TABLE 1.

Total number of 16S rRNA gene copies of Eubacteria and Archaea in cecal digesta of pigs fed diets with or without phytase and lactic acid treatment of cereals^a

Domain	Value under indicated grain treatment conditions				SEM	P value
	No phytase		Phytase
	Con	LA	Con	LA		Phytase	LA	Phytase × LA
Eubacteria (log10 gene copies/g)	12.3	12.5	12.4	12.4	0.042	0.792	0.058	0.225
Archaea (log10 gene copies/g)	9.0 a	8.9 a	7.9 b	8.9 a	0.260	0.044	0.080	0.038
Archaea (% of total bacteria)	1.18 a	0.43 ab	0.22 b	0.55 ab	0.314	0.195	0.506	0.097

^aValues are presented as least-square means ± SEM (n = 8 pigs per dietary treatment). Different lowercase letters (a and b) in cell entries within a row indicate a significant difference (P ≤ 0.05). Con, control; LA, lactic acid-treated cereals.