Table 3.

Effect of feeding different amounts of NPP and phytase on laying hen performance¹.

				Egg		Hen weight
	Dietary NPP	Inorganic P addition	Phytase addition	weight	mass	week 1	week 4
Treatment	%	%	FYT/kg	g	g/h/d	g/h	g/h
1	0.12	0.00	0.0	60.3c	40.1b	1,602	1,621
2	0.23	0.11	0.0	61.1b,c	47.2a	1,601	1,621
3	0.34	0.22	0.0	62.5a	51.1a	1,566	1,587
4	0.12	0.00	300	61.9a,b	49.7a	1,530	1,549
5	0.12	0.00	600	61.7a,b	50.8a	1,604	1,624
6	0.12	0.00	1200	61.5a,b	51.1a	1,613	1,634
7	0.12	0.00	1800	62.2a,b	51.6a	1,586	1,606
			SEM	0.42	1.57	33.1	32.9
			P <	0.0162	0.0001	0.60	0.58

¹Numbers with distinct letter per column were statistically different (P < 0.05).