§ Mr. Reidasked the Minister of Agriculture, Fisheries and Food what investigations have been carried out into the use of sewage sludge (a) as a supplementary foodstuff in fish farming and (b) for the production of worms and fly larvae as a fish foodstuff.
§ Mr. BishopThe Government keep in touch with developments both in this area and elsewhere on all aspects of fish nutrition. However, sewage sludge is liable to contamination by organic and130W heavy metal residues which would be a considerable handicap and it is an open question whether sewage sludge would be competitive with more conventional methods of feeding. It is doubtful whether farmed fish fed in this way would be acceptable to consumers.