TABLE 4.

Means and P values for storage method and depth for bacterial concentrations and bacterial prevalence in the summer-fall cycle^a

Parameter	Concn (log10 CFU g−1)b		Prevalence (%)
	Total E. coli	Total enterococci	Total E. coli	AzithromycinR E. coli	TetracyclineR E. coli	Total enterococci	TylosinR enterococci	TetracyclineR enterococci
Storage methodc,d
Composting	0.66 A	0.85	54	18 A	13 A	87 A	23	36 A
Stockpiling	0.52 B	0.82	49	3 B	0 B	67 B	19	17 B
Depth from surface (cm)c,d
2.5	0.80	0.98	61	15	8	88	29	33
45.7	0.61	0.74	49	8	4	80	21	29
76.2	0.33	0.78	45	8	8	64	13	17
P value
Method	0.019	0.518	0.462	0.001	<0.001	<0.001	0.060	0.002
Depth	0.265	0.594	0.477	0.198	0.683	0.120	0.198	0.256

^aStatistics for interaction terms can be found in Table S6.

^bAntibiotic-resistant forms of E. coli and enterococci were not quantifiable.

^cValues followed by a letter combination sharing one or more letters are not statistically different at the P value of <0.05 based on Tukey’s post hoc test.

^dValues are treatment averages which were calculated based on all data for one particular treatment level.