Contents: 1. Neoplasms in Fish. 2. Evaluation of different RTPCR assays for diagnosis of carrier infection of Nodavirus (MrNV) and Extra Small Virus (XSV) in Macrobrachium rosenbergii in Egypt. 3. New approaches in control of mastitis in dairy animals. 4. Climatic change and its impact on fish. 5. Increasing catfish production as a try to combat growth crayfish in the River Nile and its branches. 6. Fish production in the presumed lake of qattara depression. 7. ...