clinicopathological studies on the effect of prolonged administration of some hormones in chickens

The present study deals with two hormonal compounds (estrogen and progesterone) illegally used for fattening purpose on poultry farm industry. The experimental work was performed to investigate the growth performance, hormonal residents in the body tissueNinety Hubbard chickens of 15 days old, were obtained and classified into three equal groups, each contain thirty chickens. The first group was kept as a control group, while the second and the third groups were kept for studying the effect of Nordette (1