Effects of probiotic and stocking density on nile tilapia fingerlings (oreochromis niloticus) productive performance.

  • Omar Francisco Prado Rebolledo Universidad de Colima
  • Luis Jorge García Márquez Universidad de Colima
  • Rafael Julio Macedo Barragán Universidad de Colima
  • José Luis García Curiel Universidad de Colima
  • Maximiliano Sánchez Barajas Centro Acuícola Jala
  • Guillermo Téllez Isaías University of Arkansas
Palabras clave: lactobacillus acidophilus, stocking density, growth, feed conversion

Resumen

 

A study was conducted with the purpose to assess the effect of a commercial probiotic and stocking density on productive performance of Nile tilapia (Orechromis niloticus) fingerlings. Fin gerlings were stocked in four 16.56-m3 aerated concrete tanks at two initial densities, low (50 fish/m3) and high (100 fish/m3) and fed four times a day with a commercial food sprayed with 2.6 or 6.6 g/kg food of a commercial probiotic containing strains of Lactobacillus acidophilus and Pediococcus acidilacticii, and inactivated Saccharomyces cerevisiae. Water temperature ranged between 25.9 to 26.1 °C, dissolved oxygen level was 4.95 mg/L and pH value was about 6.9. Daily weight gain, final weight and body length, height and width were greater (P<0.05) in fish reared at low density and added with 2.6 g/kg of probiotic. Specific growth rate was greater (P<0.05) in fish reared at low density without probiotic and in fish reared at high density and fed 6.6 g/kg of probiotic. Inclusion of probiotic improved (P<0.05) feed conversion regardless of stocking density but the cost of feed was significantly increased (P<0.05) by the addition of 6.6 g/kg of probiotic. It can be conclude that the addition of 2.6 g/kg of probiotic improved productive performance of tilapia fingerlings and juveniles rearing at low densities without a significantly increasing the cost of feeding. Productive performance of fish reared at high stocking density could be successfully improved with the addition of 6.6 g/kg of probiotic.

Publicado
2014-06-25
Cómo citar
Prado Rebolledo, O. F., García Márquez, L. J., Macedo Barragán, R. J., García Curiel, J. L., Sánchez Barajas, M., & Téllez Isaías, G. (2014). Effects of probiotic and stocking density on nile tilapia fingerlings (oreochromis niloticus) productive performance. Revista Científica De La Facultad De Ciencias Veterinarias De La Universidad Del Zulia, 24(2). Recuperado a partir de https://produccioncientificaluz.org/index.php/cientifica/article/view/15862
Sección
å∫∂©√€¢®€ƒ∂√€¢#∞