Abstract:The effect of a Buttiauxella sp. phytase on performance and bone ash in piglets was evaluated. A negative control (NC) diet was formulated without inorganic phosphate [0.11% digestible phosphorus (P)] and lower in calcium (Ca, 0.5%). NC was supplemented with the phytase at 0, 500 and 1,000 FTU/kg diet or with mono-calcium phosphate (MCP) at 4 levels to add 0, 0.7, 0.14 and 0.18% digestible P and with additional limestone to maintain Ca to P ratio (1.2 to 1.3). The latter was the positive control (PC) and conta… Show more
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