Efficacy of a commercial competitive exclusion product against Campylobacter jejuni.
1. Newly-hatched broiler chicks were treated orally with a commercial competitive exclusion product (Broilact) in 3 replicate trials 2. After 24 h the treated chicks and untreated control chicks were challenged orally with approximately 10(4) cfu of Campylobacter jejuni. 3. The caeca of the birds were examined quantitatively for campylobacter 12 d after the challenge. 4. In 3 separate trials, the treatment prevented or reduced colonisation of the challenge organisms in the caeca. The percentage of colonised birds varied from 0% to 62% in the treated groups and was 100% in the control groups. The average number of campylobacter was considerably lower in the treated groups than in the control groups.
Hakkinen
M
M
National Veterinary and Food Research Institute, Helsinki, Finland. marjaana.hakkinen@eela.fi
Schneitz
C
C
D000284:Administration, Oral; D000818:Animals; D016123:Campylobacter jejuni / Q000254:growth & development*; D002432:Cecum / Q000382:microbiology; D002645:Chickens / Q000382:microbiology*; D005260:Female; D006799:Housing, Animal; D007422:Intestines / Q000382:microbiology*; D008297:Male; D010572:Pest Control, Biological