Red deer (Cervus elaphus) – new perspective on the farms in Slovakia effect on silage quality on bark browsing and nutrients digestibility
2012
Rajský, Matúš (Animal Production Research Centre Nitra, Luţianky (Slovak Republic)) | Vodnansky, Miroslav (Middle European Institute of Wildlife Ecology, Vienna (Austria)) | Chrenková, Mária (Animal Production Research Centre Nitra, Luţianky (Slovak Republic )) | Kropil, Rudolf (Technical University, Zvolen (Slovak Republic )) | Rajský, Dušan (Technical University, Zvolen (Slovak Republic )
Red deer belongs among important free living hunting ruminant species in Slovakia. During the last ten years the value of red deer as a new farming species has been increased. One of the main reasons for increase in farming of red deer is the reduced number of cattle; grazing areas are available to red deer farming. There was observed the effect of the quality of maize and grass silage on bark browsing and on apparent digestibility of nutrients in winter period by red deer. A total of 15 red deer females, aged 5-8 years, placed in pens, were used in the experiment. The animals were divided into five groups; three animals in each group. The highest intensity (P < 0.001) of bark browsing per animal was 227 g/d in group fed maize silage of worse quality and meadow hay. The lowest intensity of bark browsing per animal was 2 g/d in group maize silage of good quality and meadow hay. Four animals (in every treatment) in balance boxes were used to determine the apparent digestibility of nutrients of maize and grass silages were used. There was found significant difference (P < 0.001) in digestibility of organic matter between maize silage of average quality (69.8 %) vs. grass silage of average quality (59.9 %). Decreased quality of grass silage significantly affected (P < 0.001) the apparent digestibility of nutrients in comparison to silage of average quality: organic matter (40.6 vs. 59.9 %). The results show that quality of feed significantly influences the nutrients digestibility as well as damage on forests caused by red deer.
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