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Volume 59, issue 3
Arch. Anim. Breed., 59, 373–380, 2016
https://doi.org/10.5194/aab-59-373-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Arch. Anim. Breed., 59, 373–380, 2016
https://doi.org/10.5194/aab-59-373-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Original study 06 Sep 2016

Original study | 06 Sep 2016

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

Oto Hanuš1, Ludmila Křížová2, Eva Samková3, Jiří Špička3, Josef Kučera4, Marcela Klimešová1, Petr Roubal1, and Radoslava Jedelská1 Oto Hanuš et al.
  • 1Dairy Research Institute, Ltd., Prague, Praha 6 – Vokovice, 160 00, Czech Republic
  • 2Department of Animal Nutrition, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Brno, 612 42, Czech Republic
  • 3Faculty of Agriculture, University of South Bohemia, České Budějovice, České Budějovice, 370 05, Czech Republic
  • 4Department of Animal Breeding, Faculty of Agronomy, Mendel University in Brno, Brno, 613 00, Czech Republic

Abstract. The aim of the study was to determine the effect of cow breed, season and type of diet on the fatty acid (FA) profile of raw milk. A 2-year study was conducted on bulk milk samples collected from eight herds consisting of Czech Fleckvieh (CF, four herds) and Holstein (H, four herds) breeds. One half of the herds of each breed was grazed (G), while the other half was not (N). Samples were collected twice in winter (W) and twice in summer (S). Milk yield in CF (5385.50 kg) was lower than in H (7015.15 kg, P <  0.05). The effect of breed was found in odd-chain, branch-chain and hypercholesterolemic FAs (P <  0.05). The content of fat was lower in summer (S) than in winter (W), being 3.71 and 3.91 g 100 g−1, respectively (P <  0.05). The proportion of saturated and polyunsaturated FAs was lower in S than in W (P <  0.05). The content of monounsaturated FAs was higher in S (30.69 g 100 g−1) than in W (27.72 g 100 g−1, P <  0.05). Milk yield in grazing herds (G, 5197.50 kg) was lower (P <  0.05) than in non-grazing herds (N, 7203.75 kg). The sum of saturated and hypercholesterolemic FAs was lower and the sum of monounsaturated and odd-chain FAs was higher in G than in N (P <  0.05). Content of conjugated linoleic acid (CLA) and C18:3n3 was higher in G (0.93 and 0.64 g 100 g−1) than in N (0.42 and 0.39 g 100 g−1, respectively, P <  0.001).

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This study aimed to determine the effect of cow breed, season and type of diet on the fatty acid profile of raw milk. The study was conducted on bulk milk samples collected in winter and summer from 4 herds of Czech Fleckvieh and 4 herds of Holstein cows. One half of the herds was grazed while the other half was not. Effect of breed was found in odd-chain, branch-chain and hypercholesterolemic FA while season and type of diet mainly influenced the proportion of saturated and polyunsaturated FA.
This study aimed to determine the effect of cow breed, season and type of diet on the fatty acid...
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