Principles of Genetics and Breeding

15.1.7.2. Use of specific pathogen free (SPF) stocks

The development of SPF stocks for some species of penaeid shrimp (SPF Litopenaeus vannamei , L. stylirostris and Penaeus monodon are currently available) is a similar private-sector initiative to provide shrimp growers and hatcheries with broodstock and postlarvae of known health status with regard to certain pathogens (FAO, 2006). Unlike the government-regulated programme for salmonids used in Canada, however, the pathogens for which freedom is certified varies between SPF production facilities and shrimp species. There is also no universally accepted standard (e.g. type, number and frequency of diagnostic testing that must be performed) as to the criteria that must be met for a production facility to achieve SPF production status.