Feeding frequency affects feed intake and growth in juvenile pirarucu (Arapaima gigas)
Acta amaz
;
49(1): 11-16, jan. - mar. 2019.
Article
Dans Anglais
| LILACS
| ID: biblio-1119177
ABSTRACT
Pirarucu 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. Results suggest that feeding three times per day was sufficient to secure adequate feeding and growth of juvenile pirarucu. (AU)
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Écosystème Amazonien
/
Régime alimentaire
/
Consommation alimentaire
/
Poissons
langue:
Anglais
Texte intégral:
Acta amaz
Thème du journal:
Science
Année:
2019
Type:
Article
Pays d'affiliation:
Brésil
Institution/Pays d'affiliation:
Empresa Brasileira de Pesquisa Agropecuária/BR
/
Faculdade Católica do Tocantins/BR
/
Universidade Federal de Goiás/BR
Documents relatifs à ce sujet
MEDLINE
...
LILACS
LIS