Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Effect of hyacinth (Eichhornia crassipes) supplement on histology of duodenum in Ross broilers.

Abstract

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.