| Summary: | Dry fish blood (DFB), a by-product from the fish processing industry, is a rich source of nutrients, small protein
molecules and iron. This study aimed to examine the effects of dietary inclusion of canning by-product fish blood on growth
performance and activity of digestive enzymes in L. vannamei with mean initial weight of 4.79±0.12 g. Six diets were
formulated: four diets having poultry meal and soybean meal as the main protein sources contained DFB at 0 (control), 4, 8, and
16% of diet and the reference diets5 and 6contained 4% tuna viscera hydrolysate (TVH) and 16% fish meal, respectively.
Triplicate groups of shrimp (12 shrimp tank-1
) were fed with respective diets five times daily for six weeks. The results showed
that growth of shrimp decreased with increasing level of dry fish blood. Growth performance of shrimp fed 4% DFB was not
significantly different from those fed 4% TVH. Survival rate was not significantly different among treatments (P>0.05). In
summary, dry fish blood could be used as a feed ingredient in shrimp diet at 4% of diet with good growth performance. The
results demonstrated that the high levels of dry fish blood had an effect on feed utilization efficiency, alkaline phosphatase
activity and shrimp growth reduction.
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