Effects of stocking density on the performance of the Australian freshwater silver perch (Bidyanus bidyanus) in cages

Autor: Charlie Mifsud, Peter Boyd, Mark Nixon, Stuart J Rowland
Rok vydání: 2006
Předmět:
Zdroj: Aquaculture. 253:301-308
ISSN: 0044-8486
DOI: 10.1016/j.aquaculture.2005.04.049
Popis: Silver perch fingerlings (range mean weights, 109.3–115.4 g) were stocked at densities of 12, 25, 50, 100 or 200 fish/m3 in cages (1 m3) in an aerated, 0.32-ha earthen pond, with four replicate cages for each density. Fish were fed a formulated diet containing 32% crude protein and 13 MJ/kg energy and cultured for 210 days. Water temperatures ranged from 20.6 to 29.8 °C. There was aggression between fish in cages stocked at 25 or 50 fish/m3 and survival (50% and 64.5%, respectively) was significantly lower (P
Databáze: OpenAIRE