EFFECT OF DIFFERENT FEEDING AND FASTING FREQUENCIES ON GROWTH AND NUTRIENT UTILIZATION for Piaractus brachypomus (Cuvier, 1818)

Jose Ader Gomez Peñaranda, Lucena Vazques Gamboa


DOI: https://doi.org/10.3856/vol44-issue3-fulltext-15

A practical use of the compensatory growth was sought by submitting Piaractus brachypomus at different frequencies of weekly feeding and fasting. To this end,  450 samples were used. Their initial weight was in the rage of 20 ± 2g. The animals were set into five treatments with three replicates: T1 = feed to satiation for 5 days and fasting for 2 days; T2 = feed to satiation for 6 days and fasting 1 day; T3 = feed to satiation for 7 days; T4 = fasting 14 days from the day 28 baseline and subsequent feedback to satiety and TC = feeding following the manufacturer's recommended food tables. Data analysis was performed using repeated measures ANOVA. T1 Individuals showed the worst results of final weight and TCI in comparison to animals following T2 and T3 treatments.  This meant that fasting for two days a week created a negative influence on growth, but fasting for a day T2 did not greatly affect them. The TAD was shown with treatment T4 but only with respect to T3 and TC due to a voluntary increase in food intake after fasting period. By contrast, there were differences between T1, T2 and T3, indicating that individuals of T1 and T2 treatments, voluntarily increased intake after fasting days equaling intake T3 treatment. This fact is of great practical importance, since it would be possible to eliminate food on holidays but increase the ration for the rest of the week.


Gomez Peñaranda J, Vazques Gamboa L. EFFECT OF DIFFERENT FEEDING AND FASTING FREQUENCIES ON GROWTH AND NUTRIENT UTILIZATION for Piaractus brachypomus (Cuvier, 1818). Lat. Am. J. Aquat. Res.. 2017;44(3). Available from: doi:10.3856/vol44-issue3-fulltext-15 [Accessed 20 Jan. 2019].
Gomez Peñaranda, J., & Vazques Gamboa, L. (2017). EFFECT OF DIFFERENT FEEDING AND FASTING FREQUENCIES ON GROWTH AND NUTRIENT UTILIZATION for Piaractus brachypomus (Cuvier, 1818). Latin American Journal of Aquatic Research, 44(3). doi:http://dx.doi.org/10.3856/vol44-issue3-fulltext-15