Protective value of oat and its chemical composition and nutritive value as green forage or silage
Piotr Micek
whbz@urk.edu.plKatedra Żywienia Zwierząt, Akademia Rolnicza w Krakowie (Poland)
Tadeusz Zając
Katedra Szczegółowej Uprawy Roślin, Akademia Rolnicza w Krakowie (Poland)
Franciszek Borowiec
Katedra Żywienia Zwierząt, Akademia Rolnicza w Krakowie (Poland)
Abstract
The aim of the study was to determine the protective value of oats as well as an effect of plant maturity on yield and nutritive value of whole plants oat as green forage or silage. In experiment I, the protective value of oats for undersown alfalfa was investigated. The cultivation of oat as a protective plant (with reduced number of plants per ha) for undersown alfalfa resulted in medium- size yield of green forage. At the same time, oats ensured a sufficient supply of active light for photosynthesis for proper growth and development of alfalfa plants. In experiment II, the plants for making silage were cut at three stages of maturity: heading, milk and milk-dough. Ageing of plants from the heading to a milk-dough stage of growth increased dry matter content (DM) and caused important changes in their chemical composition. The increase of a starch proportion was accompanied by a decrease in a crude protein content and NDF level. Moreover, the plants cut at the heading, milk or milk-dough stages of growth were proved to be good materials for silages. Because of the high yield of dry matter and net energy (UFL) per ha, the milk-dough stage of oat maturity can be recommended for making silage.
Supporting Agencies
Keywords:
chemical composition, green forage, oats, protective value, silage, yieldReferences
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Authors
Tadeusz ZającKatedra Szczegółowej Uprawy Roślin, Akademia Rolnicza w Krakowie Poland
Authors
Franciszek BorowiecKatedra Żywienia Zwierząt, Akademia Rolnicza w Krakowie Poland
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