Effect of dietary nonphytate phosphorus on laying performance and small intestinal epithelial phosphate transporter expression in Dwarf pink-shell laying hens

Table 3 Effect of nonphytate phosphorus levels on productivity of laying hens from 30 to 41 wk of age ¹

Nonphytate phosphorus, %	Egg production, %	Egg weight, g	Feed/egg ratio	Feed intake, g	Hen-day egg production, g	Broken egg, %	Mortality, %
0.20	87.25	51.33^b	2.10	91.45^b	44.81^b	0.26	0.012
0.25	90.95	51.72^ab	2.10	96.37^a	46.74^ab	0.16	0.049
0.30	90.44	52.67^a	2.11	97.06^a	47.63^a	0.18	0.049
0.35	88.03	52.67^a	2.14	95.63^a	46.40^ab	0.16	0.012
0.40	88.77	51.62^ab	2.13	94.5^a	45.29^b	0.18	0.037
SEM	0.49	0.18	0.01	0.53	0.34	0.03	0.010
P-value	0.075	0.037	0.887	0.002	0.035	0.823	0.608
Linear	0.893	0.210	0.335	0.092	0.773	0.892	0.446
Quadratic	0.045	0.010	0.975	0.000	0.002	0.987	0.364

^{a, b}Within comparisons, means in a column with no common superscripts differ significantly (P < 0.05).
¹Nine replications per treatment, three cages per replication, three hens per cage.

ISSN: 2049-1891