This analysis evaluates how different feeding rates impact growth and physiological parameters in tambatinga, suggesting optimal rates for improved performance.
The study evaluated the impact of feeding rates (6, 8, 10, and 12% of biomass) on the growth and physiological responses of Colossoma macropomum × Piaractus brachypomus over 40 days. A total of 600 juveniles (1.61 ± 0.30 g, 4.1 ± 0.9 cm) were distributed in 12 tanks. Performance parameters were measured every 10 days, and biochemical, hematological, and somatic indices were analyzed after 40 days. Growth indicators such as final weight and feed conversion ratio improved with higher feeding rates during specific periods. Plasma glucose and red blood cells showed a quadratic response to feeding rates, while mean corpuscular volume increased proportionally. A 12% feeding rate was optimal for the initial 10 days, enhancing zootechnical indices. From 11 to 40 days, a 6% feeding rate is recommended, as growth performance did not significantly vary across rates. Feeding rates had minimal effects on biochemical, hematological, and somatic indices during the trial.
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Silva et al. (2025) studied this question.
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