Ochratoxins are quite toxic to poultry, as nephrotoxins produced chiefly by Penicillium viridicatum and Aspergillus ochraceus in grains and feed. Ochratoxicosis primarily causes renal disease but also affects the liver, immune system, and bone marrow.
decreased weight gain and poor feed conversion
reduced spontaneous activity, hypothermia and huddling
diarrhea, rapid weight loss, and death
decreases in carcass yield, egg production, fertility and hatchability