Effect of roughage:concentrate ratio in the diet on systemic availability and excretion of ochratoxin A in sheep
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Institute of Animal Nutrition, Physiology, and Metabolism, Christian-Albrechts-University, 24098 Kiel, Germany
Department of Animal Science,University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2
Publication date: 2004-08-30
Corresponding author
R. Blank   

Institute of Animal Nutrition, Physiology, and Metabolism, Christian-Albrechts-University, 24098 Kiel, Germany
J. Anim. Feed Sci. 2004;13(Suppl. 1):673-676
Microbial detoxification of ochratoxin A in the rumen may be influenced by the concentrate level in the diet. The aim of the present study was to evaluate the effects of practically relevant concentrate levels in ruminant diets on the metabolism of ochratoxin A in sheep. High concentrate diets delayed ruminal degradation of ochratoxin A to the less toxic ochratoxin α and increased the systemic availabilty of ochratoxin A compared to high roughage diets, implying that under intensive ruminant production conditions the potential for a carry over of ochratoxin A into meat or milk may be increased.
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