Gastric evacuation in European seabass Dicentrarchus labrax (Linnaeus, 1758), forced-fed on commercial pellets
2023; Indian Council of Agricultural Research; Volume: 70; Issue: 1 Linguagem: Inglês
10.21077/ijf.2023.70.1.100596-04
ISSN0970-6011
AutoresHabib Bal, Ömerhan Dürrani, Kadir Seyhan,
Tópico(s)Aquaculture Nutrition and Growth
ResumoThe effects of meal size and body size on gastric evacuation rates were parameterised for European seabass Dicentrarchus labrax (Linnaeus, 1758). A total of three gastric evacuation experiments were performed on small (15.7±0.8 cm) and large (21.5±0.4) size fish forced-fed with meals of 0.5 and 1.5 g composed of commercial pellets. The stomach contents were then recovered by serial slaughtering the fish at predetermined post-prandial times. The surface-area dependent function adequately describes the gastric evacuation in European seabass independently of meal size. A power function of fish length L was then employed to evaluate the impact of body size, revealing its notable effect on gastric evacuation rates of European seabass. Keywords: Aquaculture, Feeding regimes, General power function, Surface-area dependent
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