Effect of fatty acid calcium salts from linseed oil on
the yield and n-3 fatty acid content of milk and on
blood plasma parameters of cows

Brzóska, F.

doi:10.22358/jafs/66906/2006

Cited by 12 publications

(15 citation statements)

References 21 publications

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“…The other linseed-containing supplement (CPLO) exerted a greater effect on total SFA, mainly due to the numerical decrease in SFA⩽14:0, which is in agreement with an earlier study involving supplementation of calcium salts of linseed oil (Brzóska, 2006). A similar effect in SFA⩽14:0 was observed in the present study when comparing Control with CPO.…”

Section: Discussionsupporting

confidence: 90%

Effect of oilseed type on milk fatty acid composition of individual cows, and also bulk tank milk fatty acid composition from commercial farms

Kliem

Humphries

Reynolds

et al. 2017

Animal

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Supplementing dairy cow diets with oilseed preparations has been shown to replace milk saturated fatty acids (SFA) with mono- and/or polyunsaturated fatty acids (MUFA, PUFA), which may reduce risk factors associated with cardio-metabolic diseases in humans consuming milk and dairy products. Previous studies demonstrating this are largely detailed, highly controlled experiments involving small numbers of animals, but in order to transfer this feeding strategy to commercial situations further studies are required involving whole herds varying in management practices. In experiment 1, three oilseed supplements (extruded linseed (EL), calcium salts of palm and linseed oil (CPLO) and milled rapeseed (MR)) were included in grass silage-based diets formulated to provide cows with ~350 g oil/day, and compared with a negative control (Control) diet containing no supplemental fat, and a positive control diet containing 350 g/cow per day oil as calcium salt of palm oil distillate (CPO). Diets were fed for 28-day periods in a 5×4 Latin Square design, and milk production, composition and fatty acid (FA) profile were analysed at the end of each period. Compared with Control, all lipid supplemented diets decreased milk fat SFA concentration by an average of 3.5 g/100 g FA, by replacement with both cis- and trans-MUFA/PUFA. Compared with CPO, only CPLO and MR resulted in lower milk SFA concentrations. In experiment 2, 24 commercial dairy farms (average herd size±SEM 191±19.3) from the south west of the United Kingdom were recruited and for a 1 month period asked to supplement their herd diets with either CPO, EL, CPLO or MR at the same inclusion level as the first study. Bulk tank milk was analysed weekly to determine FA concentration by Fourier Transform mid-IR spectroscopy prediction. After 4 weeks, EL, CPLO and MR all decreased herd milk SFA and increased MUFA to a similar extent (average −3.4 and +2.4 g/100 g FA, respectively) when compared with CPO. Differing responses observed between experiments 1 and 2 may be due in part to variations in farm management conditions (including basal diet) in experiment 2. This study demonstrates the importance of applying experimental research into commercial practice where variations in background conditions can augment different effects to those obtained under controlled conditions.

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Section: Discussionsupporting

confidence: 90%

Effect of oilseed type on milk fatty acid composition of individual cows, and also bulk tank milk fatty acid composition from commercial farms

Kliem

Humphries

Reynolds

et al. 2017

Animal

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“…Increasing the supply of n-3 fatty acids in the diet is one of the most important ways of improving the n-3 content of ruminant milk. Grass is a dietary source of n-3 fatty acids like linseed (Brzóska, 2006) and rapeseed (Kudrna and Marounek, 2006) oils in ruminant feeds. The distribution of n-6 and n-3 fatty acids was much better in the grazed goat group.…”

Section: Discussionmentioning

confidence: 99%

The effect of grazing on the composition of conjugated linoleic acid isomers and other fatty acids of milk and cheese in goats

