Leukocyte response and phagocytic activity in Nile tilapia experimentally infected with Enterococcus sp.
Fish Physiol Biochem
; 35(1): 219-22, 2009 Mar.
Article
em En
| MEDLINE
| ID: mdl-18777139
This study evaluated the total and differential leukocyte counting and the phagocytic activity in Nile tilapia Oreochromis niloticus experimentally injected with Enterococcus sp. in the swim bladder. Fish were distributed in four treatments in triplicates of non-injected fish, fish injected with 1 ml of sterile saline solution 0.65%, and fish injected with 1 x 10(3) and 1 x 10(6) colony-forming units (CFU) of Enterococcus diluted in 1 ml sterile saline. Twenty-four hours after injection, the fish were anesthetized and the blood collected for white blood cell (WBC) counts, differential counting of WBC, and phagocytic activity of blood leukocytes. The increased numbers of WBC and lymphocytes were followed by decreased number of monocyte after infection. The percentages of phagocytic activities in the blood were 55.3 and 55.9%, respectively, in tilapia injected with 1 x 10(3) and 1 x 10(6) CFU/ml.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fagocitose
/
Infecções por Bactérias Gram-Positivas
/
Enterococcus
/
Ciclídeos
/
Doenças dos Peixes
/
Leucócitos
Limite:
Animals
Idioma:
En
Revista:
Fish Physiol Biochem
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Holanda