Treatment¹

P-value²

Item

CON

BOV

BOVD

COMB

SEM

TRT

Linear

E. coli O157:H7

Prevalence, %

10.0

9.2

13.3

8.2

0.73

0.50

Concentration, Log CFU/g

2.26^a

1.04^ab

0.13^b

0.49^b

0.46

<0.01

<0.01

Non-O157 Prevalence, %

O26

61.7^a

54.3^a

36.3^b

51.3^ab

0.09

<0.01

O45

67.9^a

72.8^a

45.0^b

72.5^a

0.02

0.03