The effect of cattle breed, season and type of diet on the fatty acid profile of raw milk

Hanuš, Oto; Křížová, Ludmila; Samková, Eva; Špička, Jiřı́; Kučera, Josef; Klimešová, Marcela; Roubal, Petr; Jedelská, Radoslava

doi:10.5194/aab-59-373-2016

Cited by 35 publications

(31 citation statements)

References 39 publications

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“…Fatty acid composition of milk in the present study is in accordance with results obtained by Hanuš et al (2016) for Holstein cows reared in a silage-based feeding system. In the present study, the most represented group of FAs in milk was SFAs, followed by MUFAs and PUFAs, which is consistent with the results of Stádník et al (2015).…”

Section: Discussionsupporting

confidence: 90%

Milk fatty acid composition as an indicator of energy status in Holstein dairy cows

et al. 2017

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Abstract. Transition dairy cows often enter a stage of negative energy balance during which the utilization of energy reserves is reflected in the milk fatty acid (FA) composition. In this study, metabolic status was evaluated by measuring milk FA, ruminal short-chain FA (RSCFA), and serum biochemical parameters in Holstein cows. Samples (milk, rumen contents, and blood) were collected around days 30 (early) and 150 (middle) of lactation, and rumen contents and blood samples were collected 30 days before calving (dry). Fatty acids were extracted and FA composition was determined. Glucose, triacylglycerols, total cholesterol, low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol (HDL-C), beta-hydroxybutyric acid (BHB), and non-esterified fatty acid (NEFA) concentrations were determined in serum samples. Lower percentages of saturated FA in milk and higher percentages of monounsaturated FA, polyunsaturated FA, and C18:1n-9 were observed in early lactation compared to mid-lactation. In rumen higher concentrations of propionic acid were determined at mid-lactation compared to early lactation. Acetic and butyric acid concentrations showed no significant differences between sampling intervals. In serum higher glucose concentrations were observed during the dry period and mid-lactation than during early lactation. Lower BHB and higher NEFA concentrations were noted during early lactation compared to mid-lactation and the dry period. Total cholesterol, LDL-C, HDL-C and triacylglycerols showed no significant differences between sampling intervals. The results of the present study suggest that determination of milk FA is a potential indicator of energy status in dairy cows.

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Section: Discussionsupporting

confidence: 90%

Milk fatty acid composition as an indicator of energy status in Holstein dairy cows

et al. 2017

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“…In sheep yogurts, the content of CLA was significantly lower (P<0.05) than in milk. According to literature data, the level of CLA in milk fat depends mainly on the feeding period, but also on lactation period, breed, and individual determinants of animals (Kelsey et al, 2003;Grega et al, 2005;Ellis et al, 2006;Mel'uchová et al, 2008;Tsiplakou et al, 2008;Zunong et al, 2008;Hanuš et al, 2016).…”

Section: Resultsmentioning

confidence: 99%

Health-promoting value of cow, sheep and goat milk and yogurts

2019

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The purpose of the presented study was to determine the fatty acid composition, health lipid indices content and selected micro and macronutrients in cow, sheep and goat milk and yogurts produced there of. Fatty acid composition was determined by the GC-FID method using a 100-m capillary column with CP Sil 88 phase. Microelements (iron, zinc, copper and manganese) and macroelements (magnesium and calcium) were analysed using flame atomic absorption spectrometry, whereas sodium and potassium were determined by the emission method. Phosphorus was analysed by the colorimetric method. The conducted study demonstrated that sheep, cow and goat milks and yogurts were characterized by different contents of fatty acids, micro- and macroelements. Sheep milk and yogurts could be regarded as richer sources of polyunsaturated fatty acids (PUFA), (4.41 and 4.35 % of total fatty acids, respectively), n-3 fatty acids (1.05 % of total fatty acids). These samples also had lower n6/n3 ratio (1.93 and 1.92, respectively) and the lowest value index of Thrombogenicity (TI) in comparison to the other analyzed milk and yogurt samples. In turn, goat milk and yogurts were characterized by the highest content of short-chain fatty acids (SCFA), (18.07 and 18.17 % of total fatty acids, respectively) the lowest content of saturated fatty acids (SFA), (54.62 and 54.93 %, respectively) and the lowest value index of Atherogenicity (AI) (2.79 and 2.84, respectively). Concentrations of all analyzed microand macroelements were significantly (P<0.05) higher in yogurts than in milk samples used for their production. Goat yogurts contained higher concentrations of copper, iron, and potassium compared to sheep and cow yogurts. In turn, sheep yogurts had more zinc, magnesium, calcium, and phosphorus than the other analyzed yogurt samples.

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“…The pasture grazed cow's milk is characterized by higher PUFAs and MUFAs concentrations, and lower SFAs concentrations comparing to concentrate feeding. Nutrition is the most important factor affecting the composition of FA in milk (Hanus et al, 2016). Breed, lactation phase and individual variations of cows are the most frequently studied factors that are often observed in combination with other factors (Samková et al, 2018).…”

Section: Researchmentioning

confidence: 99%

Effect of phenological phase of dry grazing pasture on fatty acid composition of cows’ milk

Radonjić

Djordjević

Marković

et al. 2019

Chil. j. agric. res.

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The fatty acid content is a very important feature of the milk that affects the health of consumers. The aim of this study was to estimate cow's milk fatty acid composition in early vegetative, late vegetative and reproductive phase, with the simultaneous determination of the pasture biomass chemical and botanical composition. The research was conducted on Agrostis castellana semi-natural dry grassland in the vicinity of Podgorica, Montenegro. Cows were put to grazing during the whole experimental period. This pasture was assessed as moderate to good quality and botanically diversified. The chemical composition of the grassland biomass changed with the maturity phase. A significant increase in the content of DM, crude fiber, fat and a decrease in crude protein content were determined throughout three phenological phases (p < 0.05). The content of total milk fat did not show significant variability during first two phases, but it did in the third phase. The content of milk fat and protein was high in all phases, although it is a dry pasture with a poor quality of biomass in the third phase. The content of majority saturated fatty acids (SFAs) increased with grass maturity, while total content of monounsaturated fatty acids (MUFAs) decreased. The polyunsaturated fatty acids (PUFAs) content kept the same level up to the reproductive phase. The phenological phase significantly influenced the content of fatty acids in the third phase (p < 0.05). A notable number of SFAs, MUFAs end PUFAs had the highest content in the second phase.

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The effect of cattle breed, season and type of diet on the fatty acid profile of raw milk

Cited by 35 publications

References 39 publications

Milk fatty acid composition as an indicator of energy status in Holstein dairy cows

Milk fatty acid composition as an indicator of energy status in Holstein dairy cows

Health-promoting value of cow, sheep and goat milk and yogurts

Effect of phenological phase of dry grazing pasture on fatty acid composition of cows’ milk

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The effect of cattle breed, season and type of diet on the fatty acid profile of raw milk

Cited by 35 publications

References 39 publications

Milk fatty acid composition as an indicator of energy status in Holstein dairy cows

Milk fatty acid composition as an indicator of energy status in Holstein dairy cows

Health-promoting value of cow, sheep and goat milk and yogurts

Effect of phenological phase of dry grazing pasture on fatty acid composition of cows&#8217; milk

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Effect of phenological phase of dry grazing pasture on fatty acid composition of cows’ milk