Abstract

PENICILLIN has been reported by Slinger et al. (1953) to stimulate growth in cross bred male goslings up to 2 weeks but not at 4, 6 or 8 weeks of age. This improvement was noted on birds fed pelleted rations, and pellets plus grain. Branion and Hill (1952) observed growth stimulation in goslings from aureomycin, procaine penicillin, diamine penicillin, streptomycin and terramycin fed at the level of 50 p.p.m. in a mash ration.No reports could be found relative to the use of 3-nitro-4-hydroxyphenylarsonic acid in gosling rations. Several workers have, however, observed growth stimulalation in other avian species with this arsonic acid (Morehouse and Mayfield, 1946; Bird et al., 1948, 1949, with chickens; Morehouse, 1949, with turkeys; and Scott et al., 1954, with pheasant chicks). The experiments to be reported were therefore conducted to determine the influence of 3-nitro-4-hydroxyphenylarsonic acid and two antibiotics on the growth of goslings.PROCEDURE

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