Uso de probiótico sobre a ativação de células T e controle de Salmonella Minnesota em frangos de corte / Use of probiotics on the T cells activation and Salmonella Minnesota control in broiler chickens
Pesqui. vet. bras
; 33(1): 11-14, Jan. 2013. tab
Article
in Portuguese
| LILACS
| ID: lil-668085
Responsible library:
BR68.1
RESUMO
Para avaliar o efeito do probiótico sobre a resposta imunológica de frangos de corte desafiados com Salmonella Minnesota (SM), 60 frangos foram divididos em três grupos CN- (controle negativo) aves que não foram inoculadas com SM, CP- (controle positivo) aves inoculadas com SM e Probiótico- aves suplementadas na ração com probiótico composto de Lactobacillus acidophilus, L. plantarium, L. rhamnosus, L. bulgaricus, Enterococcus faecium, Streptococcus thermophilus e Bifidobacterium bifidum e desafiadas com SM. Aos 14 dias foi realizada a inoculação com SM e aos 7 e 35 dias foram quantificadas células caliciformes, CD4+ e CD8+ na mucosa intestinal do íleo e ceco. Aves suplementadas com probióticos aos 7 dias de idade apresentaram aumento significativo (P≤0,05) de células caliciformes e CD4+ no íleo e de células CD8+ no ceco. Aos 35 dias houve aumento significativo (P≤0,05) das células CD8+ nas aves inoculadas do CN e Probiótico. A utilização de probióticos proporcionou redução significativa (P≤0,05) da contagem de Salmonella sp.
ABSTRACT
To evaluate the effect of probiotics on the immune response of broiler chickens challenged with Salmonella Minnesota (SM), 60 chickens were divided into three groups CN - Birds that were not inoculated with SM (negative control), CP - birds inoculated with SM (positive control) and Probiotic- birds supplemented with probiotic consisting of Lactobacillus acidophilus, L. plantarium, L. rhamnosus, L. bulgaricus, Enterococcus faecium, Streptococcus thermophilus and Bifidobacterium bifidum in diet and inoculated with SM. At 14 days the birds were challenged with SM, and at 7 and 35 days were quantified goblet cells, CD4 + and CD8 + intestinal mucosa of the ileum and cecum. Birds supplemented with probiotics, at 7 days of age showed a significant increase (P≤0.05) of goblet cells in the ileum and CD4 + and CD8 + cells in the cecum. At 35 days there were significant (P≤0.05) of CD8 + cells in birds inoculated on CN and Probiotic. The use of probiotics provided a significant reduction (P≤0.05) of Salmonella sp. counts.
Full text:
Available
Collection:
International databases
Health context:
Neglected Diseases
Health problem:
Neglected Diseases
/
Zoonoses
Database:
LILACS
Main subject:
Salmonella
/
Chickens
/
Probiotics
/
Food Preservation
Limits:
Animals
Language:
Portuguese
Journal:
Pesqui. vet. bras
Journal subject:
Veterinary Medicine
Year:
2013
Document type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Federal do Paraná/BR