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Análise da degradação de dieta microencapsulada por larvas de pacu (Piaractus mesopotamicus, Holmberg, 1887) através de microscopia eletrônica de varredura

2003; Editora da Universidade Estadual de Maringá (Eduem); Volume: 25; Issue: 1 Linguagem: Inglês

10.4025/actascianimsci.v25i1.2088

1807-8672

Maria Célia Portella, Marcelo Borges Tesser,

Protein Hydrolysis and Bioactive Peptides

This research analyzed the microencapsulated diet degradation in pacu (Piaractus mesopotamicus) larvae intestine. The pacu larvae received the following feeding treatments: AMD- larvae fed initially Artemia nauplii for six days, followed by microencapsulated diet; C6MD- larvae fed initially Artemia for six days, followed by six days of co-feeding and the rest of the experiment (8 days) with microencapsulated diet; C9MD- larvae fed initially Artemia for six days, followed by nine days of co-feeding and the rest of the experiment (5 days) with microencapsulated diet. The pacu digestive tract contents were removed, processed and analyzed under scanning electronic microscopy. Diets from AMD larvae treatment showed few degradation areas, when compared to original dry diets. On the other hand, diets removed during co-feeding period showed the highest degradation areas. The results suggest a positive effect of Artemia on diet degradation.