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Inclusion of Sunflower Oil in the Bovine Diet Improves Milk Nutritional Profile

Milk and its derivatives are important foods that contribute to daily nutrient requirements and improve consumers’ health. This study evaluated the effects of supplementing the diet of lactating dairy cows with sunflower oil (SFO), selenium, and vitamin E on the milk’s fatty acid profile and fat oxi...

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Autores principales: Salles, Márcia S. V., D’Abreu, Léa F., Júnior, Luiz Carlos R., César, Marcelo C., Guimarães, Judite G. L., Segura, Julio G., Rodrigues, Cintia, Zanetti, Marcus A., Pfrimer, Karina, Netto, Arlindo Saran
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6412345/
https://www.ncbi.nlm.nih.gov/pubmed/30823572
http://dx.doi.org/10.3390/nu11020481
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author Salles, Márcia S. V.
D’Abreu, Léa F.
Júnior, Luiz Carlos R.
César, Marcelo C.
Guimarães, Judite G. L.
Segura, Julio G.
Rodrigues, Cintia
Zanetti, Marcus A.
Pfrimer, Karina
Netto, Arlindo Saran
author_facet Salles, Márcia S. V.
D’Abreu, Léa F.
Júnior, Luiz Carlos R.
César, Marcelo C.
Guimarães, Judite G. L.
Segura, Julio G.
Rodrigues, Cintia
Zanetti, Marcus A.
Pfrimer, Karina
Netto, Arlindo Saran
author_sort Salles, Márcia S. V.
collection PubMed
description Milk and its derivatives are important foods that contribute to daily nutrient requirements and improve consumers’ health. This study evaluated the effects of supplementing the diet of lactating dairy cows with sunflower oil (SFO), selenium, and vitamin E on the milk’s fatty acid profile and fat oxidative stability as well as the acceptability of the milk by consumers. For this purpose, 32 Jersey dairy cows were allocated to four treatment groups for 60 days, as follows: C (control diet); A (3.5 mg/kg DM (dry matter) organic selenium + 2000 IU vitamin E/cow per day); O (4% SFO DM); OA (equal doses of A and O treatments). The inclusion of SFO decreased the contents of 10:0, 10:1, 11:0, 12:0, 12:1, 14:0, and 9c-14:1 fatty acids as well as odd- and branched-chain fatty acids (13:0, iso 13:0, anteiso 13:0, 15:0, iso 15:0, and 17:0). There was also a tendency for 8:0 and 16:0 fatty acid concentrations to decrease when SFO was included in the cows´ diet. SFO decreased the concentration of 10:0 to 15:0 fatty acids in milk. The sum of the conjugated linoleic acids (CLAs), conjugated alpha-linolenic acid intermediates (CLnAs; 18:3 ω6 + 18:3 ω3), and 22:0 fatty acids in milk tended to increase, and there were significant increases in 18:0 and 9c11t-18:2 with SFO. In terms of the effects of SFO on the health-related lipid indices, the atherogenicity index tended to decrease and h/H tended to increase. When cows were supplemented with antioxidants, the concentration of 20:2 fatty acids decreased, the 6 + 7 + 8 + 9t-18:1, 16t-18:1, 20:0, 22:2, and 24:0 fatty acid concentrations increased, and there was a trend for the 22:1 ω9 fatty acid concentration to increase with antioxidants plus oil. There was a tendency for ω6 fatty acids and ω6/ω3 to increase with milk treated with antioxidants plus oil. The oxidative stability of milk was not influenced by the presence of SFO or antioxidants in the diet of dairy cows. Consumers desired the color and mouthfeel of the milk that was treated with SFO. Cows fed with 4% sunflower oil produced milk with an improved fatty acid profile for human nutrition, containing a higher CLA content and an improved ratio of hypocholesterolemic and hypercholesterolemic fatty acids, without increasing the milk’s susceptibility to oxidation. The milk was also rated as being more acceptable by consumers.
