The effects of dietary energy and perch design on the performance and condition of laying hens kept in furnished cages - Valkonen, Eija; Valaja, Jarmo; Venäläinen, Eija (pl, 2005)
Copyright by the Institute of Genetics and Animal Breeding, jastrzebiec, 2005.
Keywords: Ko; kana; häkit; muninta; käyttäytyminen; terveys; dietary energy; egg; furnished cages; health; hens; perch design