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Influence of conjugated linoleic acids and vitamin E on milk fatty acid composition and concentrations of vitamin A and α-tocopherol in blood and milk of dairy cows.
J Anim Physiol Anim Nutr (Berl). 2018 Feb; 102(1):e431-e441.JA

Abstract

The objective of this trial was to investigate the influences of conjugated linoleic acid (CLA) and vitamin E (Vit. E) and their interactions on fatty acid composition and vitamins in milk (α-tocopherol, retinol and β-carotene) as well as on α-tocopherol in blood of pluriparous cows from week 6 ante partum until week 10 post-partum (p.p.). We assigned 59 pluriparous German Holstein cows to four treatment groups with the treatment factors CLA and Vit. E at two levels in a 2 × 2 factorial design. Milk fatty acid composition and milk vitamins were analysed on lactation days 7 and 28. α-tocopherol in blood serum was analysed on days -42, -7, 1, 7, 14, 28 and 70 relative to parturition. Milk concentration of α-tocopherol was influenced by Vit. E (p < .001) and CLA (p = .034). Percentage of cis-9, trans-11 CLA in total milk fat was influenced by treatment with CLA (p < .001), while for percentage of trans-10, cis-12 CLA an interaction between treatment and day (p = .019), driven by an increase in both CLA groups from day 7 to day 28, was found. Serum ratios of α-tocopherol to cholesterol were influenced by Vit. E (p < .001). Results suggest that treatment with CLA during late pregnancy and early lactation is suitable to enhance the proportion of trans-10, cis-12 CLA in milk and thereby influencing nutritional properties. As treatment with Vit. E did not have an impact on milk fatty acid composition, it might be possible to increase the antioxidative capacity of the dairy cow without affecting milk properties. Consequently, combined treatment with CLA and Vit. E might elicit synergistic effects on the cow and milk quality by increasing the proportion of CLA in milk fat as well as the excretion of Vit. E and the Vit. E levels in serum.

Authors+Show Affiliations

Institute of Animal Nutrition, Federal Research Institute for Animal Health, Friedrich-Loeffler-Institut, Braunschweig, Germany.Institute of Animal Nutrition, Federal Research Institute for Animal Health, Friedrich-Loeffler-Institut, Braunschweig, Germany.Institute of Animal Nutrition, Federal Research Institute for Animal Health, Friedrich-Loeffler-Institut, Braunschweig, Germany.Institute of Animal Nutrition, Federal Research Institute for Animal Health, Friedrich-Loeffler-Institut, Braunschweig, Germany.Institute of Animal Nutrition, Federal Research Institute for Animal Health, Friedrich-Loeffler-Institut, Braunschweig, Germany.Department of Animal Nutrition and Nutritional Physiology, Justus-Liebig-University, Gieβen, Germany.Department of Animal Nutrition and Nutritional Physiology, Justus-Liebig-University, Gieβen, Germany.BASF SE, Lampertheim, Germany.BASF SE, Lampertheim, Germany.Institute of Agricultural and Nutritional Sciences, Group Animal Nutrition, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.Institute of Animal Nutrition, Federal Research Institute for Animal Health, Friedrich-Loeffler-Institut, Braunschweig, Germany.

Pub Type(s)

