Recent article in Le Monde looks at possible role of integrated fish farming; includes (via babelfish):
FAO recommends, on its Internet site, “not to use (poultry droppings and manures) in the animal feeds in the countries touched by the influenza aviary or risking to be it. (…) In all the cases, the poultry dejections and manure must be subjected to a rigorous control. (…) It is necessary to prevent any escape towards the rivers.
– so FAO now has reservations it seems, after heavily promoting integrated fish farming. Yet, not very public about this, instead still ready blame for wild birds. Hmm…
I was just briefly in Indonesia; by happenstance to a fish farm, where took photos inc catfish feasting on chicken carcasses. Aim to post to a webpage here.