Document Type : Research articles.
Authors
1 Dept. of Anim. Prod. , Fac. of Agric. Fayoum Univ., Fayoum, Egypt
2 Dept. of Anim. Prod. , Fac. of Agric., Zagazig Univ., Zagazig, Egypt.
3 Dept. of Anim. Prod. , Fac. of Agric., Minia Univ., Mina, Egypt.
Abstract
Keywords