Publication Date:
2021-05-19
Description:
This project investigates bacteria effects as probiotics on growth and survival rate and resistance of shrimp
during propagation stages. Bacterial flora were extracted from seawater , water of cultured farms , shrimp
cultured and sludge from private propagation farms different bacteria such as
Vibrio alginolyticus(serotype1-4) Vibrio splendidus I , Vibrio fluvialis ,Vibrio anguillarum ,Vibrio
costicul, Vibrio vulnificus,Vibrio nereis,Vibrio camplbelli,Vibrio natriegens,Vibrio proteolyticus, Vibrio
plegius ,Vibrio fischeri,Aeromonas hydrophila, Aeromonas schuberti,Aeromonas salmonisida, Aeromonas veronii , Pseudomonas pseudoalcaligenes, Pseudomonas chloraphis, Alcaligenes
faecalis, Bacillus megaterium, Bacillus pumilus, Bacillus circulans, Bacillus cereus, Bacillus subtilis, Bacillus licheniformis, Lactobacillus case, Lactobacillus bulgaricus, Lactobacillus delbrukii, Lactobacillus fermentum, Lactobacillus leichmanii, Lactobacillus plantarum, Lactobacillus rhamnosus, Lactobacillus acidophilus, Lactobacillus lactis, Pediococcus acidilactici
were isolated , identified and lyophilized.These bacteria in different experiments were used on shrimp
life cycle stages and live food such as Chaetoceros , Skeletonema and Tetraselmis algae. Some
serotypes of one bacterial species showed various reactions in media and experiment probiotics. Vibrio alginolyticus(serotype1) with 107 cells/ml can increase Tetraselmis sp production during 6 days
to 71% compared to the control experiment without bacteria. Also Vibrio alginolyticus(serotype4) with
105 cells/ml can increase Tetraselmis spp production during 6 days to 389% more than control. Vibrio splendidus could increase 23% shrimp fork length in postlarvae 3 compared control. Vibrio
alginolyticus+ Vibrio fischeri can increase survival , fork lenght and body weight of green tiger shrimp
postlarvae significantly(P〈.05).
Description:
Iranian Fisheries Science Research Institute
Description:
Published
Keywords:
Bacteria
;
Shrimp
;
Algae
;
Probiotic
;
Vibrio alginolyticus
;
Vibrio splendidus
;
Vibrio fluvialis
;
Vibrio anguillarum
;
Vibrio costicul
;
Growth
;
Survival rate
;
Resistance
Repository Name:
AquaDocs
Type:
Report
,
Refereed
Format:
85pp.
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