Feed that is polluted by zearalenone and other mycotoxins impact quality on milk

Abstract

Feeding production animals feed that is polluted by little quantities of mycotoxin concentrations is researched only a little. Even less researched is body's response when cows are fed feed that has low level of mycotoxins. What kind of parts the body accumulates in itself. Negative impact of mycotoxins to animals health is not definitely clear and what part of mycotoxins metabolite has passed barriers falls into production. Feed for analysis were taken from the dairy cows that comes from Lithuanian farms where was noticed non-specific origins SCC (somatic cells count) increase in milk. Composition of mycotoxins has been identified in feed (aflatoxin, B1, Zearalenone, deoxynivalenol) and in samples of milk we were identifying ZEA and qualitative indicators (fat, proteins, urea, lactose content, PH, SCC, TBC). In the samples of feed composition of mycotoxins has been established TLS (Romer Labs methods) ELISA Test Ridascreen® Zearalenone (R-Biopharm AG) has been used to identify ZEA in milk. Qualitative indicators of milk were analysed VI "Pieno tyrimai" (Lithuania). The average AFL B1 composition that was analysed in cows feed - 2,67±0,5 μg/kg, ZEA - 496,25±35,12 μg/kg, DON - 65,31±7,21 μg/kg. We have established that increasing composition of ZEA in TMR cows feed has influenced growth SCC and TBC in milk. It was established that 16.7% of milk samples has contained ZEA mycotoxins. The amount of ZEA composition in milk samples was 0.01% up to 0.31% compared to the amount of mycotoxins that got into the cows organism with TMR.