Survey on the use of natural food and supplemental feed in commercial milkfish farms on Panay, Philippines

Publikations-Art

Kongressbeitrag

Autoren

Lückstädt,C.; Focken,U.; Coloso,R.; Becker,K.

Erscheinungsjahr

2000

Veröffentlicht in

Book of Abstracts and Proceedings on CD-ROM of "Deutscher Tropentag 2000"

Herausgeber

Tropenzentrum, University of Hohenheim

Seite (von - bis)

229-230

Tagungsname

<IMG Src="/~www480/webbug.php" Width=1 Height=1 Alt="">Deutscher Tropentag 2000: International Agricultural Research &#150; A Contribution to Crisis Prevention

Tagungsort

Hohenheim, Germany

Tagungsdatum

11.-12.10.2000

Schlagworte

aquaculture, feeding behaviour, milkfish, Südost Asien

This study evaluated the feed intake of the milkfish (Chanos chanos Forsskål) in commercial brackishwater ponds under different management regimes. Feed intake and growth were compared between a rather intensive culture management in a fish farm of 1 ha pond size and a semi-intensive one, with a total pond area of 30 ha. The data suggested a direct consumption of only 12 % of the supplemental feed in the intensive farm, leading to a wastage of high quality fish feed and a significantly lower specific and metabolic growth rate (P < 0.001) than in the semi-intensive system without any supplementation and only relying on abundant natural food through fertilization. These results suggest that a heavy reduction in, or even the abandonment of the use of, supplemental feed for milkfish culture would be more cost-effective.