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¹ Department of Clinical Pathology, Animal Health Research Institute (AHRI), Zagazig branch, Agriculture Research Centre (ARC), Egypt
² Department of Biochemistry, Animal Health Research Institute (AHRI) Zagazig branch, Agriculture Research center (ARC), Egypt
³ Department of Fish health, Animal Health Research Institute (AHRI) Zagazig branch, Agriculture Research center (ARC), Egypt
⁴ Department of Clinical Pathology, Faculty of Veterinary Medicine, kafr El-Sheikh University, Egypt
⁵ Department of Pathology, Animal Health Research Institute (AHRI) Zagazig branch, Agriculture Research center (ARC), Egypt DOI : 10.4194/AQUAST1940 Viewed : 49 - Downloaded : 46 Aquatic meals participate in food security and nutrition. The economic dimension greatly influences the sustainability of the aquaculture industry. This study aimed to assess the effects of partial substitution of soybean meal (SBM) with cottonseed meal (CSM) supplemented with ferrous sulfate (FS) on the growth performance and health status of Nile tilapia. One hundred and fifty Nile tilapia (Oreochromis niloticus) were split equally into five group (triplicated). Each group was fed one of the following isonitrogenous isolipid diet; diet1 (0% CSM), diet2 (20% CSM), Diets3 (20% CSM with 580 mg/kg (FS), diet4 (50% CSM), and diet5 (50% CSM with 580 mg/kg FS) of total protein for two months. In comparison to the control group, Statistically significant (p<0.05) improvements in growth performance, hemogram, and leukogram, as well as, the levels of ALT, AST, urea, creatinine, total protein, MDA, and GSH-px were observed in the third treatment . Histopathologically, it showed the highest values of villus height, width, and surface absorption area with normal architecture and cellular details. On the other hand, fish fed diet4 had the lowest growth rat with microcytic normochromic anemia and decreased villus height and width. The groups that fed CSM showed lower cholesterol levels. In conclusion, CSM inclusion with FS supplementation enhanced growth and health parameters. Keywords : Nile tilapia Cottonseed meal Gossypol Ferrous sulfate