Pajor¹,

Galló²,

Steiber³

et al. 2009

J. Anim. Feed Sci.

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The effect of grazing on the fatty acid profile of milk and cheese was evaluated on 20 goats divided into two groups. The goats in the first group were kept indoors and fed with lucerne hay, the goats from the second group were kept on a natural pasture. Utilization of native pasture has been on a low level (extensive) for years in order to avoid over-grazing of the grassland. The milk from grazed goats had significantly higher contents of fat, protein and total solids without fat (P<0.001) as well as lower lactose content than goats kept indoors (P<0.01). Grazing considerably increased the total conjugated linoleic acid content in milk (0.59 vs 0.77%; P<0.001) and cheese (0.52 vs 0.84%; P<0.01). The distribution of n-3 and n-6 was much better in the grazed goats, i.e. the values of series n-3 fatty acids were higher in milk (0.52 vs 0.69%; P<0.01) and cheese (0.64 vs 1.07%; P<0.01). In addition, the n-6/n-3 ratio was also more favourable in the grazed group (milk: 6.10 vs 3.44; cheese: 4.19 vs 2.51; P<0.01). It is concluded that the milk and cheese from goats kept on the natural pasture were better in terms of nutraceutical parameters, which are advantageous in human nutrition, than the milk produced by animals kept indoors and fed with hay.

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“…The experimental forage is a dietary source of n-3 fatty acids like linseed (Brzóska, 2006), rapeseed (Kudrna and Marounek, 2006) oils and marine lipids (Toral et al, 2010) in ruminant feeds. Increasing the supply of n-3 PUFA in the diet is one of the most essential ways of improving the n-3 content of goat and cow milk.…”

Section: Control Diet Experimental Dietmentioning

confidence: 99%

“…While n-6 enriched diet (such as sunflower) unmodified or increased the milk composition in both species (Dai et al, 2011;Martínez et al, 2012). Several studies investigated the effects of diet, such as green forages (Tsiplakou et al, 2006;Pajor et al, 2009) or oilseeds (Brzóska, 2006) on fatty acids, however, data on feeding micro-alga supplements are limited (mainly in dairy cows and ewes, such as Boeckaert et al, 2008;Papadopoulos et al, 2002 andToral et al, 2010, respectively). Spirulina platensis and Chlorella kessleri are freshwater micro-algae species.…”

Section: Introductionmentioning

confidence: 99%

Effect of micro-alga supplementation on goat and cow milk fatty acid composition

Póti¹,

Pajor

Bodnár

et al. 2015

Chilean J. Agric. Res.

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The microalgae cultivation has been developed over the last decades because it is capable of producing valuable metabolites, such as n-3 fatty acids for nutraceutical purposes. Aim of this study was to investigate the effect of the micro-alga as fat supplement on fatty acid profile of goat and cow milk, with particular reference to n-3 fatty acids and rumenic acid. Twenty dairy goats and 16 dairy cows were randomly allocated to two isonitrogenous treatment groups to investigate the effect of micro-alga supplementation on the composition and fatty acid profile of milk. The 1 st goat group was fed with alfalfa hay and concentrate; the 2 nd goat group received the same forages but the concentrate was supplemented with 10 g kg -1 DM intake micro-alga. The control group cows were fed with alfalfa hay, corn silage and concentrate, while the experimental animals were fed with the same forages but the concentrate was supplemented with 7.4 g kg -1 DM intake micro-alga. The experimental periods lasted for 17 d. The micro-alga supplements considerably increased rumenic acid concentration in milk (1.20% vs. 1.54%, P < 0.001 for goats; 0.75% vs. 0.85%, P < 0.05 for cows). The n-3 fatty acids were higher in milk (1.02 vs. 1.35; P < 0.001 for goats; 0.47 vs. 0.56; P < 0.05 for cows) and in addition the n-6/n-3 ratio was also more favorable in the micro-alga supplemented groups (3.53 vs. 2.88; P < 0.01 for goats; 4.18 vs. 3.36; P < 0.05 for cows). It is concluded that the diet with micro-alga supplementation significantly increased the concentration of beneficial fatty acids in both goat and cow milk.

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Effect of fatty acid calcium salts from linseed oil on the yield and n-3 fatty acid content of milk and on blood plasma parameters of cows

Cited by 12 publications

References 21 publications

Effect of oilseed type on milk fatty acid composition of individual cows, and also bulk tank milk fatty acid composition from commercial farms

Effect of oilseed type on milk fatty acid composition of individual cows, and also bulk tank milk fatty acid composition from commercial farms

The effect of grazing on the composition of conjugated linoleic acid isomers and other fatty acids of milk and cheese in goats

Effect of micro-alga supplementation on goat and cow milk fatty acid composition

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