Titre du projet
Housing conditions, keel bone disorders in Swiss laying hens and rearing units and the effect of type of perch and Vitamin D supplement on keel bone deformities of hybrids and parental birds
Titre du projet anglais
Housing conditions, keel bone disorders in Swiss laying hens and rearing units and the effect of type of perch and Vitamin D supplement on keel bone deformities of hybrids and parental birds
