Abstract
Summary
An experiment was conducted with White Leghorn pullets to determine the effect of feeding terramycin alone and in combination with vit. B12 on egg production and hatchability. The results obtained indicate that terramycin had little or no effect on egg roduction and gain in weight. In the absence of vit. B12, hatchability of fertile eggs was definitely improved by feeding terramycin. There was an indication that terramvcin fed in combination with vit. B12 further improved hatchability.
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