01509naa a2200241 a 450000100080000000500110000800800410001902400360006010000240009624501150012026000090023552007840024465000190102865000200104765000220106765000220108965000100111165000130112170000160113470000190115070000300116977300680119921011582020-02-14       2019    bl uuuu     u00u1 u    #d7 a10.1590/1809-43922018024422DOI1 aRODRIGUES, A. P. O.  aFeeding frequency affects feed intake and growth in juvenile pirarucu (Arapaima gigas).h[electronic resource]  c2019  aPirarucu is one of the main fish species for the development of aquaculture in the Amazon. In this study, the optimal feeding frequency for juvenile pirarucu was assessed based on growth and feed efficiency. Juvenile pirarucu weighing ca. 80 g were fed once, twice, three or four times daily until apparent satiation for 63 days. Fish fed three or four times per day presented higher growth, feed intake, and fat body content than those fed once or twice per day. There was no significant difference for feed conversion ratio, and protein and energy retention rates among treatments, suggesting that increased feeding frequency did not affect feed utilization efficiency. Mean feed intake per meal was higher when fish were fed once per day, possibly causing hyperphagic behavior  aArapaima gigas  aFeeding methods  aOsteoglossiformes  aNutrição Animal  aPeixe  aPirarucu1 aLIMA, A. F.1 aANDRADE, C. L.1 aMEDEIROS, R. M. dos S. de  tActa Amazônica, Manausgv. 49, n. 1, p. 11-16, jan./mar. 2019.