الفهرس | يوجد فقط 14 صفحة متاحة للعرض العام |
المستخلص Three field experiments were carried out in season 2002 in a private fish hatchery and fish farm at kafr el-sheikh governorate tolombat no. 7 with cooperation of animal production department faculty of agriculture al-mansourah university at the first experiment two aeration period 8 and 16 hours daily. |