Two experiments using a total of 1260 broiler-type chicks were conducted to evaluate the use of diluents in phosphorus assays. Two formulations were used with either solka-floc or sand as a diluent and a third formulation had no diluent added. Although the diets without a diluent were more concentrated, the results obtained with them were not significantly higher than those with diluents. The diets containing sand resulted in the most uniform data. Solka-floc appeared to depress growth. Of the formulations studied, sand appears to be desirable in assay work with practical-type diets.
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Andrews et al. (1972) studied this question.
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