Characteristics of SPF,SPR & SPT of Penaeus vannamei and determination of the best choise of broodstock

Document Type : Article

Authors

1 Iran Fisheries Organisation

2 Persian Gulf and Oman Sea Ecological Research Center

Abstract

Hormozgan province is the one of important centrals of shrimp breeding and culture. As regards of developing of Farms and outbreak of disease like WSSV in Hormozgan we need proprty broodstock.The sanitary and genetic characterization of farmed penaeid shrimp needs to be selected
based on the type of culture system and biosecurity strategy applied. This paper attempts to
define the concepts specific pathogen free (SPF), specific pathogen resistant (SPR) and specific
pathogen tolerant (SPT) and presents the process for development of a combined approach
where white-spot syndrome virus (WSSV) SPT/SPR animals were selected to create SPF stocks
for use in a low-biosecurity facility. The success of this approach was proven when they were
imported and adopted as the only stocks cultured in the Kingdom of Saudi Arabia after the local
species were wiped out by WSSV. Record national production has been achieved since their
introduction and WSSV has been eradicated even from the wild population. It is suggested that
this type of stock (WSSV SPT+SPF) could be an alternative for countries still impacted by
WSSV that do not have the technical competence or the investment capacity to transform the
industry to small intensive ponds where viral exclusion strategies could be implemented

Keywords