TY  - BOOK
AU  - Shatta,Abd El-Sattar Abd El-Azize Mohamed
TI  - Studies of some environmental factors on some reproductive performance of friesian bulls
PY  - 1987///
KW  - Friesian cattle
KW  - Feeding and feeds
KW  - Bulls
KW  - Reproduction
KW  - Cattle
KW  - Productivity
N1  - Thesis (M.S.)-- Tanta University, 1987; Includes bibliographical references (leaves 110-131); Microfiche; ASUNET; Ain Shams University; 3 microfiches : negative
ER  -