TABLE 3.

The results of a multilevel linear regression model examining the associations between processing stage and season on the log₁₀ conjugation frequency

Stratification parameters	βa	95% CI	P value
Digestion stage
Digested	Referent
Raw	0.82	0.23, 1.41	0.006
Season
Spring	Referent
Summer	0.92	−0.09, 1.93	0.075
Fall	1.59	0.15, 3.03	0.030
Winter	1.13	0.16, 2.11	0.022
Variance components	Variance (VPCb)	95% CI
Farm	2.69 (40.8%)	0.77, 9.34
Farm on date of sampling	1.07 (16.2%)	0.40, 2.82
Sample	2.83 (42.9%)	2.00, 4.01

^aModel coefficients.

^bVariance partition coefficients.