| Naga
- The *ICLARM Quarterly
Vol.
23, No. 1 (January - March 2000)
Features
Integrating
Fish and Azolla into Rice-Duck Farming in Asia
A.G.
Cagauan, R.D. Branckaert and C. Van Hove
Abstract
Several
countries in Asia practice integrated rice-duck
farming. On-farm resources such as duck manure
and feed waste are not adequately used and recycled
in the system. This indicates the potential for
research to increase the productivity of the rice-duck
system. The integration of fish and the nitrogen-fixing
aquatic fern azolla show promise for increasing
the production potential of the system. Fish,
azolla and ducks integrated with rice farming
can result in nutrient enhancement, pest control,
feed supplementation and biological control. Some
of the results of a case study on integrated rice-fish-azolla-duck
farming systems conducted in the Philippines are
presented in this paper.
A.C.
Cagauan is from the Freshwater Aquaculture
Center, Central Luzon State University, Muñoz,
Nueva Ecija, Philippines, and is presently a Research
Fellow supported by the International Development
Cooperation, Catholic University of Louvain, B-1348
Louvain-la-Neuve, Belgium; R.D. Branckaert
is from the Animal Production and Health Division,
Food and Agriculture Organization, Rome, Italy
(e-mail: Rene.Branckaert@fao.org);
C. Van Hove is from the Unit of Plant Biology,
Catholic University of Louvan (e-mail: vanhove@bota.ucl.ac.be).
Floating
Islands: a Unique Fish Aggregating Method
V.R.
Suresh
Abstract
A fish
aggregating device made of aquatic weeds and grass
(Phoom) is used in Loktak lake in the northeastern
region of India. It has been used successfully
in this very productive fishery for centuries.
Today, the fishery itself is under pressure from
overexploitation, soil erosion leading to siltation
and a hydroelectric project that has blocked the
migratory route of the fish that used the lake
as a breeding ground.
V.R.
Suresh is from the ICAR Research Complex for
North Eastern Hill Region, Manipur Centre, Imphal
- 795 004, India.
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