This study was carried-out during the period extended from year 2007 to year 2009 on (33) random cycles of layer farms. Different localities were the areas of research which include EL-Kaliobia, EL-Mnofia, EL-Gharbia and Kafr EL-Elsheikh governorate, the data were collected from the accurate health and production records and also, by using the structured questionnaires methods in case of no record farms.The aim of this study is to determine and highlight the most important factors affecting the efficiency of such farms and their profitability under Egyptian conditions. This study indicated that, the most important factors affecting layer farms production were breeds of layers, locality of the farm and the diseases affecting layer as Coccidiosis, Mycotoxicosis, Gumboro, ILT and CRD. This study indicated that, the net return from sales among localities and breeds, was ranged from 457.05 to 5661.01 LE / 100 layers for Bovan and Lohman brown breeds; respectively, in El-Kaliobia governorate. And densities and breeds within densities, the net return ranged from 457.05to 3448.23 LE / 100 layers for high and medium density, for Balady and Lohman brown breeds; respectively. And among the different infection pattern,the lower net income infection pattern observed in Bovan breeds infected with Gumboro (-2.11 LE/100 layers). While, the control Lohman brown breeds achieved net income by 4572.87 LE /100 layers. |
