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English Summary of Schoner, et al., “Vergleich der effekte von mikrobieller Phytase und anorgamischem Phosphat auf die Leistungen und die Retention von Phosphor, Calcium und Rohasche bei Masthühnerküken in der Anfangsmast,” J. Anim. Physiol. a. Anim. Nutr., vol. 66, pp. 248-255 (1991). |