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Journal of Fisheries and Aquatic Science

Year: 2017 | Volume: 12 | Issue: 4 | Page No.: 184-190
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Authors

Niti Chuchird

Niti Chuchird

Hataitip Niyamosatha

Tirawat Rairat

Arunothai Keetanon

Keywords

Research Article

Effect of Dietary Phytobiotics Products on Growth, Immune Responses and Vibriosis Resistance in Litopenaeus vannamei

Niti Chuchird Niti Chuchird's LiveDNA, Hataitip Niyamosatha, Tirawat Rairat and Arunothai Keetanon
Background and Objective: Phytobiotic products have been found to have anti-bacterial activity, improved immune responses and the survival rate of some aquatic organisms. This study aimed to explore the effects of phytobiotics products from spent hops and yeast cell wall (HY) and Grape Pomace (GP), which are polyphenol-rich feed additives, on the health and tolerance to Vibrio infection of Pacific white shrimp under laboratory conditions. Materials and Methods: Shrimp post-larvae 12 were stocked in 24×500 L fiberglass tank (50 shrimp/tank) and salinity were maintained at 20-25 ppt. The shrimps were randomly distributed into four groups (six replicates/treatment) and fed four times daily with six experimental diets contained 400 ppm HY, 400 ppm GP, 800 ppm GP, or none of these supplements (control diet). After 60 days, 30 shrimp from each tank were sampled and stocked in new 24 tanks. Vibrio parahaemolyticus was added into each tank to obtain a final concentration of 104 CFU mL–1. Immune parameters and survival rate after Vibrio challenged test were compared using one-way ANOVA model followed by SPSS (Version 20). Results: The body weights of shrimp raised on 400 and 800 ppm, GP were significantly higher than the control group p<0.05. Shrimp fed with 400 ppm HY- and 800 ppm GP had significantly higher survival rates than the control group p<0.05. The shrimp fed with 400 ppm HY also had the highest immune responses. Conclusion: The present study indicated that both phytobiotics feed additives tested had positive effects on shrimp health.
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