| Popis: |
THE pyridoxine requirements of chicks have been reported to be from 275 to 400 micrograms per 100 grams of diet (Hogan et al., 1941; Briggs et al., 1942). No data are available on the pyridoxine requirements of turkey poults. Since the turkey’s requirements are slightly but significantly higher for pantothenic acid (Lepkovsky et al., 1945) and riboflavin (Bird et al., 1946) than those of the chick, it seemed worth while to establish their comparative requirements for pyridoxine. EXPERIMENTAL At hatching, turkey poults and baby chicks were given stock mashes for one week, after which they were given the pyridoxine-deficient diet used in our previous pyridoxine studies (Bird et al., 1943). Three series of experiments were run. In the first series, the only difference between the chick and poult diets consisted in doubling the vitamin A and D oil in the poult diet. The second and third series differed from the . . . |
