Evaluation the Ozone Treatment To Control the Infection of Saprolegniasis in Cyprinus carpio L

Autor:	Sanaa A. Mustafa, Ali M Kane, Sabah Mahmood Hamad Al-Shammari
Rok vydání:	2019
Předmět:	History chemistry.chemical_compound Veterinary medicine Ozone biology chemistry biology.organism_classification Computer Science Applications Education Cyprinus
Zdroj:	Journal of Physics: Conference Series. 1294:062049
ISSN:	1742-6596 1742-6588
Popis:	The objective of present study is to set up an alternative method of controlling of saprolegniasis, in Cyprinus carpio L. using ozone. For this purpose, six different treatments were applied of 120 fish (20 fish/treatment), of which three infected with Saprolegnia spp. (2×104 zoospors/l) and were treated with ozone (O3) in concentrations of 0.25, 0.50 and 0.75 mg l−1 (1hour), one reference treatment with formalin (0.15 ml l−1, 30 min), two treatments one as positive control (infected with Saprolegnia spp. without disinfectants) and one as negative control without any disinfectants. After 14 days of treatment with ozone and formalin, blood samples were collected from fish for hematological, biochemical and Immunological tests. Survival rate was also studied. Considerable changes have been recorded in the mean values of blood indices. RBCs count and Hemoglobin content, were found significantly increased (p−1 showed the highest survival rate (90%) followed by formalin treatment (80%). Survival rate of the control group (without disinfectant) was 20% and there was a significant difference (P
Databáze:	OpenAIRE
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