Artículos de revistas
Composição corporal e índices biométricos do pacu, Piaractus mesopotamicus Holmberg, 1887 (Osteichthyes, Characidae) submetido a ciclos alternados de restrição alimentar e realimentação
Fecha
2002-12-01Registro en:
Acta Scientiarum - Biological and Health Sciences, v. 24, n. 2, p. 533-540, 2002.
1415-6814
10.4025/actascibiolsci.v24i0.2355
2-s2.0-0036943607
2-s2.0-0036943607.pdf
9290459261474398
0000-0001-5898-2914
Autor
Universidade Federal de Goiás (UFG)
Universidade Estadual Paulista (Unesp)
Institución
Resumen
The present paper evaluated, through hepatosomatic/mesenteric fat indexes and body composition, the pacu energy utilization when submitted to alternated food restriction/refeeding cycles during the growout period. Juveniles were distributed in three pounds and submitted to different feeding programs: A (ad libitum daily feeding), B (4-week feeding restriction and 9-week refeeding) and C (6-week feeding restrictions and 7-week refeeding), totaling 13 weeks for each cycle (4 experimental cycles). At the end of the periods, fish were sampled to obtain biometrics and biochemical data. The results showed that, during the first two cycles, C treatment obtained the best compensatory growth. Carcass lipid and water contents were inversely related, with body fat decrease. Fishes under B and C treatment during food restriction utilized liver and mesentery energy stores. These parameters were re-established in the refeeding phase, in all cycles.