Topigs Norsvin has recently implemented selection for increased natural resistance to porcine reproductive and respiratory syndrome (PRRS) by using the WUR SNP in breeding value estimation in swine.
The WUR SNP is a genetic marker for a major gene associated with natural resistance to PRRS, Topigs Norsvin said.
Several research trials have demonstrated that pigs with the favorable WUR genotype were more resistant to PRRS as a result of lower virus load and greater daily gain upon challenge with the PRRS virus, the company said. This means that pigs with the favorable genotype were better able to cope with the infection, thereby reducing the overall economic impact of disease.
Implementing selection for increased resistance to PRRS in the Topigs Norsvin breeding program presents a natural, readily available control strategy for the most costly swine disease in the world. By incorporating the WUR SNP genotype into the breeding program, Topigs Norsvin said it has introduced an effective defense mechanism against this economically important disease.
Pig genetics company Topigs Norsvin continues to invest in breeding for natural disease resistance to specific diseases like PRRS, as well as for general robustness to disease challenge. This will lead to healthier and more sustainable pig production.
Topigs Norsvin is known for its approach to implementing new technologies and a continuous focus on cost-efficient pig production, with research, innovation and dissemination of genetic improvement as the cornerstones of the company.