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In vivo mineral source solubilization is determined by a decanting procedure in which unsolubilized mineral sources are recovered from the excreta. These studies were conducted to improve the accuracy and broaden the use of this procedure. These studies examined the influence of excreta sample wet weight on percentage mineral source recovered; compared results from wet samples and dried, ground samples of comparable original wet weights, and evaluated the influence of three P sources on percentage in vivo P source solubilization in broilers and layers. Reducing sample weights significantly (P |
