[Stress stable Pietrain are gaining ground?]

animal breeding aptitude pour la viande breeds (animals) calidad carcass composition carne cerdas composition de la carcasse estres feed conversion efficiency feed intake meat meat performance meat texture mejoramiento animal performance de reproduction prise alimentaire (animaux) quality race (animal) razas (animales) reproductive performance reproductividad resistance to injurious factors sows stress textura de la carne texture de la viande truie viande