BIOLOGICALLY ACTIVE AND ANTICANCEROGENIC SUBSTANCES IN THE LIPID FRACTION OF EWE MILK ON SYNTHETIC POPULATION BULGARIAN MILK BREED | БИОЛОГИЧНО АКТИВНИ И АНТИКАНЦЕРОГЕННИ СУБСТАНЦИИ В МАСТНАТА ФРАКЦИЯ НА ОВЧЕ МЛЯКО ОТ ПОРОДАТА СИНТЕТИЧНА ПОПУЛАЦИЯ БЪЛГАРСКА МЛЕЧНА
2013
Ivanova, S., Institute of Cryobiology and Food Technology, Sofia (Bulgaria) | Ivanova, T., Institute of Animal Science, Kostinbrod (Bulgaria) | Raycheva, E., Institute of Animal Science, Kostinbrod (Bulgaria) | Angelov, L., Institute of Cryobiology and Food Technology, Sofia (Bulgaria)
The survey was carried out in the late stage of lactation with sheep from Synthetic population Bulgarian milk during 32 days using a balanced protein, energy and mineral nutrition. The total fat content in the milk increased from 6.85 to 8.13% during the investigated period. The protein content reduced significantly during the lactation period from 6.47 to 5.75%. The lactose content in the milk varied in narrow range from 4.59 to 4.82%. For the first time from May to June the fatty acid composition in the ewes milk was studied. The total content of saturated fatty acids - SFA was insignificantly reduced from 70.99 to 67.14 g/100g fat. The decrease in the concentration of SFA during the investigated period was accompanied by an increase in the proportion of MUFA - to 4.97% and reduction of the content of PUFA - 0.55%. The concentration of conjugated fatty acids - CLA in milk ranged from 0.78 to 1.10 g/100g, which indicated that the high level of concentrate nutrition in the diet led to a low content of CLA in the ewe's milk of SPBM.
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