Influences of roughages type, concentrate level and stage of lactation on behavior ; milk yield and composition of dairy cows
By: Mahrus, Usamah al-Sayyid; Darwish, Madihah Husni Ahmad; Mani, Ibrahim Shihatah. Assiut University Bulletin for Environmental Researches. Vol. 9, no. 1 (Mar. 2006), 9 p.
Subjects: Cows; Behaviour