Table 1. Taxonomic richness of samples: distribution of the number of each taxonomic level identified by sample.

Sample ID	Taxonomic level
	Phylum	Class	Order	Family	Genus	Species
T1_Va	17	24	31	46	49	19
T1_Vb	18	23	30	46	48	17
T1_Ca	14	21	27	44	50	20
T1_Cb	14	21	28	46	50	18
T2_Va	17	23	30	45	48	18
T2_Vb	18	23	29	44	48	16
T2_Ca	14	21	28	46	51	19
T2_Cb	14	21	28	44	51	19
T3_Va	18	24	30	48	50	16
T3_Vb	18	23	29	46	49	17
T3_Ca	14	21	28	45	51	19
T3_Cb	14	21	26	45	50	18
Total	18	24	32	49	58	26

Note:

T1—samples collected before nisin-biogel applications; T2—samples collected after one application of the nisin-biogel; T3—samples collected after three applications of the nisin-biogel; ID—identification. Va—Animal V, sample 1; Vb—Animal V, sample 2; Ca—Animal C, sample 1; Cb— Animal C, sample 2.