The European Commission approved May 19 Pfizer Animal Health marketing its swine vaccine across Europe, according to a Pfizer press release.

Improvac, now approved in 52 countries around the world, reduces the levels of androstenone and indirectly skatole – the two major boar taint compounds – to below sensory thresholds.


The vaccine is an animal-friendly alternative to physical castration and does not compromise meat quality, according to Pfizer.