Mycotoxins in cattle feeds and carry-over to dairy milk

Johanna Fink-Gremmels (1)

1 Div. Veterinary Pharmacology, Pharmacy and Toxicology

The complex diet of ruminants, consisting of forages, concentrates and preserved feeds, can be a source of very diverse mycotoxins that contaminate individual feed components. A number of mycotoxins is successfully inactivated by the rumen flora, whereas others pass unchanged, or are converted into metabolites that retain biological activity. Hence, the barrier function of the rumen largely determines the susceptibility of dairy cows and other ruminant species towards individual mycotoxins. An impairment of this barrier function due to diseases or the direct antimicrobial affect of certain mycotoxins, may increase absorption rates . The rate of absorption determines not only the internal dose and risk for adverse health effects, but also the excretion of mycotoxins and the biologically active metabolites with milk.

Mots clés: Life Sciences

Johanna Fink-Gremmels. Mycotoxins in cattle feeds and carry-over to dairy milk. Food Additives and Contaminants, 2008, 25 (02), pp.172-180. ⟨10.1080/02652030701823142⟩. ⟨hal-00577279⟩