Growth performance and fatty acid profiles of intramuscular and subcutaneous fat from Limousin and Charolais heifers fed extruded linseed

Bartoň, L.; Marounek, M.; Kudrna, V.; Bureš, Daniel; Zahrádková, R.

doi:10.1016/j.meatsci.2007.01.005

Cited by 67 publications

(60 citation statements)

References 25 publications

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“…This is in agreement with the results of our previous studies, in which we compared CH and Limousin heifers (Bartoň et al, 2007b) and CH :1n-7 + C18:1n-9 + C18:1n-7 + C18:1n-11t k PUFA = PUFA n-3 + PUFA n-6 l PUFA n-6 = C18:2n-6 + C20:3n-6 + C20:4n-6 + C22:4n-6 m PUFA n-3 = C18:3n-3 + C20:5n-3 + C22:5n-3 + C22:6n-3…”

Section: Discussionsupporting

confidence: 94%

Meat quality and fatty acid profile of the musculus longissimus lumborum in Czech Fleckvieh, Charolais and Charolais × Czech Fleckvieh bulls fed different types of silages

Bartoň¹,

Bureš²,

Kudrna³

2010

CZECH J ANIM SCI

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ABSTRACT:The effects of breed and diet containing different types of silages on meat quality parameters and fatty acid profile of m. longissimus lumborum (MLL) were evaluated in a total of 30 Czech Fleckvieh (CF), Charolais (CH) and Charolais × Czech Fleckvieh (CH × CF) bulls. The animals were fed two mixed diets: MS (based on maize silage) and LCS (based on legume-cereal mixture silage and lucerne silages) with different concentrations of dietary energy and fatty acids. The MLL from CH bulls had the lowest content of dry matter (P < 0.01), less protein (P < 0.01) and lighter meat (P < 0.01) compared to the CF. The extensive LCS diet reduced dry matter (P < 0.01) and intramuscular fat (P < 0.01) and increased the content of hydroxyproline (P < 0.05). The CH bulls exhibited higher PUFA n-3 (P < 0.05) and lower MUFA (P < 0.05) compared to the CF, with the CH × CF being intermediate. The LCS diet enhanced the proportions of PUFA (P < 0.05) and PUFA n-3 (P < 0.001) and reduced MUFA (P < 0.001). In conclusion, both breed and diet affected the meat quality and fatty acid profile of the intramuscular fat of the bulls. The replacement of maize silage with the legume-cereal mixture and lucerne silages in the diet reduced the concentration of intramuscular fat and improved its fatty acid profile from the human nutrition perspective.

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Section: Discussionsupporting

confidence: 94%

Meat quality and fatty acid profile of the musculus longissimus lumborum in Czech Fleckvieh, Charolais and Charolais × Czech Fleckvieh bulls fed different types of silages

Bartoň¹,

Bureš²,

Kudrna³

2010

CZECH J ANIM SCI

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“…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%

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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“…This undesirable fatty acid ratio is a risk factor for the development of vascular and coronary diseases (Barton et al, 2007). There has been an increased interest in recent years for manipulating the fatty acid composition of meat Scollan et al, 2014) with modifications of livestock diets being one of the most important strategies.…”

Section: Introductionmentioning

confidence: 99%

Effects of whole linseed and rumen-protected conjugated linoleic acid enriched diets on beef quality

Barahona

Olleta

Albertı́

et al. 2016

animal

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Instrumental assessments and sensory tests were performed to evaluate the effects of diet and postmortem ageing time (1, 7 and 21 days) on beef quality. A total of 48 Friesian calves were randomly allocated to four dietary treatments: control, whole linseed (10% linseed), conjugated linoleic acid (CLA) (2% protected CLA), and whole linseed + CLA (10% linseed and 2% protected CLA). Animals were slaughtered at 458 ± 16.6 kg live weight and 11 months of age. Ageing was more significant than diet on most instrumental parameters. Meat from linseed enriched diets had greater drip loss ( P ⩽ 0.001) and intramuscular fat ( P ⩽ 0.01) than meat from animals fed CLA. Beef aged for 7 and 21 days had lower cooking losses ( P ⩽ 0.01) and shear force ( P ⩽ 0.001) than beef aged for 1 day. Lightness was affected only by display time. The addition of CLA in the diet increased hue and yellowness, whereas the inclusion of linseed decreased these values, as well as increased redness. Linseed in the diet decreased fat odour ( P ⩽ 0.05), but increased beef ( P ⩽ 0.01) and liver ( P ⩽ 0.05) flavours. Meat aged for 21 days was significantly more rancid ( P ⩽ 0.001), even under vacuum storage. Several organoleptic properties were improved with the inclusion of linseed in the diet, whereas they remained unaffected by the inclusion of CLA.

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Growth performance and fatty acid profiles of intramuscular and subcutaneous fat from Limousin and Charolais heifers fed extruded linseed

Cited by 67 publications

References 25 publications

Meat quality and fatty acid profile of the musculus longissimus lumborum in Czech Fleckvieh, Charolais and Charolais × Czech Fleckvieh bulls fed different types of silages

Meat quality and fatty acid profile of the musculus longissimus lumborum in Czech Fleckvieh, Charolais and Charolais × Czech Fleckvieh bulls fed different types of silages

Linseed: a valuable feedstuff for ruminants

Effects of whole linseed and rumen-protected conjugated linoleic acid enriched diets on beef quality

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