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Table 1 The experimental design of a study aiming to scrutinise the effect of different feed related prophylactic measures in pigs exposed to three pathogenic serotypes of E. coli via the environment. The pigs were weaned on living day 35.

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

 

Exposed to

Feed

Group

Pathogenic E. coli

Non-pathogenic E. coli

Structure

Heat processed (75°C for 20 sek)

Protein (%)

ZnO (2500 ppm)

Lactose

A

-

-

Pelletedc

Yes

15.5

-

-

B

Yesa

-

Pelletedc

Yes

15.5

Yes

-

C

Yesa

-

Meald

-

14.5

-

Yes

D

Yesa

-

Pelletedc

Yes

15.5

-

-

E

Yes

Yesb

Pelletedc

Yes

15.5

-

-

  1. a) E. coli O147; K89, STb at the day of weaning;
  2. E. coli O141; K85, STb, VT2 and E. coli O149; K91, K88, STa, STb, LT three days post weaning
  3. b) A mixture of 106 CFU of each of 60 defined non pathogenic strains of E. coli given per os.
  4. c) Startgris Fiber, Lantmännen, Svalöv, Sweden
  5. d) Meal feed with lactose, dietary fibres and char cole (Nibble, Tillberga, Sweden)
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Acta Veterinaria Scandinavica

ISSN: 1751-0147