Copper nutrition of goats grazing native and improved pasture with the seasonal variation in a semiarid region of Pakistan

Autor: Khan, Z.I., Hussain, A., Ashraf, M., Ashraf, M.Y., McDowell, L.R., Huchzermeyer, B.
Zdroj: In Small Ruminant Research 2007 67(2):138-148
Databáze: ScienceDirect