Common reed (Phragmites australis) as a new roughage in ruminant nutrition?
2004
Baran, M.,Slovenska akademia vied, Kosice (Slovak Republic). Ustav fyziologie hospodarskych zvierat, Soltesovej 4-6, SK-040 01 Kosice | Varadyova, Z.,Slovenska akademia vied, Kosice (Slovak Republic). Ustav fyziologie hospodarskych zvierat | Kracmar, S.,Mendelova zemedelska a lesnicka univ., Brno (Czech Republic). Zemedelska 1, CZ-613 00 Brno | Hedbavny, J.,Mendelova zemedelska a lesnicka univ., Brno (Czech Republic)
Common reed (Phragmites australis] is a large perennial rhizomatous grass, or reed especially common in alkaline and brackish environments and freshwater wetlands. It is very important as a source of cellulose and energy. The use of common reed as a potential source of roughage in ruminant nutrition is actual and interesting. Common reed is a reach source of nitrogen substances. From mineral composition point of view, common reed has a relatively high content of magnesium (2.65 g/kg), potassium (10,9 g/kg) and manganese (97.0 mg/kg). The values of dry matter degradability of common reed ranged within the dry matter digestibility of meadow hay and wheat straw and achived 41. 8%. During its fermentation the methane production is high. Comon reed give a high acetate: propionate ratio as a fermentation parameter. This is due to a relatively low propionate production. The results from in vitro studies indicate a possibility of using common reed (especially as a source of nitrogen, magnesium, potassium and manganese) as a partial replacement of roughage for ruminants. Practical use of common reed is limited especially by demandingness of processing. The finding of new technology for processing and pelletizing of common reed, as a replacement of hay and straw comparable roughage should be interesting in the agricultural practice. More in vitro and in vivo results are necessary for these purposes.
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