The effect of usage of Artemisia herba alba and Urtica dioica herbs extracts on the histopathological changes of Eimeria tenella parasite in the broiler chick. Dunia Abid-AlMalik , Haider Mohammad Ali Al-Rubaie and Enam Bader Falih

Abstract

This study was conducted to determine the biological effects of both Artemisia herba alba and
Urtica dioica on the pathogenesis of Eimeria tenella, so 150 broilers, 7days old (Ross breed)
were used, divided randomly into 6 groups. The first fourth groups include 30 chicks for each
group, while fifth and sixth groups have 15 chicks for each, consider as positive and negative
groups.The first five groups infected orally with 1000 oocysts of E.tenella directly into the crop
at 17 days old. Histopathological examination of cecae in the treated groups with Urtica dioica
revealed moderate mononuclear cells (MNCs) infiltration, while sever lymphocytic aggregations
were seen in the treated group of water extract comparing with less cellular inflammatory
infiltration was seen in the treated group with Artemisia herba alba .Severe degeneration and
necrotic changes were appeared in epithelial layer of mucus glands as well as appearance of
degenerated schizonts in the section of the control group.