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spelling pubmed-64123452019-03-29 Inclusion of Sunflower Oil in the Bovine Diet Improves Milk Nutritional Profile Salles, Márcia S. V. D’Abreu, Léa F. Júnior, Luiz Carlos R. César, Marcelo C. Guimarães, Judite G. L. Segura, Julio G. Rodrigues, Cintia Zanetti, Marcus A. Pfrimer, Karina Netto, Arlindo Saran Nutrients Article Milk and its derivatives are important foods that contribute to daily nutrient requirements and improve consumers’ health. This study evaluated the effects of supplementing the diet of lactating dairy cows with sunflower oil (SFO), selenium, and vitamin E on the milk’s fatty acid profile and fat oxidative stability as well as the acceptability of the milk by consumers. For this purpose, 32 Jersey dairy cows were allocated to four treatment groups for 60 days, as follows: C (control diet); A (3.5 mg/kg DM (dry matter) organic selenium + 2000 IU vitamin E/cow per day); O (4% SFO DM); OA (equal doses of A and O treatments). The inclusion of SFO decreased the contents of 10:0, 10:1, 11:0, 12:0, 12:1, 14:0, and 9c-14:1 fatty acids as well as odd- and branched-chain fatty acids (13:0, iso 13:0, anteiso 13:0, 15:0, iso 15:0, and 17:0). There was also a tendency for 8:0 and 16:0 fatty acid concentrations to decrease when SFO was included in the cows´ diet. SFO decreased the concentration of 10:0 to 15:0 fatty acids in milk. The sum of the conjugated linoleic acids (CLAs), conjugated alpha-linolenic acid intermediates (CLnAs; 18:3 ω6 + 18:3 ω3), and 22:0 fatty acids in milk tended to increase, and there were significant increases in 18:0 and 9c11t-18:2 with SFO. In terms of the effects of SFO on the health-related lipid indices, the atherogenicity index tended to decrease and h/H tended to increase. When cows were supplemented with antioxidants, the concentration of 20:2 fatty acids decreased, the 6 + 7 + 8 + 9t-18:1, 16t-18:1, 20:0, 22:2, and 24:0 fatty acid concentrations increased, and there was a trend for the 22:1 ω9 fatty acid concentration to increase with antioxidants plus oil. There was a tendency for ω6 fatty acids and ω6/ω3 to increase with milk treated with antioxidants plus oil. The oxidative stability of milk was not influenced by the presence of SFO or antioxidants in the diet of dairy cows. Consumers desired the color and mouthfeel of the milk that was treated with SFO. Cows fed with 4% sunflower oil produced milk with an improved fatty acid profile for human nutrition, containing a higher CLA content and an improved ratio of hypocholesterolemic and hypercholesterolemic fatty acids, without increasing the milk’s susceptibility to oxidation. The milk was also rated as being more acceptable by consumers. MDPI 2019-02-25 /pmc/articles/PMC6412345/ /pubmed/30823572 http://dx.doi.org/10.3390/nu11020481 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Salles, Márcia S. V.
D’Abreu, Léa F.
Júnior, Luiz Carlos R.
César, Marcelo C.
Guimarães, Judite G. L.
Segura, Julio G.
Rodrigues, Cintia
Zanetti, Marcus A.
Pfrimer, Karina
Netto, Arlindo Saran
Inclusion of Sunflower Oil in the Bovine Diet Improves Milk Nutritional Profile
title Inclusion of Sunflower Oil in the Bovine Diet Improves Milk Nutritional Profile
title_full Inclusion of Sunflower Oil in the Bovine Diet Improves Milk Nutritional Profile
title_fullStr Inclusion of Sunflower Oil in the Bovine Diet Improves Milk Nutritional Profile
title_full_unstemmed Inclusion of Sunflower Oil in the Bovine Diet Improves Milk Nutritional Profile
title_short Inclusion of Sunflower Oil in the Bovine Diet Improves Milk Nutritional Profile
title_sort inclusion of sunflower oil in the bovine diet improves milk nutritional profile
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6412345/
https://www.ncbi.nlm.nih.gov/pubmed/30823572
http://dx.doi.org/10.3390/nu11020481
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