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.
Genetics and breeding of farm animals, Institute of Animal Science,Přátelství 815, 104 01 Prague - Uhříněves,Czech Republic.
J Dairy Res. 2019 May;86(2):233-237. doi: 10.1017/S0022029919000244. Epub 2019 Apr 30.
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.
在本研究通讯中，我们评估了瓦拉几亚绵羊奶的脂肪酸（FA）组成。研究在贝斯基迪山脉的 38 只母羊上进行。在哺乳期每月采集 4 次样本。研究了 FA 组成以及饱和脂肪酸、单不饱和脂肪酸（MUFA）和多不饱和脂肪酸（PUFA）组。在泌乳过程中，月桂酸、肉豆蔻酸、肉豆蔻油酸和棕榈酸显著增加，而硬脂酸则呈相反趋势。通过对不同采集日期的显著差异，证明油酸具有很大的变异性；在试验的开始和结束时，油酸的分布最高。CLA 的最高分布出现在第二个样本日。在永久性牧场自然放牧的瓦拉几亚绵羊的奶中，与文献中报道的集约化或半集约化绵羊品种相比，其多不饱和脂肪酸（PUFA）和单不饱和脂肪酸（MUFA）含量更高。
