Thesis (Ph.D.) - Cairo University - Faculty of African Postgraduate Studies - Department of Natural Resources

This experiment was conducted to study the water provided to chickens on the yield of productive performance, the rate of feed consumption and the feed conversion factor. While assessing the effect on the immune response of birds, studying the effect of adding chlorine and iodine and using a magnetic separator for minerals in treating water pollution and the effect on production efficiency. For this purpose, 320 chickens of the Egyptian Fayoumi strain were divided at the age of 24 weeks during a trial period from 24 weeks to 48 weeks. The birds were divided into eight groups, each group of 40 hensThe results obtained showed the following: 1) The treatment of water with chlorine 1 cm / liter and iodine 1 cm / liter with the use of magnetic separator for metals throughout the period of the experiment had an effect on food intake (FI) compared to the control group. A group of chickens (Treatment 8) consumed less feed (P 0.05) than the control group (comparison) and it was better in feed conversion factor. 2) Supplying chickens with drinking water (Group 8) improved egg production (EP% significantly (P{u2264}0.05) throughout the entire trial period (24-48 weeks) compared to the control group, there was no difference in egg weight (EWg) except (Group 5,8) that was significantly higher (P {u2264} 0.05) than the others. 3) During the use of drinking water treatments, the different experimental periods, especially in groups (5 and 8), showed a lower mortality rate compared to the control group. 4) There is an improvement in most egg quality characteristics (egg weight (AW), yolk weight YW)) egg shell weight SW)), (EL), (ST), (AD), (YD), (YH) when using water Drink with 1% chlorine and 1% iodine while using a magnetic mineral separation device throughout the experiment. 5) The groups of drinking water treatments 1% chlorine and 1% iodine with the use of magnetic mineral separation device recorded a significant decrease (P 0.05) of the water content values of microbiological analysis cells (E. coli) compared with the control group

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