African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5211

Full Length Research Paper

Effect of Pediococcus parvulus and Candida parapsilosis on growth and survival of tilapia, Oreochromis niloticus and Oreochromis sp.

Antonio Luna-González*, Daniel Quiñónez-Zúñiga, Jesús A. Fierro-Coronado, Héctor A. González-Ocampo, Ángel I. Campa-Córdova, Ma. Del Carmen Flores-Miranda and Viridiana Peraza-Gómez
Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional-Instituto Politécnico Nacional, Unidad Sinaloa, Guasave Sinaloa, Mexico.
Email: [email protected]

  •  Accepted: 29 March 2013
  •  Published: 04 June 2013


This study examined the effect of probiotic lactic acid bacteria (LAB) and yeast on growth and survival of tilapias, Oreochromis niloticus and Oreochromis sp. LAB and yeast were included in the diet. Microorganisms were identified at molecular level. The first bioassay (120 days, weight = 0.18 ± 0.03 g) was done with Oreochromis sp. with a control group, and animals fed with the probiotics (5 × 104, 1 × 10and 1 × 107 CFU/g feed). The second bioassay lasted for 92 days with juveniles of Oreochromis sp. (weight 4.09 ± 0.99 g) and O. niloticus (weight 6.12 ± 0.86 g) and consisted of a control group and animals fed with probiotics (5 × 10CFU/g) daily, every 10 days, and during the first 10 days only. LAB belonged to Pediococcus parvulus and yeast to Candida parapsilosis. In the first bioassay, no significant differences were found in survival and weight of Oreochromis sp. In the second bioassay, no significant differences were found in survival, but, in growth, fish fed with probiotics every 10 days (O. niloticus) and fish fed with probiotics daily and every 10 days (Oreochromis sp.) grew significantly better than the control group. The results indicated that LAB and yeast can be used as a feed additive every 10 days to reduce costs of commercial cultures.


Key words: Oreochromis niloticus, tilapia, probiotics, lactic acid bacteria, yeast.