Controlled Clinical Trial
Journal Article

Language

eng

PubMed ID

28815782

Citation

Schäfers, S, et al. "Influence of Conjugated Linoleic Acids and Vitamin E On Milk Fatty Acid Composition and Concentrations of Vitamin a and Α-tocopherol in Blood and Milk of Dairy Cows." Journal of Animal Physiology and Animal Nutrition, vol. 102, no. 1, 2018, pp. e431-e441.
Schäfers S, Meyer U, von Soosten D, et al. Influence of conjugated linoleic acids and vitamin E on milk fatty acid composition and concentrations of vitamin A and α-tocopherol in blood and milk of dairy cows. J Anim Physiol Anim Nutr (Berl). 2018;102(1):e431-e441.
Schäfers, S., Meyer, U., von Soosten, D., Hüther, L., Drong, C., Eder, K., Most, E., Tröscher, A., Pelletier, W., Zeyner, A., & Dänicke, S. (2018). Influence of conjugated linoleic acids and vitamin E on milk fatty acid composition and concentrations of vitamin A and α-tocopherol in blood and milk of dairy cows. Journal of Animal Physiology and Animal Nutrition, 102(1), e431-e441. https://doi.org/10.1111/jpn.12762
Schäfers S, et al. Influence of Conjugated Linoleic Acids and Vitamin E On Milk Fatty Acid Composition and Concentrations of Vitamin a and Α-tocopherol in Blood and Milk of Dairy Cows. J Anim Physiol Anim Nutr (Berl). 2018;102(1):e431-e441. PubMed PMID: 28815782.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Influence of conjugated linoleic acids and vitamin E on milk fatty acid composition and concentrations of vitamin A and α-tocopherol in blood and milk of dairy cows. AU - Schäfers,S, AU - Meyer,U, AU - von Soosten,D, AU - Hüther,L, AU - Drong,C, AU - Eder,K, AU - Most,E, AU - Tröscher,A, AU - Pelletier,W, AU - Zeyner,A, AU - Dänicke,S, Y1 - 2017/08/16/ PY - 2017/02/02/received PY - 2017/05/14/accepted PY - 2017/8/18/pubmed PY - 2018/8/22/medline PY - 2017/8/18/entrez KW - conjugated linoleic acid KW - dairy cow KW - milk fatty acids KW - vitamin A KW - vitamin E SP - e431 EP - e441 JF - Journal of animal physiology and animal nutrition JO - J Anim Physiol Anim Nutr (Berl) VL - 102 IS - 1 N2 - The objective of this trial was to investigate the influences of conjugated linoleic acid (CLA) and vitamin E (Vit. E) and their interactions on fatty acid composition and vitamins in milk (α-tocopherol, retinol and β-carotene) as well as on α-tocopherol in blood of pluriparous cows from week 6 ante partum until week 10 post-partum (p.p.). We assigned 59 pluriparous German Holstein cows to four treatment groups with the treatment factors CLA and Vit. E at two levels in a 2 × 2 factorial design. Milk fatty acid composition and milk vitamins were analysed on lactation days 7 and 28. α-tocopherol in blood serum was analysed on days -42, -7, 1, 7, 14, 28 and 70 relative to parturition. Milk concentration of α-tocopherol was influenced by Vit. E (p < .001) and CLA (p = .034). Percentage of cis-9, trans-11 CLA in total milk fat was influenced by treatment with CLA (p < .001), while for percentage of trans-10, cis-12 CLA an interaction between treatment and day (p = .019), driven by an increase in both CLA groups from day 7 to day 28, was found. Serum ratios of α-tocopherol to cholesterol were influenced by Vit. E (p < .001). Results suggest that treatment with CLA during late pregnancy and early lactation is suitable to enhance the proportion of trans-10, cis-12 CLA in milk and thereby influencing nutritional properties. As treatment with Vit. E did not have an impact on milk fatty acid composition, it might be possible to increase the antioxidative capacity of the dairy cow without affecting milk properties. Consequently, combined treatment with CLA and Vit. E might elicit synergistic effects on the cow and milk quality by increasing the proportion of CLA in milk fat as well as the excretion of Vit. E and the Vit. E levels in serum. SN - 1439-0396 UR - https://www.unboundmedicine.com/medline/citation/28815782/Influence_of_conjugated_linoleic_acids_and_vitamin_E_on_milk_fatty_acid_composition_and_concentrations_of_vitamin_A_and_α_tocopherol_in_blood_and_milk_of_dairy_cows_ L2 - https://doi.org/10.1111/jpn.12762 DB - PRIME DP - Unbound Medicine ER -