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[ 1 ] - The study of some blood immune factors of Nile tilapia, Oreochromis niloticus during the replacement of diatary fish meal with blood powder

The aim of this study was to evaluate the effect of substituting the dietary fish meal with blood powder on some blood immune factors of Nile tilapia. 150 speciemns of tilapia (30 ± 0.5 g) were fed diets containing 0 (control group), 25, 50, 75, and 100 % of blood powder, each in three replicates for 8 weeks. After this period, fish were anesthetized and the blood samples were taken from the ca...