Asian Fisheries Society

Use of Artemia, Frozen Zooplankton and Artificial Food forWeaning Fingerlings of the Freshwater Fish Golden Perch Macquaria ambigua ambigua (Percichthyidae)

Abstract:

Juvenile golden perch Macquaria ambigua ambigua (Percichthyidae) (mean weight 0.16g, mean total length 23.9mm) were weaned onto a commercial crumble diet over ten days by co-feeding frozen Artemia or frozen zooplankton, harvested from plankton ponds. Crumble was used to replace plankton slurry, in 10% by volume daily increments. An additional treatment of abrupt weaning from frozen zooplankton to crumble diet, and a control of frozen zooplankton, was maintained. Weaning using zooplankton produced better growth and survival over 56 days (1.57 g, 78.0%) than Artemia (1.11 g, 62.4%), and survival was significantly better than abrupt weaning from zooplankton on to crumble diet (1.57 g, 13.3%). Co-feeding produced better survival rates but poorer growth when non-boosted Artemia was used in co-feeding. Frozen zooplankton is a cheap and readily available alternative to Artemia as a co-feeding weaning diet.

Publication Date : 2003-01-01

Volume : 16

Issue : 1

Page : 85-90

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Date 2003/01/01
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