الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Aquaculture is currently considered the largest single source of fish supply in Egypt. Where, fish is one of the animal origin proteins, which is characterized by their content of high quality animal protein, minerals, vitamins, essential amino acids and omega-3 fatty acids.
The present study was conducted to throw light on the possible drastic effects of erythromycin (macrolide antibiotic) and copper sulfate (disinfectant) on hematological, some immunological, some biochemical parameters in Nile catfish (Clarias gariepinus) and their histopathological changes in liver, kidneys and gills. Moreover, attempting to ameliorate these possible side effects in fish, this study was also undertaken to determine the efficacy of garlic extract (Allium sativum L) as an alternative to antibiotics (to decrease resistance to erythromycin by Pseudomonas aeruginosa) and disinfectants commonly used in Nile catfish aquaculture. As well as, to evaluate garlic immunostimulatory effect on C. gariepinus disease resistance to Pseudomonas aeruginosa.
This study was held on a total number of 210 healthy Clarais gariepinus with an average body weight of (150±5 gm), which were randomly allocated into 7 equal groups (each.