The effect of different treatments of ensilaged lucerne on microscopical fungi content
2000
Tancinova, D. | Javorekova, S. | Kacaniova, M. (Slovak Agriculture Univ., Nitra (Slovak Republic)) | Skultety, M. | Bencova, E. (Research Institute of Animal Production, Nitra (Slovak Republic))
Lucerne was ensiled fresh (variant A - 152.6 g DM/kg) and wilted (variant B - 272.9 g DM/kg and variant C - 481.0 g DM/kg). Within each variant 5 treatments were tested: non treated, treated with formic acid, treated with Microsil, treated with Sila-Bac and treated with Microsil+formic acid. The number of microscopic fungi cfu per gram dry matter was determined by Sabour agar. Malt agar and Czapek-Dox agar were used to isolate genera and species of fungi. With increasing dry matter in silage before silage processing the cfu fungi also increased. Thirteen genera of fungi were isolated from all samples of silage but only 11 before silage processing. The most frequent isolated genus was Aspergillus. The number of cfu fungi was the highest in silage from variant A especially non-treated or treated with formic acid. Even the number of cfu fungi increased as compared with number before ensilage processing. Microsil, Sila-Bac and Microsil plus formic acid significantly reduced cfu fungi in silage of all variants and treatments and also as compared with number before ensilage processing. Within the variant B and C there was not a clear effect of treatments on the number of cfu fungi. In conclusion, the best results were obtained in silage treated with Microsil plus formic acid
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