TABLE 3.

Most abundant bacterial genera (−log copies) in each phylum extracted from feces of dogs fed diets supplemented with inorganic (IZ and IZ +) and organic (OZ and OZ +) Zn sources without (IZ and OZ) and with (IZ + and OZ +) the addition of a multi-enzymatic complex from the solid-state fermentation of Aspergillus niger.

Taxa	Diets1				SEM2	p-Value
	IZ	IZ +	OZ	OZ +		Zn	Enzyme	Zn × Enzyme
p_Actinobacteria	4.41ab	4.28b	4.29b	4.87a	0.156	0.148	0.172	0.029
g_Coriobacteriaceae UCG-002	1.34	1.31	0.28	0.63	0.372	0.035	0.676	0.596
p_Bacteroidetes	8.79	8.84	8.25	8.6	0.177	0.035	0.293	0.392
g_Alloprevotella	6.76a	6.58a	5.84b	6.71a	0.232	0.108	0.165	0.031
g_Paraprevotella	2.07a	1.47a	0.27b	1.66a	0.372	0.037	0.324	0.015
g_Rikenellaceae RC9 gut group	2.53	2.31	1.40	1.66	0.372	0.025	0.954	0.538
g_Parabacteroides	3.20	3.44	2.57	2.58	0.307	0.022	0.706	0.705
p_Firmicutes	8.08	7.94	8.3	8.35	0.084	0.001	0.609	0.264
g_Lactobacillus	4.97	5.34	4.29	5.24	0.313	0.244	0.048	0.373
g_[Eubacterium] brachy group	3.97a	3.41ab	2.89b	3.59a	0.244	0.088	0.789	0.013
g_[Ruminococcus] gnavus group	2.98ab	2.52b	2.92b	3.52a	0.204	0.032	0.729	0.015
g_Lachnoclostridium	2.66ab	2.72ab	2.27b	3.07a	0.163	0.890	0.014	0.032
g_Lachnospira	3.96	4.05	1.96	2.46	0.517	0.004	0.577	0.696
g_Peptococcus	3.09	2.82	2.10	2.53	0.285	0.040	0.802	0.217
g_Butyricicoccus	2.00	2.15	2.58	2.57	0.207	0.023	0.766	0.708
g_Ruminococcaceae UCG-014	3.10b	2.33b	3.28b	4.57a	0.360	0.002	0.471	0.016
g_Erysipelatoclostridium	3.35	3.47	3.07	2.95	0.191	0.049	0.974	0.541
g_Holdemanella	1.66ab	1.34b	1.19b	2.17a	0.272	0.530	0.219	0.019
g_Turicibacter	5.34	5.03	6.66	6.41	0.307	<0.001	0.398	0.935
p_Proteobacteria	6.60	6.90	6.08	6.40	0.138	<0.001	0.033	0.923
g_Rhizobium	1.64	1.33	2.98	2.80	0.510	0.031	0.641	0.894
g_Parasutterella	6.34	6.72	5.19	5.77	0.278	0.001	0.099	0.709
p_Tenericutes	0.19c	1.55ab	1.96a	0.34bc	0.475	0.560	0.788	0.006
g_Anaeroplasma	0.20b	1.48ab	1.90a	0.18b	0.492	0.694	0.673	0.006

Only taxa significantly affected by diets are represented. ^a–cValues in the same row that share a common superscript are not statistically different (p > 0.05). Letters before bacterial groups designate taxa: p_: phylum, g_: genus.

¹Twelve replicas per treatment.

²Standard error of the mean.