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Articles by Mona Saad Zaki
Total Records ( 2 ) for Mona Saad Zaki
  Ahmed Noor El-Deen , Hussien Mohamed Osman , Mona Saad Zaki and Hanan AlyAbo-State
  Background and Objective: Saprolegniosis is considered the major aquatic mycotic harmful disease due to its impact on commercial fish culture. The present investigation was carried out to determine the drug of choice for treatment saprolegniosis in Oreochromis niloticus (O. niloticus). Materials and Methods: The present study was carried out on 500 cultured Nile tilapia Oreochromis niloticus in earthen fish ponds that suffered from saprolegniosis, which is considered as the most important cause of mass mortalities in cultured freshwater fish in winter in Egypt. Results: The fishes were subjected to full clinical, postmortem, identification and hematological and biochemical examination, trials also done for treatment on 240 apparently diseased O. niloticus using humic acid for control of saprolegniosis in a dose of 125 ppm for 10-12 min for 3 successive days as a bath and hydrogen peroxide was given as bath 75 μL L–1 for 10-12 min and sodium chloride was given as bath 375 ppm for 10-12 min for three successive treatments. Conclusion: The treatment of choice for saprolegniosis in affected pond was humic acid which were effective, economic and safe for fish.
  Hussien Abd El-Fattah Mohamed Osman , Abeer Ezzat Mahmoud , Ahmed Esmael Noor El-Deen , Mona Saad Zaki and Tarek Mohamed El-Metenawy
  Background and Objective: Trypanosoma infection in fish considered as the extreme important internal disease affect fishes. The present study focused on trials for treatment of trypanosome infection in African sharptooth catfish with histopathological study of the naturally infested fish. Materials and Methods: A total number of 200 alive catfish with body weight 120±10 g were obtained from private fish farm. The fish subjected to parasitological investigation for trypanosomes. For treatment trials, a total number of 120 naturally infected catfish were divided into 4 groups each 10 were used for treatment trial with Benznidazol I/M (5 mg kg1 b.wt.), bath with Aloe vera leaves aqueous extract (50 and 100 mg L1 for 120 min). Results: The main clinical and postmortem lesions were paleness of the body surface, eroded fins, gulping the atmospheric air and surfacing. Trypanosoma infection caused significant decrease in red blood counts, haemoglobin and PCV. Serum total protein, albumin, globulin concentrations, albumin/globulin (A/G) ratio and cholesterol concentration. Histopathological studies displayed necrotic and inflammatory reaction in gills and skin, C. gariepinus, Oreochromis niloticus, gold fish Carassius auratus and male white mice subjected to experimental infection with trypanosome. The prevalence of trypanosome infection in catfish was 53%. For treatment trials, the results revealed that 100 mg L1 for 120 min was the best treatment for trypanosomiasis. Conclusion: It was concluded that the best treatment for trypanosoma infection in sharptooth, C. gariepius was, bath treatment with Aloe vera ethanol extract (100 mg L1 for 120 min).
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