Different Levels of Probiotics Affect Growth, Survival and Body Composition of Nile Tilapia (Oreochromis Niloticus) Cultured In Low Input Ponds

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dc.contributor.authorOpiyo, Mary A
dc.contributor.authorJumbe, James
dc.contributor.authorNgugi, Charles C
dc.contributor.authorCharo-Karisa, Harrison
dc.date.accessioned2023-07-14T08:00:04Z
dc.date.available2023-07-14T08:00:04Z
dc.date.issued2019
dc.descriptionArticleen_US
dc.description.abstractA 7-month experiment was carried out to determine the effects of different levels of probiotics (baker’s yeast (Saccharomyces cerevisiae) and Bacillus subtilis) on Nile tilapia (Oreochromis niloticus) reared in low input ponds. Monosex male fingerlings (40 g) were randomly distributed into 28, 1.25 m3 net cages at 50 fish m−3 and fed twice daily at 3% body weight on seven isonitrogenous (28% crude protein) diets supplemented with either Saccharomyces cerevisiae (1 × 1010 CFU g−1) or Bacillus subtilis (1 × 109 CFU g−1) at different levels: Diet 0 (control); Diet 1–3 were supplemented with S. cerevisiae at 2 g kg −1 (Diet 1); 4 g kg−1 (Diet 2) and 6 g kg −1 (Diet 3) whereas Diet 4–6 were supplemented with B. subtilis at 5 g kg−1 (Diet 4); 10 g kg−1 (Diet 5) and 15 g kg−1 (Diet 6). Higher final weight (255.31 ± 3.19), Specific Growth rates (SGR) (0.77±0.01) and better Feed Conversion Ratio (FCR) (1.61 ± 0.02) were recorded in fish fed on Diet 2 followed by fish fed on Diet 5. Fish fed on probiotic- supplemented diets had significantly better growth, nutrient utilization and FCR compared to fish fed on the control diet (P < 0.05). Probiotic supplementation significantly affected the body composition of the fish (P < 0.05). S. cerevisiae led to significantly high protein (86.06%) at 4 g kg−1 (Diet 2) (P < 0.05) while B. subtilis led to significantly higher protein (89.40%) at 5 g kg−1 (Diet 4) (P < 0.05). Crude lipid and ash content were significantly lower in the fish fed on probiotic supplemented diets (P < 0.05) compared to the control. This study has demonstrated that the application of probiotics in diets of Nile tilapia in low input ponds promotes growth and enhances body composition. The two probiotics have got different effects depending on the level of application. S. cerevisiae exhibited the best performance at 4 g kg−1 while B. subtilis had the best performance at 10 g kg−en_US
dc.description.sponsorshipNational Research Fund (NRF) (POST-GRADUATE GRANTS: 2016/2017 FY) through Kenyatta University and Kenya Marine and Fisheries Research Institute (KMFRI) through GoK Seed Fundsen_US
dc.identifier.citationOpiyo, M. A., Jumbe, J., Ngugi, C. C., & Charo-Karisa, H. (2019). Different levels of probiotics affect growth, survival and body composition of Nile tilapia (Oreochromis niloticus) cultured in low input ponds. Scientific African, 4, e00103.en_US
dc.identifier.otherhttps://doi.org/10.1016/j.sciaf.2019.e00103
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/26220
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.subjectBacillus subtilisen_US
dc.subjectNile tilapiaen_US
dc.subjectProbioticsen_US
dc.subjectSaccharomyces cerevisiaeen_US
dc.subjectGrowthen_US
dc.subjectNutrient utilizationen_US
dc.titleDifferent Levels of Probiotics Affect Growth, Survival and Body Composition of Nile Tilapia (Oreochromis Niloticus) Cultured In Low Input Pondsen_US
dc.typeArticleen_US
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