Chemical composition and physicochemical properties of colostrum and milk of Wielkopolska mares
2006
Dankow, R. | Pikul, J.,Poznan Agricultural University (Poland). Dept. of Dairy Technology | Wojtowski, J.,Poznan Agricultural University (Poland). Dept. of Sheep and Goat Breeding | Cais-Sokolinska, D.,Poznan Agricultural University (Poland). Dept. of Dairy Technology
Basic chemical composition, density, active acidity and free fatty acid contents were investigated in colostrum and milk of Wielkopolska mares during 21 weeks of lactation. Colostrum in comparison to milk contained significantly more total protein and casein and was characterized by higher dry matter contents and density. It contained less fat, lactose and free fatty acids. Mean total protein content in milk was 2.00 percent, decreasing from the 1st (3.78 percent) to the 12th (1.54 percent) week of lactation. In the period between week 13 and 21 of lactation the level of total protein was similar, within the range from 1.62 to 1.72 percent. Contents of lactose, casein, fat, dry matter and free fatty acids in milk were 6.23 percent, 1.34 percent, 2.41 percent, 11.33 percent and 0.30 mcEq/cubic cm, respectively. The smallest fluctuations in the investigated lactation period were found in the contents of free fatty acids. Lactose content was relatively stable. Starting from the 8th to the 21st week of lactation it was similar, within the range from 6.25 to 6.50 percent
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