The effect of sodium bentonite on growth, survival and biochemical composition of juvenile beluga (Huso huso)

• Main Authors: Allaf Noverian, H., Khoshkholgh, M., Sotohian, F.
• Format: Article in Journal/Newspaper
• Language: Persian
• Published: 2014
• Subjects: Aquaculture; Biology; Sodium bentonite; Juvenile; Beluga; Huso huso; Growth; Body composition; Survival; Iran; Beluga*
• Online Access: http://hdl.handle.net/1834/39310

For improving the hydro-stability of pelleted feed of juvenile Beluga in confined area and its growth performances, a nutritional experiment was conducted for 8 weeks duration, using sodium bentonite as a binder. In this experiment, four treatments with a level of 0, 1, 1.5 and 2 percent with iso-nitrogenus (45±0.61) and iso-lipedic (16±0.77) were formulated and feed to triplicate group of fish. Three-hundred and seventy five juvenile Beluga of size (22±0.7g) were randomly selected and distributed between 12 fiber glass tanks of 500L capacity. The juvenile beluga which was fed with diet containing 1.5% sodium bentonite had the highest RGR, PER and FER and shown significant with other treatments (p<0.05). The result of this experiment was not shown any significant differences in growth and feed efficiency in treatment (control) and treatment 2%. Body carcass composition, except ash content, did not show noticeable significance differences between treatments (p>0.05).In general, treatment 1.5% sodium bentonite was shown to be the most reliable one.