Broodstock sourcing

Broodstock sources include pond (domesticated) and wild collected. Le and Le (2010) found that 78.1 % of hatcheries were using domesticated broodstock (collected from grow-out ponds), 6.3% using wild-collected broodstock and 15.6 % using both sources. There is a clear trend towards in the increased use of pond reared broodstock. Belton et aL (2010) reported in detail on broodstock procurement and concluded that broodstock could be sourced from extensive grow-out, export-orientated grow-out, capture... 

Microalgae, the microscopic plants present in oceans and waterways, are exploited as an indispensible food source for the commercial production of many aquaculture species. Within the hatchery environment, they are directly eaten by all growth stages of bivalves (broodstock, larvae, juveniles), post-set abalone, the larval stages of some crustacean species, and the very early developmental stages of some fish species. Microalgae are also used as feed to culture zooplankton (e.g. Anemia, rotifers, copepods) that are used as food for larval and juvenile stages of many fish and crustacean species. 

Feeds are a significant biosecurity risk. There is no single pelletized feed that produces high quantities and quality of shrimp nauplii. Successful reproduction in marine shrimp requires the use of fresh feeds such as marine polychaetes, squid and shellfish. This daily addition of fresh feeds to the SPF broodstock is a large risk to biosecurity. Sourcing of the fresh feeds is important in trying to prevent any disease introduction. 

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