TY  - BOOK
AU  - Ghonim,Aymen Ibrahim Abdo .
TI  - Improving of some produtive traits on ducks
PY  - 2005///
KW  - Ducks
KW  - Eggs
KW  - Breeding
KW  - Poultry
KW  - Physiology
KW  - Productivity
KW  - Environmental aspects
N1  - Thesis ( (Ph.D. ) Mansoura  University,2005; Includes bibliographical references (leaves 124-130)
UR  - http://nile.enal.sci.eg/thesis/1679.pdf
ER  -