Abstract: Abstract: The effects of diet containing 10% of Ruta graveolens or 10% of Solenostemma argel leaves or their 1:1 mixture (5+5%) on Bovans chicks treated for 2 weeks were investigated. A depression in growth and hepatotoxicity characterized treatment with R. graveolens and S. argel given alone. Hepatotoxicity, widespread congestion and hemorrhage in chicks fed R. graveolens leaves alone were marked and accompanied by anemia and alterations in serum concentrations of total protein, albumin, globulin, cholesterol, and other serum constituents. Feeding the mixture of the two plants caused more marked depression in growth but no death among the chicks occurred.