Table 1.

Statistics for pairwise beta dispersion and PERMANOVA

Age, feed type, or farm	Beta dispersion
Age, feed type, or farm	Unweighted UniFrac distance	Weighted UniFrac distance
Weeks 1–2 – Weeks 3–4	n.s.	n.s.
Weeks 1–2 – Weeks 5–6	P = 1.1e-5***	n.s.
Weeks 3–4 – Weeks 5–6	P = 4.9e-3**	n.s.
Starter – Grower	n.s.	n.s.
Starter – Finisher	P = 1.4e-2*	n.s.
Grower – Finisher	P = 8.0e-6***	P = 1.1e-2*
Farm A – Farm B	n.s.	P = 8.2e-3**
Farm A – Farm C	P = 6.5e-3**	P = 3.2e-3**
Farm B – Farm C	n.s.	n.s.
Age, feed type, or farm	PERMANOVA
Age, feed type, or farm	Unweighted UniFrac distance	Weighted UniFrac distance
Ages	R² = 0.1756 (P = 1e-04***)	R² = 0.0822 (P = 1e-04***)
Feed types	R² = 0.1974 (P = 1e-04***)	R² = 0.0882 (P = 1e-04***)
Farms	R² = 0.0647 (P = 1e-04***)	R² = 0.0591 (P = 1e-04***)

*P < 0.05; **P < 0.01; ***P < 0.001