Effect of Contaminated Feedstuffs On Performance of Domestic Fowls

This work aimed to Determine the LD50 of some organophosphosphorus compounds such as selecron and nuvacron on mandra (local developed strain) chickens, and also to study the effect of contaminated poultry diets with organophosphorus compounds on growth performance, feed efficiency, blood comporents, carcass and non-carcass components, histopath- ological and ressues and hygienic diagnosis, in the present investigation also natural clay (tafla) was used to diminish the harmful effect of pesticides on chicks performance.