TY - BOOK AU - Omer,Fawzy Mohamed Ahmed TI - Using protected fat prepared from soap industry by products in finishing rations of friesian bulls PY - 1999/// KW - Soap KW - Ruminants KW - Feeding and feeds KW - Bulls KW - Feed utilization efficiency N1 - Thesis (Ph.D.)--Cairo University,1999; Includes bibliographical references (leaves 108-129); Microfiche.Cairo, Egypt :ASUNET; 3 microfiches:negative ER -