Aetiological surveys on fescue foot in farm cattle: toxicity test of metabolites of Fusarium spp

By Gao, F. and Ni, Y. H. and Wu, J. J. and Wu, J. Z., Chinese Journal of Veterinary Science and Technology, 1991
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A total of 52 forage samples in fescue foot affected areas were collected and examined, and 3197 strs. including Aspergillus, Fusarium, Penicillium, Cladosporium, Nigrospora and Alternaria spp. were detected. The occurrence of fescue foot correlated positively with the contamination rate of F. sporotrichioides, F. semitectum [F. pallidoroseum] and F. equiseti. 30 ether extracts of maize cultures of 53 strs. of 10 Fusarium spp. caused skin lesions in rabbits. The maize cultures, the ether and methyl alcohol-water (95:5) extracts of F. sporotrichioides and F. pallidoroseum were toxic and lethal for rats and mice. Typical symptoms of fescue foot were observed in 2 healthy bucks when they were injected intraperitoneally with the crude ether toxin
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