Effect of some environmental and nutritional factors on the production of zearalenone of Fusarium species

Fusairum graminearum; Fusarium sambucinum: Fusairum roseum; Fusarium moniliforme; Fusarium solani and Fusarium oxysporum were isolated from wheat grains and used for studies on the production of Zearalenone toxin under different cultures conditions; temperature and pH values. F. graminearum; F. sambucinum; F. roseum and F. moniliforme had the ability to produce Zearalenone on Czapek's medium containing 3% glucose or 0.5% peptones at 25 degree C and pH 5. F. solani and F. oxysporum did not produce zearalenone. All studied Fusarium spp. Were not able to produce Zearalenone at 30 degree C; pH 3 and 8

Hiperestrogenismo en cerdas por intoxicación natural con zearalenona / Hyperestrogenism in swine due to natural poisoning with zearalenone

Se describe un caso de intoxicación de cerdas prepúberes con zearalenona (Z) al consumir una dieta conteniendo 56 ppm Z. En el maíz contaminado se encontró una cepa de Fusarium oxysporum que produjo Z en cultivo sobre ese grano. Se indicaron la evidencias de distinta índole que permitieron confirmar que los efecto observados fueron producidos por dicha micotoxina