| Texto completo | |
| Autor(es): |
Pires, Rogerio D'Antonio
;
Moreira Borowsky, Aline
;
Silva, Tobias Alves E.
;
Evangelista, Giovanna Canela Ruiz Castro
;
Maris Machado Bittar, Carla
;
Corassin, Carlos Humberto
Número total de Autores: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | DAIRY; v. 6, n. 4, p. 11-pg., 2025-08-04. |
| Resumo | |
The diet of dairy calves can be contaminated with mycotoxins, posing a potential risk to animal health. This case study report aimed to make the first assessment of the presence of multiple mycotoxins in concentrates fed to dairy calves in Brazil. A total of 19 concentrate samples intended for dairy calves were analyzed using liquid chromatography coupled with mass spectrometry. Aflatoxins, deoxynivalenol, and T-2 toxin were not detected in any samples, whereas fumonisins B-1 (FB1) and B-2 (FB2) were present in 100% of the samples, with mean concentrations of 2750.1 mu g/kg and 834.9 mu g/kg, respectively. Zearalenone (ZEN) was detected in 36.8% of samples, with a mean concentration of 929.9 mu g/kg. Significant correlations were observed between FB1 and FB2 (rho = 0.978; p < 0.001) and between FB2 and ZEN (rho = 0.735; p = 0.05). While the physical form of the concentrate did not influence (p > 0.05) mycotoxin concentrations, a trend was observed for FB1 (rho = -0.417; p = 0.07) and FB2 (rho = -0.395; p = 0.09). These findings highlight the frequent occurrence of Fusarium mycotoxins, likely due to pre-harvest contamination, emphasizing the potential risk of additive or synergistic effects in dairy calves. (AU) | |
| Processo FAPESP: | 25/04043-3 - Avaliação do perfil e concentração micotoxicológica em fazendas leiteiras na região sudeste do Brasil. |
| Beneficiário: | Tobias Alves e Silva |
| Modalidade de apoio: | Bolsas no Brasil - Mestrado |
| Processo FAPESP: | 23/16007-6 - Avaliação da ocorrência de multi-micotoxinas na dieta de bovinos em confinamento no Brasil |
| Beneficiário: | Rogério D'Antonio Pires |
| Modalidade de apoio: | Bolsas no Brasil - Mestrado |
| Processo FAPESP: | 22/07439-7 - Avaliação das multi-micotoxinas no leite e na dieta de vacas leiteiras na região Sudeste do Brasil |
| Beneficiário: | Carlos Humberto Corassin |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |