TABLE 4.

Diversity matrices of the microbiota on the surface of DA pork loins

	Day 0	Day 20	Day 40	p values
				Day 0 vs day 20	Day 0 vs day 40	Day 20 vs day 40
Shannon index	4.97a	5.97	3.20	0.049	0.429	0.049
	(4.92, 5.06)	(5.59, 6.69)	(2.14, 5.45)
Chao index	275	788	438	0.049	0.827	0.275
	(253, 588)	(633, 1275)	(124, 810)
OTU number	275	755	434	0.049	0.827	0.127
	(253, 586)	(604, 1148)	(124, 732)
Phylogenetic diversity	110	378	252	0.049	0.512	0.275
	(80, 222)	(276, 578)	(32, 391)
Evenness index	0.62	0.65	0.45	0.275	0.127	0.049
	(0.54, 0.62)	(0.59, 0.66)	(0.37, 0.57)

^aMedian (minimum, maximum).