Abstract
Five experiments testing the response of Japanese quail to graded doses of ochratoxin A (OA) were conducted. Levels in the feed up to 16 ppm had no adverse effect on egg production, egg weight, feed consumption and change in body weight when measured over a 5- or 6-wk period. An examination of these production characteristics on a weekly basis indicated a significant depression (P < 0.05) during the 3rd wk on egg weight at 4, 8 and 16 ppm and on feed consumption and change in body weight at 16 ppm. Fertility and hatchability were greatly reduced in those matings fed 16 ppm. Egg weight of the group receiving 16 ppm was significantly depressed (P < 0.05) during the week following either the introduction or the removal of males. A rapid increase in body weight was observed in the hens receiving 16 ppm when OA was removed from their diet.
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