Abstract
It is well established that antibiotics stimulate chick growth and improve feed efficiency under certain circumstances. However, little or no evidence appears to have been brought forth concerning the favorable influence of antibiotics in the maternal diet on the growth of the progeny. Such evidence will be presented in this report.The chicks used in the experiment were from Barred Plymouth Rock hens maintained on litter and fed diets with the following composition per 100 pounds: ground yellow corn 14.0, ground wheat 45.0, pulverized oats 20.0, dehydrated alfalfa 2.5, ground limestone 1.0, steamed bone meal 2.5, fish oil (400D–2,400A) 0.5, iodized salt 0.5, manganese sulfate (tech.) 5.7 gm., riboflavin 150 mg., vitamin B12 0.3 mg., and either 14.0 of wheat shorts, 7.0 of wheat shorts plus 7.0 of soybean oil meal or 14.0 of soybean oil meal. The three hen diets contained about 13.5, 15.5 and 17.5 percent protein .
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