Chemical composition of colostrum and milk of Polish Merino sheep lambing at different times

Chemical composition and fatty acid content of colostrum and milk were analysed in Polish Merino sheep lambing at different times. The sheep lambed in January and June, and were keep indoors throughout the experiment. It was found that the content of different components in colostrum and milk of sheep in both groups was comparable with the results obtained by other authors. Slight differences in the content of fat and fatty acids were probably due to lower milk yield of the sheep, whose lactation took place under a decreasing light day.