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The aim of this study was to estimate maize silage hygienic sanitary parameters, contamination with mycotoxins in dairy farms in Lithuania. In 2011–2012 maize silage samples were collected from 20 dairy farms: prior to ensiling and 3 and 8 months after ensiling. In maize samples, prior to ensiling, L. monocytogenes was detected 25.0 % and after 3 months of ensiling – 10 %. Average of yeast and filamentous fungi in raw material samples were respectively – 71.39 ± 32.17 and 47.67 ± 18.31 CFU/g, after 3 months – 50.06 ± 16.09 CFU/g and 28.27 ± 13.18, after 8 months – 213.81 ± 55.98 and 215.08 ± 56.16 CFU/g. In raw maize dominated Fusarium spp. and in silage – Aspergillus, Penicillium spp. Average of lactic acid bacteria – 189.01 ± 57.79 (3 months after ensilage) and 436.11 ± 93.97 CFU/g (8 months after ensilage). Compared prior to ensilage and 3 and 8 months after ensilage maize samples, higher mycotoxins concentrations of DON – 36.96 % (P   0.05) in samples after 3 months of ensiling. Dry matter and pH respectively: prior to ensiling – 36.96 % and 5.26, 3 months after ensiling – 33.17 % and 3.84, 8 months after ensiling – 40.52 % and 3.91. The current results indicate the presence of yeast, viable fungi spores and mycotoxins AFL (total), ZEA, DON, T-2 and OTA contamination in maize silage in Lithuania.

HYGIENIC SANITARY ESTIMATION OF MAIZE SILAGE IN DAIRY FARMS IN LITHUANIA