Dietary choline requirement of juvenile narrow-clawed crayfish (Astacus leptodactylus) in a recirculating aquaculture system

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JALILI REZA; AGH NASER; IMANI AHMAD; NOORI FARZANEH

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Journal: AQUATIC PHYSIOLOGY AND BIOTECHNOLOGY Year:2020 | Volume:7 | Issue:4 Page(s): 41-61

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Title

Dietary choline requirement of juvenile narrow-clawed crayfish (Astacus leptodactylus) in a recirculating aquaculture system

Author(s)

JALILI REZA | AGH NASER | IMANI AHMAD | NOORI FARZANEH | Issue Writer Certificate

Keywords

Nutrient RequirementQ1

CholineQ1

CrayfishQ2

Astacus leptodactylusQ2

Abstract

It has been shown a dietary Choline is essential for several crustacean species. However, the Choline requirement of narrow-clawed Crayfish has not been reported. Therefore, a 12-week feeding trial was conducted to determine the dietary Choline requirement of narrow-clawed Crayfish. Juvenile Crayfish with an average body weight of 13. 8± 0. 9g were intensively stocked in an indoor recirculating aquaculture system consisting of 12 tanks. Four experimental diets were formulated to contain graded levels of dietary Choline (0, 0. 2, 0. 4 and 0. 8% Choline chloride). Results showed a Crayfish fed diet with 0. 0 and 0. 2 % Choline produced the highest and the lowest growth indices and enzymes activity including protease and amylase, respectively (P<0. 05). With an increase of Choline content of experimental diets (0. 4 and 0. 8 %), no significant improvement was observed regarding growth indices, protease, and amylase activity (P>0. 05). However, no significant differences were observed in survival rate and lipase activity of various experimental groups (P>0. 05). In conclusion, the results indicated that dietary inclusion of 0. 2% Choline would improve growth performance and digestive enzymes activity of juvenile narrow-clawed Crayfish reared under intensive condition.

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APA: Copy

JALILI, REZA, AGH, NASER, IMANI, AHMAD, & NOORI, FARZANEH. (2020). Dietary choline requirement of juvenile narrow-clawed crayfish (Astacus leptodactylus) in a recirculating aquaculture system. AQUATIC PHYSIOLOGY AND BIOTECHNOLOGY, 7(4 ), 41-61. SID. https://sid.ir/paper/400032/en

Vancouver: Copy

JALILI REZA, AGH NASER, IMANI AHMAD, NOORI FARZANEH. Dietary choline requirement of juvenile narrow-clawed crayfish (Astacus leptodactylus) in a recirculating aquaculture system. AQUATIC PHYSIOLOGY AND BIOTECHNOLOGY[Internet]. 2020;7(4 ):41-61. Available from: https://sid.ir/paper/400032/en

IEEE: Copy

REZA JALILI, NASER AGH, AHMAD IMANI, and FARZANEH NOORI, “Dietary choline requirement of juvenile narrow-clawed crayfish (Astacus leptodactylus) in a recirculating aquaculture system,” AQUATIC PHYSIOLOGY AND BIOTECHNOLOGY, vol. 7, no. 4 , pp. 41–61, 2020, [Online]. Available: https://sid.ir/paper/400032/en

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