Effect of Feeding Management and Seasonal Variation on Fatty Acid Composition and Tocopherol Content of Cows’ Milk in Region of West Mediterranean, Turkey
Cow feeding plays a crucial role milk quality. The aim of the research was to examine the effects of two different feeding models and season variation (summer and winter) on fatty acid and tocopherol content of cow milk in two farms of West Mediterranean, Turkey. In one of examined farms, cows were fed pasture-based rations (n=12) and in another farm cows were fed commercial concentrate mix feed- based (n=12). Gross composition, fatty acids profile and tocopherol content of cows’ milk were analyzed. The percentages of fat and dry matter of grazed cows’ milk in summer season were higher than from cows’ milk fed with commercial concentrate ration. Concentration of palmitic acid (C16: 0), is higher in cows’milk fed pasture-based ration during summer period compared to that fed concentrate feed-based ration in summer and winter. In both seasons, the level of total tocopherols of cows’milk did not statistically differ between the groups. As a result, milk composition is affected by feeding management and seasonal variation. Likely, this change can be linked to grazing period and ration composition, which will influence potential nutritional qualities of the milk.
© 2011 Karaelmas Fen ve Mühendislik Dergisi