Practical Manual on Better Management Practices for Tambak ...

VII. HEALTH MANAGEMENT PRACTICES1. REGULARLY MONITOR THE SHRIMP FORHEALTH AND GROWTH• Check the health of shrimp in feed checktrays on daily basis.• Check the general health and growth ofshrimp collected by cast net on weekly basis.• The shrimp should be clean with normalcolour, have a full gut and without loss of anylegs or antennae.• While checking 5-10 shrimp from feed tray orfrom cast net, if the shell or gills of shrimp aredirty it means that the pond bottom whereshrimp stay is not clean. Therefore spread thefeed to another cleaner bottom areas in thepond and exchange 10 cm of water and apply200 kg/ha of agricultural lime.• If white faeces or sick / dark shrimp are foundon the surface water then check if they havedirty or black gills. If so, reduce feeding andexchange 10 cm of water.Cast net samplingUse of feed checkBetter Management Practices for Tambak Farming in Aceh | 44