El-Sayed, 2003. Aquaculture, 218: 471–478 Document reference El-Sayed, A. F. M., 2003. Effects of fermentation methods on the nutritive value of water hyacinth for Nile tilapia (Oreochromis niloticus (L.)) fingerlings. Aquaculture, 218: 471–478Web https://doi.org/10.1016/S0044-8486(02)00252-1Citation key El-Sayed, 2003Datasheets Water hyacinth (Eichhornia crassipes)