Estimation of Nutritive Value and Apparent Digestibility Factor for Water Hyacinth Silage in Awassi Sheep Diet

Osama Mohummad Fafeem Yosef


This study was carried out to determine the nutritive value of water hyacinth (Eichhornia crassipes) (WH) and it’s contain of essential element and the heavy metal, and to estimate the apparent digestibility for the water hyacinth silage (WHS). Also to study the effect of WHS replacement on apparent digestibility, and the metabolic energy of the diet fed to Awassi sheep. Twaleve male of Awassi sheep aged between 11- 12 month and weighing (76.4±5.37 kg) were used for the trial. Three animals were allotted to each of the four treatments (WHS 75%, WHS 50%,WHS 25%, WHS 0%) in a completely randomized design Parameters measured include: apparent digestibility of organic matter, crude protein, crude fiber, ether extract, nitrogen free extract, total digestible nutrients (TDN). The results showed that the plant had good level of essential and micro mineral, without any containing heavy metal. The Chemical composition of water hyacinth silage showed good level of crud protein 12.01g/100g DM moderate total digestible nutrients (TDN) (52.1%) and the apparent digestibility of dry matter and crude protein increased with increasing level of WHS in the diets. The replacement of water hyacinth silage had positive effect on total digestible nutrients (TDN), and had significant effect on digestible energy (312±13) Kcal/100gr at 25% replacement of WHS compared with control group (277.2±22.5) Kcal/100gr, and significant effect on metabolic energy (256.3±10.6) Kcal/100gr compared with control group (227±18.5). It could be concluded that WHS can be used to substituted the wheat straw by up to 25%.


Water hyacinth silage, nutritive value, apparent digestibility, Awassi sheep


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