Effect of magnetized water in blood picture of common carp Cyprinus carpio infected with injected Aeromones hydrophila

Abstract

The present study was conducted in the fish diseases laboratory of College of Veterinary Medicine-University of Baghdad to investigate the effect of magnetized treated water on common carp Cyprinus carpio infected with Aeromonas hydrophila.Total of 80 specimens of common carp Cyprinus carpio were used ranges between 142-156 gm in weight and between 22-27cm in length. Fish were distributed randomly with ten fish to every aquarium upon four. First treatment considered control treatment free of magnetized water while the second treatment contained magnetized treated water with 500 gauss, third treatment contained magnetized treated water with1000 gauss, forth treatment contained magnetized treated water with1500 gauss with two replicates for each treatment through the period of experiment attain four weeks. The experiment represented by induce the infection by intramuscular injection of the bacteria in the site of left behind the front edge of the dorsal fin with dose of 107 cfu/100 gm of fish body weight. Blood picture were examined weekly and description of the clinical and macroscopic signs and survival rate. Statistical analysis results show presence of significant differences p≤0.01 of blood picture results of magnetized treated water treatment compared with control, experimental results indicate to presence of improvement of clinical and macroscopically signs and increase of survival rate of magnetized treated water compared with control.