Abstract
The present experiment was conducted to evaluate three different diets for Leporinus macrocephalus post-larvae (Garavello & Britski) (Characiformes, Anostomidae) in controlled aquatic systems. Data were subjected to path coefficient analysis, consisting of multiple regression expansion, when complex interrelations are involved. The selected dependent variables were gut repletion degree (GR), phytoplanctonic organisms biomass (FITV) and spineless organisms biomass, plus odonata egg (ZOOV). The results allow the conclusion that the methodology was efficient to evaluate the diets inside the complex aquatic system, and the variables' selection, as well as the proper data collection, show relevance in the results quality.
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