The effects on growth and survival of probiotic Bacillus spp. fed to Persian sturgeon (Acipencer persicus) larvae.
Journal Title: Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society - Year 2011, Vol 4, Issue 1
Abstract
This study addressed if sturgeon larvae grew and survived better when fed a probiotic. Bacillus spp. were bioencapsulated in Daphnia magna (Straus 1820) and fed to Acipencer persicus (Borodin 1897) larvae. Bacillus bacteria (three species in a commercial preparation, Protexin Aquatic) were bioencapsulated within Daphnia at three concentrations by holding the Daphnia in suspensions of 1×107, 2×107 or 3×107 bacteria per milliliter for 10 hours. The sturgeon larvae were fed one of the three probiotic treatments at a level of 30 percent body weight 5 times a day. The growth and survival of larvae fed the protbiotic enriched Daphnia were compared to those larvae fed a control treatment of unbioencapsulated Daphnia magna. The results showed that larvae fed the probiotic Bacillus spp. had increased final body weight and specific growth rate in comparison to control treatment. The probiotic bacillus also had significant positive effects on daily growth ratio, daily growth coefficient, average weight gain and survival in comparison to those fed the control treatment. The food conversation ratio was the one factor that decreased significantly in comparison with the control treatment. The amount of probiotic used did not improve performance, so larviculture can be increased merely by the addition of low level of probiotics.
Authors and Affiliations
Moein Faramarzi, Hojatollah Jafaryan, Amin Farah, Mohammad Boloki, Farnaz Iranshahi
Keywords
Related Articles
- EP ID EP103030
- DOI -
- Views 114
- Downloads 0
Reproduction of Persian Gulf anemone fish (Amphiprion clarkii) in captive system
The present study was carried out to assess the reproduction of Persian Gulf anemone fish, Amphiprion clarkii (Bennett, 1830), in captive conditions with artificial features. Persian Gulf, having good relation with India...
Comparative studies of the global ecological state variation of the aquatic environment in the Crişuri Hydrographic Space between 2007 and 2009.
The paper presents a comparative study regarding the evolution across time of the quality of aquatic eco-systems in the Crişuri Hydrographic Space (CHS), between 2007 and 2009. Having as a goal a real and complete...
Frequency and polymorphism of Hassall’s corpuscles in normal thymus of nutria (Myocastor coypus)
Thymus from three clinically healthy 12-month-old age nutria were collected and histologically processed. Microscopic examination showed that the thymus contains numerous Hassall’s corpuscles in various stages of develop...
The effects of Amax yeast fed to Persian sturgeon (Acipencer persicus) larvae via bioenrichment of Daphnia [sup][/sup]magna
This study was carried out to evaluate the effect of the product of commercial live bakers’ yeast (Saccharomyces cerevisiae) so called Amax on the growth and survival of Persian sturgeon (Acipenser persicus) larvae...
Rotifer (Brachionus plicatilis) culture in batch system with suspension of algae (Nannochloropsis oculata) and bakery yeast (Saccharomyces cerevisiae
The rotifer Brachionus plicatilis is commonly cultured and used in hatcheries as the first feed of marine and fresh water fish larvae. Several cultivation techniques have been developed and applied in hatcheries by aqua...