Publication Date:
2021-05-19
Description:
According to the importance of micro-algae in aquatic feed such as fish in this study have been investigated
Preparation of useful algae powder or concentrate for breeding silver carp , their impact on the growth of silver
carp , rate per unit area and estimate n economic Development. Different algal species were isolated from
hydrothermal fish farms, then were purified and mass culture .
The next step microalgae were dried and powdered by spray dryer and were examined the fish feeding on them.
During this study, 6 species of chlorophyt( Scenedesmus obliquus, Scenedesmus acuminatus, Chlorella vulgaris,
Pediastrum boryanum, Pandorina morum, Ankistrodesmus falcatus) ,3 species of cyanophyta ( Anabaena flosaquae,
Oscillatoria agardhi and Spirulina platensis) and 1 species of Bacillariophta ( Cyclotella meneghiniana
were isolated from.Green algae and Blue -green algae were cultured in Zaindr medium, diatoms were cultured
in Zaindr medium but with water of Anzali logoon and also in F2 medium with artificial sea water and spirulina
was cultured in Zarouk medium.
Microalgae were cultures then concentrated.Then the impact was examined on fish silver carp 2 to 3 grams. The
results showed that Cyclotella has a greater role in the growth of silver carp and Anabaena floes aquae and
Spirulina platensis tend to growth less than cyclotella. Scenedesmus obliquus and Scenedesmus acuminatus were
respectively next algae that showed the greatest impact on fish growth. Scenedesmus obliquus feed rate was
greater than any other algae for Daphnia.
Description:
Iranian Fisheries Science Research Institute
Description:
Published
Keywords:
Silver carp
;
Algal concentrate
;
Micro-algae
;
Scenedesmus obliquus
;
Scenedesmus acuminatus
;
Chlorella vulgaris
;
Pediastrum boryanum
;
Pandorina morum
;
Ankistrodesmus falcatus
;
Spirulina platensis
;
Oscillatoria agardhi
;
Cyclotella meneghiniana
;
Preparation
;
Feed
Repository Name:
AquaDocs
Type:
Report
,
Refereed
Format:
73pp.
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