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- Title
Study of gross and histopathological changes in Cyprinus carpio infected by non- hemolytic Streptococcus Part 1: Isolation and Identification of non-hemolytic Streptococcus.
- Authors
Al-Taee, Asaad M. R.; Al-Mayah, Ali A. S.; Khadban, Faiha S.
- Abstract
Twenty four of non- hemolytic Streptococcus was isolated from the pond of healthy carp of Marine Science Center- Basrah University. The bacteria were identified depending on colonies morphology of growing isolates on Brain Heart Infusion (BHI) agar. Colonies were small, round and convex shape. The cells of non- hemolytic Streptococcus were Gram positive, and may occur in pairs or chains. The cells are spherical or ovoid shape and small. Sixty fishes of common carp (Cyprinus carpio) were obtained from the farm of Marine Science Center, University of Basrah. These fishes were divided into six groups (10 fishes/20 liters aquaria). One of those groups was injected intraperitoneally (I.P.) with an isolate of non-hemolytic Streptococcus at a concentration of 1 X 104 CFU/ ml. The other two groups were inoculated with 2.5 X 107 CFU/ ml of the same isolate via water pollution, one with and the other without skin abrasion. The other three groups were left as control and the experimental period was 35 days. The mortality rate was 100% in the I.P. injected group during the first week of the experiment, while nil in the other groups.
- Subjects
STREPTOCOCCUS; CARP; COLONIES (Biology); GRAM-positive bacteria; STREPTOCOCCACEAE
- Publication
Basrah Journal of Agricultural Sciences, 2010, Vol 23, p81
- ISSN
1814-5868
- Publication type
Article