The effects of different concentrations of probiotic Saccharomyces cerevisia on growth performance and survival rate of rainbow trout (Oncorhynchus mykiss), fry and resistance against salinity

Pooramini, Molook; Kamali, Abolghasem; Hajimoradloo, Abdolmajid; Alizadeh, Morteza; Ghorbani, Rasoul; Hatami, R; Haghparast, Sarah

doi:10.5897/ajb2013.12214

Cited by 6 publications

(2 citation statements)

References 32 publications

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“…However, at higher inclusion levels, 20, 30 and 40% of S. cerevisiae resulted in a decrease in growth performance and nutrient utilization efficiency in Nile tilapia [83]. In a study of rainbow trout fry fed 0, 1, 5 and 10% yeast supplements, a decline in growth performance with supplementation at 10% was recorded in the rainbow trout fry [84]. Further, the study noticed decreased protein and increased ash content in the carcasses with increased yeast supplementation.…”

Section: Saccharomycesmentioning

confidence: 94%

Fungi and Actinobacteria: Alternative Probiotics for Sustainable Aquaculture

Ghosh,

Harikrishnan,

Mukhopadhyay

et al. 2023

Fishes

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Aquatic animals are continually being exposed to stressors under farming conditions, increasing risks to gut health that result in dysbiosis. Since restrictions are imposed on the frequent use of antibiotics in aquaculture, there is emerging demand for economically viable, environmentally safe, and sustainable alternatives for the intensive production of aquaculture species. The application of beneficial microorganisms as probiotics has been suggested and widely practiced in recent times. Bacteria and fungi are ubiquitous microorganisms that can grow in various environments where organic substrates are available. Being rich in nutrients, a fish’s aquatic environment and gastrointestinal tract confer a favorable culture milieu for the microorganisms. However, the colonization and probiotic potential of fungi and mycelial bacteria resembling fungi (actinobacteria), either in the culture environment or within the gastrointestinal tracts of fish, have received less emphasis. Apart from bacilli and lactic acid bacteria, as the most conventionally used probiotics in aquaculture, numerous studies have focused on other promising alternatives. Diverse species of yeasts and molds belonging to the kingdom ‘Fungi’ have been characterized for their prospective roles in nutrition, immunomodulation, and disease prevention in fish. Bioactive compounds such as manno-oligosaccharides and β-glucans are recognized as fungal postbiotics that improve innate immunity and disease resistance in fish. Actinobacteria are known to possess different hydrolytic enzymes and novel secondary metabolites representing their probiotic attributes. The application of these groups in water quality amelioration has also been explored. Thus, this paper presents an overview of the present status of knowledge pertaining to the effects of yeasts (Candida, Cryptococcus, Debaryomyces, Geotrichum, Leucosporidium, Pichia, Rhodosporidium, Rhodotorula, Saccharomyces, Sporidiobolus, Sporobolomyces, Trichosporon and Yarrowialipolytica), molds (Aspergillus spp.) and actinobacteria (Streptomyces) as probiotics in finfish aquaculture, as well as their occurrence within the gastrointestinal tracts of finfish. Furthermore, probiotic mechanisms, selection criteria, and future perspectives on using fungi and actinobacteria as promising probiotics are discussed.

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Section: Saccharomycesmentioning

confidence: 94%

Fungi and Actinobacteria: Alternative Probiotics for Sustainable Aquaculture

Ghosh,

Harikrishnan,

Mukhopadhyay

et al. 2023

Fishes

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“…Growth was determined by measuring the length of 300 fingerlings under study at the beginning and at the end of the experiment, using the formulae of Pooramini et al, (2009Pooramini et al, ( , 2014…”

Section: Determination Of Growth and Survivalmentioning

confidence: 99%

Supplementation of probiotics in Nile tilapia fingerling cultivation subjected to microbial challenge

Jossefa¹,

Nerantzoulis²,

Mussagy³

2023

WIO J. Mar. Sci.

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The intensification of aquaculture has brought about the need to find alternative feed supplement sources to reduce production costs. One of the alternative sources of feed in fish farming is animal manure. However, the use of animal manure may cause health problems in fish cultures. The objective of this study was to determine the effects of probiotics on Nile tilapia fingerlings subjected to microbial challenge using swine manure. Three hundred (300) fingerlings weighing 2±0.05g and measuring 5±0.06 cm, were distributed among four treatments with three replications each. Swine manure was inoculated in water in the proportion of 10 % of fingerlings live weight. Probiotics Saccharomyces cerevisiae and Lactobacillus plantarum were used as ration supplements in the proportions of 0.5 % per 100 g of ration. The results showed no significant differences (P>0.05) in terms of growth between treatments. The inclusion of S. cerevisiae reduced the number of pathogenic bacteria in the intestine of fingerlings and resulted in better production performance. Feed supplementation with L. plantarum had no effect, neither on production, nor on intestinal microbial population. The fingerlings under study showed typical signs of yersiniosis, edwardiellosis and mycobacteriosis. From the experiment it was concluded that the supplementation of the probiotic S. cerevisiae on the Nile tilapia fingerlings treated with swine manure showed a positive effect in the sense that this probiotic avoided the intestinal colonization of fingerlings by pathogenic bacteria. Additionally, the presence of the probiotic seems to promote better grow performance and hence reinforce the results of previous studies on the role of probiotics in aquaculture. More experimental studies are required, particularly in situ experiments, with the addition of other performance analyses linked to the immune response of the fingerlings.

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