Probiotic supplementation causes hematological changes and improves non-specific immunity in Brycon amazonicus
Acta sci., Biol. sci
;
42: e52473, fev. 2020. tab, graf
Artículo
en Inglés
| LILACS, VETINDEX
| ID: biblio-1460960
ABSTRACT
A commercialprobioticcontaining Bacillussubtilis(109 CFU g-1) was evaluated incaged matrinxã,Bryconamazonicus,by measuring hematological parametersand macrophage activity after 42 and 84 days after feeding. The product wasadded tocommercial feed using 2%soybean oil as a protectant. A randomized three-treatmentexperiment was performed using fourreplicates per treatment. The groups included (a) control without probiotic, (b) 5 g kg-1probiotic, and (c) 10 g kg-1probiotic. Forhematological analysis,eightfishper treatmentwere used to determinetotal cell count (RBC); thrombocytes, differential, and total leukocyte count (TLC); hematocrit (Htc); hemoglobin tax; mean corpuscular volume (MCV); and mean corpuscular hemoglobin concentration (MCHC). Furthermore, plasma cortisol and glucose levels were measured in blood samples. Macrophage phagocytic activity was evaluated by injecting Saccharomyces cerevisiae(11,000 cells in a 3 mLvolume) into the coelomic cavity incubating for 8hours.Addition of probiotics to the diet of caged matrinxã altered the Htc, RBC, MCV, MCHC, TLC, lymphocyte, and eosinophil values. We observed increased cortisol and glucose levels and phagocytic activity, but no increase in the phagocytic index. We thus conclude that supplementing caged Brycon amazonicuswith probiotics improves their non-specific immunity and alters blood profiles.
Texto completo:
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Índice:
LILACS (Américas)
Asunto principal:
Probióticos
/
Characidae
/
Inmunidad
Tipo de estudio:
Estudio de etiología
Límite:
Animales
Idioma:
Inglés
Revista:
Acta sci., Biol. sci
Año:
2020
Tipo del documento:
Artículo
/
Documento de proyecto
Institución/País de afiliación:
Agencia Paulista de Tecnologia dos Agronegócios/BR
/
EmpresaBrasileira de Pesquisa Agropecuária/BR
/
Serviço Nacional de Aprendizagem Rural Administração Regional/BR
/
Universidade Anhembi Morumbi/BR
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