FORAGE NUTRITIOUSNESS AFTER DIFFERENT WAYS OF USE OF A NATURAL MEADOW IN THE RHODOPE MOUNTAINS (SOUTHERN BULGARIA)
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2011, Vol 2, Issue 10
Abstract
The experiment with a natural meadow of Agrostis capillaris-Festuca fallax type in the Rhodope Mountains (Smolyan region, Southern Bulgaria) shows that the different ways of use influenced on the qualitative characteristics of the forage. The crude protein and crude fiber of the grass biomass were in well-expressive opposite dependence. Thus the crude protein content in annually used ways varied from 275 to 320 g.kg-1 by grazing, while the crude fiber - from 224 to 298 g.kg-1 by hay production. As a result of the annual use of alternating ways to harvesting, the protein reached from 263 to 324 g.kg-1 after grazing, while the crude fiber – from 219 to 290 g.kg-1 after hay production. Given the annual ways used, maximum feed units per 1 ha (4321 FU) and the greatest crude protein yields (1.76 t.ha-1) were obtained after pasture alternation with hay-use. Similar results were observed with alternating ways by years after an initially triple (pasture-hay-pasture) using. The forage nutritiousness increased when performed rotation of the ways to use. Their values were lower when their use is applied annually. By increasing the number of used undergrowths combined with annual identical uses (only grazing or grazing-hay-grazing), the energy nutritiousness of the grass forage decreased and reached the lowest values compared to other uses.
Authors and Affiliations
YANKO KOZHOUHAROV| Complex Experimental Station, Smolyan (Bulgaria), VLADIMIR LINGORSKI| Research Institute of Mountain Stockbreeding and Agriculture, Troyan (Bulgaria)
Keywords
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