Effect of hyacinth (Eichhornia crassipes) supplement on histology of duodenum in Ross broilers.
Eichhornia crassipes, water hyacinth, is an aquatic plant native to the Amazon basin often a highly invasive species outside its native range. In a randomized completely block design study, four groups of 60 day old Ross 309 broilers each were fed basal diet of 10, 7.5, 5 and 2.5% wheat with 2.5, 5.0, 7.5 or 10.0% hyacinth powder respectively, daily for 5 weeks. Controls were fed basal diet. By 5 weeks, birds were sacrificed for histology of duodenum. Compared with controls, in broilers given 2.5% hyacinth we found shortened villi and hypertrophy mucosa but in those given 5-10% hyacinth villi appeared elongated with mucosal degeneration, necrotic submucosae, hypertrophy of mucosal glands and/or edema. Our findings suggest that 5-10% hyacinth supplement given daily for 35 days could induce severe mucosal duodenal damage in Ross broilers.