Shrimp stocks development

Development of specific pathogen-free (SPF) shrimp stocks and their application to sustainable shrimp farming... 

Development of specific pathogen-free shrimp stocks 279... 

To begin the process of developing an SPF stock (Fig. 11.5), each SPF candidate population of wild or cultured shrimp stocks of interest was... 

Fig. 11.5 Schematic of the steps followed in developing domesticated SPF shrimp stocks by the U.S. Marine Shrimp Farming Program.

The key to the success of these examples of SPF stock development was dividing the founder population into small groups or to one individual shrimp or one spawn from a single female as soon as possible after capture in order to minimize the possibility of shrimp-to-shrimp transmission of IHHNV, UPV, WSSV, or other infectious agents that might have been present. 

Development of spedlic pathogen-free shrimp stocks 317... 

Commercial production trials comparing SPF and non-SPF stocks were conducted by the US industry. Biosecurity protocols were developed and implemented to prevent disease contamination of the SPF broodstock in order to produce Ffigh Health PL (Jaenike et al, 1992). More than 50 million High Health PL were produced in 1991 and stocked into commercial US ponds for field trials of the new stock. High Health PL-stocked ponds were found to be more than twice as profitable as the non-High Health crop. More uniform harvest-size distribution was seen in the High Health crop (Carpenter and Brock, 1992). More uniform-sized shrimp at harvest translates directly into improved profitability. 

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