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Table 6 Antimicrobial treatments during the feed trial categorized by phase and reason for treatment, including an overall total and number of unique piglets treated and number of piglets receiving a repeated treatment with an antimicrobial during the trial. Piglets in the Control group were fed a standard diet, whereas piglets in the Enzyme treated group were fed an adapted diet with more soybean meal in phase 1 and 2, and a decrease level of 65 kcal/kg net energy in phase 3. Different superscript letters indicate statistically significant differences (P < 0.05)

From: Supplementation of a β-mannanase enzyme reduces post-weaning diarrhea and antibiotic use in piglets on an alternative diet with additional soybean meal

Treatment

Control

Enzyme

P-value

Feeding phase

Ph-1

Ph-2

Ph-3

Overall

Ph-1

Ph-2

Ph-3

Overall

 

Diarrhea

74

0

0

74 a

33

0

0

33 a

P = 0.282

Small/unthrifty

8

9

8

25 a

6

7

6

19 a

P = 1.000

Leg infection

3

8

5

16 a

1

2

3

6 a

P = 1.000

Meningitis

0

2

1

3 a

0

1

0

1 a

P = 0.283

TOTAL

85

19

14

118 a

40

10

9

59 b

P < 0.001

N pigs treated (%)

80

10

0

90 (20.1) a

40

6

2

48 (10.7) b

P < 0.001

N pigs with repeated treatment (%)

5

9

14

28 (31.1) a

0

4

7

11 (22.9) b

P = 0.009