Hi Everyone,
Here is my contribution to the open discussion on my involvement in work
related to use of digested slurry in aquaculture.

1) Between 1995-1997, I coordinated the UNU/IAS IBS Project at Montfort
Boys Town, Suva, Fiji. George Chan was the technical consultant who
designed the IBS and supervised the construction and operation at the
project site. In this system, digested slurry is first sent to algal basins
for the cultivation of algae. This algal soup is then sent to the fish
pond. See pictures from Montfort Boys Town from various sources, including
Asifo Ajuyah. http://www.ias.unu.edu/proceedings/icibs/ibs/info/fiji

2) I am a scientific advisor to a livestock-aquaculture project in Western
Samoa which is coordinated by Walter Vermeulen. Walter will tell you more about this project.

Question for discussion:
In many developing countries, fingerlings needed for carp polyculture is
not available and so Tilapia is often used with grass carp only.

Could anyone share their experience regarding input rates of digested
slurry (pig or chicken) and fish yields for Tilapia and Tilapia+grass carp ?

regards
jacky