PRODUCTION PERFORlVIANCE OF BROILERS FED ON RATIONS POLLUTED BY SOlVIE HEAVY lVIETALS

Abstract

This research work was carried out to study the effects of polluted rations with cadmium (Cd) and Lead (Pb) on productive performance of broiler chicks.

In • the first experiment, Cd was used in two experimental groups where Cd was inserted in ration •at levels of 30 and 60 ppm, respectiely. There was a control group which fed a basal diet free of Cd. 90 broiler chicks (Hubbard) were used in this respect (30 chicks for every• group).

In the second experiment, broilers fed on rations polluted with Pb at two levels of 200 & 400 ppm in addition to a control group which had no Pb in their rations. 90 broiler chicks Hubbard were used in this experiment i.e. 30 birds for each experimental treatment.

Results could be summarized as follows:

The first experiment:

1. There was a significant effect of Cd at the two levels, where body weight negatively reduced at the different ages throughout the experiment. Values for body weight at 6 weeks of age were 1771.35 gm for control group, 1401.40 gm for Cd 30 ppm group and 828.65 gm for Cd 60 ppm group. 2. There was • a significant effect of Cd at the two levels • where feed consumption, weight gain and feed conversion negatively • reduced. Values for feed consumption at 6 weeks •of age were 127.69 gm for