This study investigated the influence of three medicinal plants extract (Aristolochia ringens, Allium sativum and Occium grattissium) on the histology of the duodenum, liver and caecum of broiler chickens. A total of 300 marshal broiler chicks were used for this experiment. Birds were brooded for two weeks and the experiment lasted six weeks. The birds were distributed into five treatments; Treatment 1 (positive control, which received synthetic drug), treatment 2 (negative control, without antibiotic or phytobiotics), treatments 3 (herbal extract of A.ringens at 20ml/litre of water), treatment 4 (herbal extract of Garlic (A.sativum) bulb at 20ml/litre of water) and treatment 5 (O.gratissium leaves extract at 20ml/litre of water). Each treatment was subdivided into three replicates consisting of 20 birds per replicate. Twenty percent 20% concentration of plant extracts were given at the rate of 20ml per liter of water Experiment was arranged in a Completely Randomized Design. On the 56th day of experiment, one bird per replicate was slaughtered, skinned to remove segments (1 cm) were removed from the duodenum and caecum and part of the liver was cut. The segments were examined by light microscope to determine the histological differences. Inclusion of 20ml of Aristolochia ringens and Allium sativum aqueous extract into 1ml of water improved duodenal villi histology as well as the liver histology of broiler chickens at 56 days. Furthermore administration of the three medicinal plants extract Aristolochia ringens, Allium sativum and Occium grattissium at 20ml/litre of water inclusion level had no deleterious effect on the caecum histology of broiler chickens. Hence, 20ml/litre of water inclusion level of aqueous extract of Aristolochia ringens, Allium sativum was recommended for improved intestinal histology and liver health of broiler chickens.

intestinal histology

Allium sativum

aristolochia ringens

occium gratissium