Effect of marine algae supplementation on the fatty acid profile of milk of dairy goats kept indoor and on pasture

Pajor, F.; Egerszegi, István; Steiber, O.; Bodnár, Ákos; Póti, P.

doi:10.22358/jafs/109955/2019

Cited by 27 publications

(28 citation statements)

References 31 publications

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“…Lack of significance of milk fat and protein content may be due to the low amount of supplemented marine algae (10 g/head/day). This corresponds with previous reports, where marine algae diet contains daily 105 g/head/day for dairy cows [29], and 15g/head/day for dairy goats [8].…”

Section: Discussionsupporting

confidence: 92%

“…In the present study, the mean DHA value in the MA group increased fatty acids up to 0.38 g/100 g from 0.04 g/100 of fatty acids; the difference is more than ninefold. Toral et al [45] and Pajor et al [8] also found that feeding marine algae supplements considerably increased the DHA content in milk. In the present study, the mean values of DHA transfer efficiency in marine algae treatments at 21 and 35 days were 7.97% and 11.73%, respectively.…”

Section: Discussionmentioning

confidence: 96%

“…Presently, the recommended eicosapentaenoic acid (EPA) + docosahexaenoic acid (DHA) daily intake for adults is 250 mg by the European Food Safety Authority (EFSA) Panel on Dietetic Products, Nutrition, and Allergies [7]. The marine algae inclusion in animals' diet has significantly increased the DHA concentration in milk [8,9]. However, some studies reported that a ruminant diet enriched with marine algae (e.g., Schizochytrium limacinum) resulted in decreased dry matter intake, milk yield, and milk fat depression in dairy animals [10,11].…”

Section: Introductionmentioning

confidence: 99%

“…However, some studies reported that a ruminant diet enriched with marine algae (e.g., Schizochytrium limacinum) resulted in decreased dry matter intake, milk yield, and milk fat depression in dairy animals [10,11]. Moreover, authors reported that marine algae feeding has a negative effect on rumen viability, typically decreasing the mass of protozoa and cellulolytic bacteria, and concentrations of odd-chain fatty acids (OCFAs) in milk; these fatty acids are good indicators of ruminal fermentation [4,8,12].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Marine Algae Supplementation on Somatic Cell Count, Prevalence of Udder Pathogens, and Fatty Acid Profile of Dairy Goats’ Milk

Pajor

Egerszegi

Szűcs

et al. 2021

Animals

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The aim of this study was to evaluate the effect of the Schizochytrium limacinum marine algae on the milk composition and fatty acid profile, somatic cell count, and prevalence of pathogen bacteria in the raw milk of multiparous Alpine goats. Twenty-eight dairy goats were randomly allocated to two groups: control group (C)—fed with 1500 g alfalfa hay and 600 g concentrate; experimental group (MA)—received the same forages and concentrate supplemented with 10 g/head/day marine algae. The goats were housed indoors, while the experiment lasted five weeks, and the milk samples were taken every week. Marine algae feeding had no negative effect on milk composition. The marine algae inclusion significantly decreased the milk somatic cell count and the presence of udder pathogens in the MA group. Mean somatic cell count and presence of udder pathogens were 5.73 log cells/mL and 31%, respectively, in the C group, while these values were 5.34 log cells/mL and 10%, respectively, in the MA group. The marine algae supplementation significantly increased DHA and rumenic acid concentration in the milk of the MA group (0.32 and 0.99 g/100 g of fatty acids, respectively) compared to the C group (0.04 and 0.65 g/100 g of fatty acids, respectively). It can be concluded that a diet supplemented with marine algae significantly improves the udder health of goats and the concentrations of health-promoting fatty acids in milk.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Marine Algae Supplementation on Somatic Cell Count, Prevalence of Udder Pathogens, and Fatty Acid Profile of Dairy Goats’ Milk

Pajor

Egerszegi

Szűcs

et al. 2021

Animals

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“…To counteract this effect, some experiments have been performed to increase the n-3 fatty acid content offering fresh forage-based diets [10] or by implementing grazing feeding systems [3,4,11] to ruminants. Besides, the incorporation of seeds, microalgae [12], fish [13], and seed oil’s [14,15,16,17] supplements in the diet, has positively impacted n-3 fatty acid content of ruminants’ milk.…”

Section: Introductionmentioning

confidence: 99%

Goats’ Feeding Supplementation with Acacia farnesiana Pods and Their Relationship with Milk Composition: Fatty Acids, Polyphenols, and Antioxidant Activity

Delgadillo-Puga

Cuchillo-Hilario

León-Ortiz

et al. 2019

Animals

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Simple SummaryThe study aimed to describe the fatty acids, polyphenols, and antioxidant activity of goat’s milk from five different feeding systems: Grazing; conventional diet; and conventional diet supplemented with 10, 20, and 30 percent of Acacia farnesiana pods. Conventional diet showed the highest content of polyunsaturated fatty acids while grazing showed the healthiest fatty acid profile. Similarly, grazing and A. farnesiana boosted the polyphenol content. A. farnesiana pod meal inclusion in the goats’ diets increased the selective presence of bioactive compounds and the antioxidant activity of goat’s milk while cholesterol content was reduced.AbstractBackground: Research efforts have focused on the evaluation of the bioactive quality of animal products (milk, cheese, meat, and other by-products) contrasting various feeding strategies coming from different ecological zones. The study aimed to describe the fatty acids (FA), polyphenols (P), bioactive compounds (BC), and antioxidant activity (AA) of goat’s milk. Methods: Dairy goats were fed with five systems: (1) Grazing; (2) conventional diet (CD); (3) CD + 10% of Acacia farnesiana (AF) pods; (4) CD + 20% AF; and (5) CD + 30% AF. The fatty acid profile, health promoting and thrombogenic indexes were calculated. Milk extracts were evaluated by HPLC to determent phenolic compounds (gallic, caffeic, chlorogenic, and ferulic acids, catechin, epicatechin, and quercetin). Antioxidant activity of goat’s milk extract was evaluated using 2,2-diphenyl-1-picrylhydrazyl radical (DPPH•), oxygen radical absorbance capacity (ORAC), and the ferric reducing antioxidant power (FRAP) assays. Results: Conventional diet showed the highest content of polyunsaturated fatty acids while grazing showed the best n-6:n-3 and the linoleic:alpha linolenic acid ratio. Similarly, grazing and AF boosted the polyphenol content. Conclusions: Acacia farnesiana inclusion in the goats’ diets increased the presence of bioactive compounds and the antioxidant activity while diminishing the cholesterol content of goat’s milk.

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Fatty acids of microalgae: diversity and applications

Maltsev

Maltseva

2021

Rev Environ Sci Biotechnol

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Effect of marine algae supplementation on the fatty acid profile of milk of dairy goats kept indoor and on pasture

Cited by 27 publications

References 31 publications

Effect of Marine Algae Supplementation on Somatic Cell Count, Prevalence of Udder Pathogens, and Fatty Acid Profile of Dairy Goats’ Milk

Effect of Marine Algae Supplementation on Somatic Cell Count, Prevalence of Udder Pathogens, and Fatty Acid Profile of Dairy Goats’ Milk

Goats’ Feeding Supplementation with Acacia farnesiana Pods and Their Relationship with Milk Composition: Fatty Acids, Polyphenols, and Antioxidant Activity

Fatty acids of microalgae: diversity and applications

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