Table 4.

The impact of adding different levels of Buttiauxella phytase to a negative control diet on carcass quality.¹

Item	PC	NC + 500 FTU phytase	NC + 1,000 FTU phytase	SEM	P-value
Carcass weight, kg	96.59	96.45	98.57	0.919	0.21
Lean carcass, %	53.3	53.2	53.0	0.126	0.20
Yield, %	74.0xy	73.7y	74.3x	0.184	0.075
Muscle depth, mm	63.78ab	63.91a	62.63b	0.334	0.022
10th rib back fat, mm	18.94y	19.72x	18.99y	0.232	0.052

PC = positive control.

^{a, b} Values in the same row not sharing the same superscript differ at P < 0.05.

^{x, y} Values in the same row not sharing the same superscript tend to differ at P < 0.10.

¹Only 3 replicates in negative control (NC) reached market weight and therefore NC treatment was not included.