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Analysis of fatty acid profile in milk fat of Wallachian sheep during lactation

Published online by Cambridge University Press:  30 April 2019

Martin Ptáček ,
Michal Milerski ,
Jaromír Ducháček ,
Jitka Schmidová ,
Vladimír Tančin ,
Michal Uhrinčať ,
Luděk Stádník  and
Tereza Michlová
Martin Ptáček*
Affiliation:
Department of Animal Science, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague – Suchdol, Czech Republic
Michal Milerski
Affiliation:
Genetics and breeding of farm animals, Institute of Animal Science, Přátelství 815, 104 01 Prague – Uhříněves, Czech Republic
Jaromír Ducháček
Affiliation:
Department of Animal Science, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague – Suchdol, Czech Republic
Jitka Schmidová
Affiliation:
Genetics and breeding of farm animals, Institute of Animal Science, Přátelství 815, 104 01 Prague – Uhříněves, Czech Republic
Vladimír Tančin
Affiliation:
Research Institute for Animal Production Nitra, National Agricultural and Food Centre, Hlohovecká 2, 951 41 Lužianky, Slovak Republic Department of Veterinary Science, Faculty of Agrobiology and Food Resources, Slovak Agricultural University, Tr. A. Hlinku 2, 949 76 Nitra, Slovak Republic
Michal Uhrinčať
Affiliation:
Research Institute for Animal Production Nitra, National Agricultural and Food Centre, Hlohovecká 2, 951 41 Lužianky, Slovak Republic
Luděk Stádník
Affiliation:
Department of Animal Science, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague – Suchdol, Czech Republic
Tereza Michlová
Affiliation:
Department of Chemistry, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague – Suchdol, Czech Republic
*
Author for correspondence: Martin Ptáček, Email: [email protected]
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Abstract

In this Research Communication we evaluate the fatty acid (FA) profile of Wallachian sheep milk. The study was performed on 38 ewes in Beskydy Mountains. Samples were collected 4 times during the lactation, at monthly intervals. FA profile as well as groups of saturated, monounsaturated (MUFA), and polyunsaturated (PUFA) FAs were investigated. Considerable increase over the lactation was detected for lauric, myristic, myristoleic and palmitic acids, while stearic acid showed the opposed tendency. Variability, supported by significant differences among particular days of milk collection, was demonstrated for oleic acid; its highest distribution occurred at the beginning and at the end of the trial. The highest distribution of CLA was at the second sample day. Milk of Wallachian sheep naturally grazed at permanent pasture areas showed higher content of PUFA and MUFA in contrast with intensive or semi-intensive sheep breeds reported in the literature.

Keywords

CLAewefatty acidsgenetic resource
Type
Research Article
Information
Journal of Dairy Research , Volume 86 , Issue 2 , May 2019 , pp. 233 - 237
Copyright
Copyright © Hannah Dairy Research Foundation 2019 

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