Topigs Norsvin implements PRRS resistance in breeding value estimation

Topigs Norsvin has recently implemented selection for increased natural resistance to PRRS by using the WUR SNP in breeding value estimation.
calendar icon 1 March 2018
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The WUR SNP is a genetic marker for a major gene associated with natural resistance to PRRS.

Several research trials have demonstrated that pigs with the favourable WUR genotype were more resistant to PRRS as a result of lower virus load and greater daily gain upon challenge with the PRRS virus. This means that pigs with the favourable 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 costliest swine disease in the world. By incorporating WUR SNP genotype into the breeding program, Topigs Norsvin has introduced an effective defence mechanism against this economically important disease.

PRRS Virus via electron microscopy

Topigs Norsvin continues to invest in breeding for natural disease resistance to specific diseases like PRRS, as well as general robustness to disease challenge. This will lead to healthier and more sustainable pig production.

As reported by Topigs Norsvin

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Emily Houghton

Editor, The Pig Site

Emily Houghton is a Zoology graduate from Cardiff University and was the editor of The Pig Site from October 2017 to May 2020. Emily has worked in livestock husbandry, and has written, conducted and assisted with research projects regarding the synthesis of welfare and productivity of free-range food species.

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