TY  - BOOK
AU  - El-Gaafarawy,Ahmed Mohamed Abd El-Moety
TI  - Improvement of productive and reproductive efficiency in friesian calves
PY  - 1992///
KW  - Friesian cattle
KW  - Genetics
KW  - Calves
KW  - Feeding and feeds
KW  - Cattle
KW  - Reproduction
N1  - Thesis (Ph.D.)-- Al-Azhar University, 1992; Includes bibliographical reference (leaves 145-180); Microfiche; Cairo, Egypt; ASUNET; 4 microfiche : negative
ER  -