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Table 3a Incidence of diarrhea in one uninfected control group and four groups exposed to pathogenic serotypes of E. coli in connection with weaning (I). One infected group was left as an infected control group, while the other three groups were given feed related prophylactics (for details see Table 1). Comparisons with the infected control group are hatched. The table also shows (II) the incidence of diarrhoea in exposed pigs (n = 24) with respect to litter of origin (1–6). For both categories the presence of the F4-receptor in the intestine is given.

From: Aspects on Feed Related Prophylactic Measures Aiming to Prevent Post Weaning Diarrhoea in Pigs

Group/Litter

Ratio F4 Pos/Neg

Pigs

Days

  

At risk

With diarrhea

At risk

With diarrhea

Significance of difference

  

(n)

(n)

(%)

(n)

(n)

(%)

     

I) Group

       

B

C

D

E

 

   A: Uninfected control

4/2

6

0

0%

84

0

0%

***

***

***

***

 

   B: ZnO

5/1

6

5

83%

84

38

45%

   

**

 

   C: Meal feed

4/2

6

5

83%

83

30

36%

   

*

 

   D: Infected control

4/2

6

6

100%

75

37

49%

   

**

 

   E: Probiotic

3/3

6

6

100%

84

20

24%

     

II) Litter (exposed pigs)

       

2

3

4

5

6

   1

2/2

4

4

100%

56

24

43%

*

    

   2

0/4

4

4

100%

56

13

23%

 

*

  

**

   3

4/0

4

4

100%

56

25

45%

     

   4

4/0

4

4

100%

56

18

32%

    

*

   5

2/2

4

3

75%

56

20

36%

     

   6

4/0

4

4

100%

46

25

51%

     
  1. Significant differences: * = p < 0.05; ** = p < 0.01 and *** = p < 0.001 (only shown at the row with the lowest group or litter number)