Effect of Stocking Density on Growth Performance and Oxygen Consumption of Nile Tilapia (Oreochromis niloticus L.) under Greenhouse Conditions

Juan Fernando Garcia-Trejo, Genaro Martin Soto-Zarazua, Enrique Rico-Garcia, Adan Mercado-Luna, Manuel Toledano-Ayala


DOI: https://doi.org/10.3856/vol44-issue1-fulltext-20

Abstract


The effects of stocking density on oxygen consumption and growth in Tilapia (Oreochromis niloticus) under greenhouse conditions were investigated in this experiment. Fingerlings with 1.57±0.14 g average body humid weight were stocked in 972 L., rectangular plastic tanks placed inside a polyethylene greenhouse 504 m2, at three densities 90 (T1), 180 (T2), and 270 (T3) ind/m3 (biomass of 0.14, 0.28 and 0.42 kg m-3). Fish were feeding with a commercial diet for Tilapia (Api-Tilapia 1, MaltaCleyton® with 50%, protein and 12% lipid) to apparent satiation, three times a day, for 60 days. At the end 10 individuals of each treatment were selected in order to measure aerobic metabolism using closed respirometric chamber technique with constant temperature and a knowing volume (1L). It was found that growth rate of T1 (0.38 g day-1; 4.65% day-1) and T2 (0.21 g day-1; 3.68% day-1) was significantly higher than T3 (0.11 g day-1; 2.67% day-1). Oxygen consumption measurements over 24-hours showed that a significant difference exist between treatments T1=0.35± 0.17, T2= 0.26±0.17, and T3=0.20±0.13. Thus, according to the results it is possible to say that the culture of Tilapia at a density of 90 ind/m3 can be considered ideal for increase production of O. niloticus under greenhouse conditions.


Garcia-Trejo J, Soto-Zarazua G, Rico-Garcia E, Mercado-Luna A, Toledano-Ayala M. Effect of Stocking Density on Growth Performance and Oxygen Consumption of Nile Tilapia (Oreochromis niloticus L.) under Greenhouse Conditions. Lat. Am. J. Aquat. Res.. 2017;44(1). Available from: doi:10.3856/vol44-issue1-fulltext-20 [Accessed 20 Jan. 2019].
Garcia-Trejo, J., Soto-Zarazua, G., Rico-Garcia, E., Mercado-Luna, A., & Toledano-Ayala, M. (2017). Effect of Stocking Density on Growth Performance and Oxygen Consumption of Nile Tilapia (Oreochromis niloticus L.) under Greenhouse Conditions. Latin American Journal of Aquatic Research, 44(1). doi:http://dx.doi.org/10.3856/vol44-issue1-fulltext-20