الفهرس 
Introduction
chemical composition of water hyacinyhOnly 14 pages are availabe for public view
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Abstract
The present study was carried out at the animal production, Experimental station of the Faculty of Agriculture, University of Assuit during 1990 — 1991. This study consists of:
I— Twenty nine samples of WH plants (93% moisture) were taken from Elwasta and Elwan locations. The samples were analyzed for chemical composition. The differences in chemical composition due to plant parts and locations were studied.
II— One digestible trial (15 days collection period) with 2 Ossimi rams were carried out to determine the nutrients digestibility of air dried WH plants. Nitrogen balance and feeding value of WH (TON, SV and DCP) were also determined.
III— Seventeen Ossimi male lambs (6 months age) were divided into 5 groups with 3 lambs for each group except group 5 which had 5 lambs. Studied Groups were fed rice straw plus NTFM, WE plus NPFM, Wi! plus rice straw (1:1) and NTFN, WE plus rice straw (1:1) and WH as a sole feed for Groups 1, 2, 3, 4 and 5 respectively. The NTFM which added to Groups 1, 2 and 3 were exactly 1 Kg/animal/day. This trial continued 161 days and used to determine the effect of feeding WH at different levels on animal performance and health including blood and pathological changes. The obtained results are summarized in the following:
1— Proportion of WH aerial part was 47.5% of the fresh plant and 46% of the plant ON.
2— The chemical composition of the air dried WE aerial part was 6.83% moisture; 11.94% CP; 2.55% EE; 17.70% CF; 40.44% WEE; 72.62% ON and 20.56* ash. The corresponding values for root zones