Table 3. Effects of phytase supplementation on blood concentrations of Ca, P, IL, and INS in broilers (n=10)

Variable	PC	NC	NC500	NC1000	NC1500	SEM	p-value
Ca (mg/dL)	126^bc	117^c	121^c	134^ab	140^a	2.07	0.001
P (mg/dL)	220^a	188^c	195^bc	211^ab	204^abc	3.34	0.013
IL-2 (pg/mL)	162^a	123^b	162^a	157^a	159^a	4.10	0.007
IL-6 (pg/mL)	170^a	128^b	176^a	169^a	168^a	4.73	0.004
INS (mg/dL)	74.7^b	67.3^b	80.2^b	109.5^ab	122.6^a	6.86	0.032

Means within the column with no common superscripts differ significantly (p < 0.05).
PC, positive control; NC, negative control; NC500, NC + phytase at 500 FTU/kg; NC1000, NC + phytase at 1,000 FTU/kg; NC1500, NC + phytase at 1,500 FTU/kg; Ca, calcium; P, phosphorus; IL, interleukin; INS, myo-inositol.