Piétrain demand rises as numbers shrink Exports of this breed from Belgium rose by 30% last year, but AI has reduced the number of purebred animals registered in the national herdbook. March 27, 2008 Herman Vets and Jürgen Depuydt Exports of this breed from Belgium rose by 30% last year, but AI has reduced the number of purebred animals registered in the national herdbook.Read more