. 2022 Aug 29;6(3):txac124. doi: 10.1093/tas/txac124

Table 6.

Comparison of available P release values based on different response variables, g/kg feed¹

Response variable	1.05 Ca/P				1.20 Ca/P				SD²	P value
	Phytase, FYT/kg feed				Phytase, FYT/kg feed					Phytase		Ca/P ratio⁴
	500	1,000	2,000	3,000	500	1,000	2,000	3,000		L³	Q³	Ca/P ratio⁴
ADG⁵, g/d	0.158	0.210	0.199	0.221	0.139	0.180	0.216	0.204	0.03	< 0.01	< 0.01	0.12
Gain:feed, g/kg	0.177	0.234	0.212	0.262	0.119	0.176	0.249	0.226	0.05	< 0.01	0.06	0.05
Bone ash, %	0.117	0.110	0.192	0.182	0.132	0.149	0.193	0.180	0.05	< 0.01	0.18	0.39
Bone P, g	0.125	0.148	0.198	0.197	0.131	0.184	0.207	0.221	0.04	< 0.01	0.04	0.09

There were six replicates.

SD, standard deviation.

Linear and quadratic effects of phytase.

The effect of Ca/P ratio compares between the ratios of 1.05 and 1.20, and no significant interaction between phytase and the Ca/P ratio was observed.

ADG, average daily gain.