Effect of different dietary carbohydrate source on growth performance, body indices and activity of digestive enzyme (amylase) of Pangasiandon hypopthalmus
M. Asemani; A. Sepahdari; M. Hafezieh; Sh. Dadgar
In the present study, the effect of seven dietary carbohydrate sources on growth performance, feed utilization and amylase activity of Pangasiandon hypopthalmus was evaluated for 12 weeks. Fish subjected to diets containing raw dextrin and potato starch showed a significantly (p < 0.05) higher growth rate than those fish consuming other experimental diets, except wheat starch diet. Furthermore, fish fed with wheat and corn starch showed significantly higher (p < 0.05) Interaperitoneal fat value than that of fish fed with potato, Alfa and waxy maize starch. Moreover, fish fed with wheat starch had significantly higher (p < 0.05) amylase activity than that of those subjected to other experimental diets, except corn and waxy maize diets. Overall, this study showed that the raw forms of dextrin starch and potato were suitable dietary carbohydrate sources for further scientific studies on the carbohydrate utilisation of P. hypophthalmus.
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