstract and graphical abstract are presented here. The full-text can be accessed online via the permanent link http://dx.

show abstract

Extruded linseed and rapeseed both influenced fatty acid composition of total lipids and their polar and neutral fractions in longissimus thoracis and semitendinosus muscles of finishing Normand cows

Cited by 26 publications

References 62 publications

Linseed: a valuable feedstuff for ruminants

Linseed: a valuable feedstuff for ruminants

Effects of dietary flaxseed oil on the muscle fatty acid composition in Mangalitsa pigs in an extensive rearing system

What are the trans fatty acids issues in foods after discontinuation of industrially produced trans fats? Ruminant products, vegetable oils, and synthetic supplements

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