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The experiments were carried out on 48 heifers (I exp.), 180 bull-calves (II exp.), 40 bulls (III exp.) and about 240 fattening cattle (training exp.). The animals were fed maize silage, B-mixture (control groups) and the protein-mineral concentrates (experimental groups). In the experiments were determined: body weight gains, the fodder consumption and the level of selected chemical components in...
The main part of the experiments perfomed in RZD Pruszowice in a period from 1987 to 1990 years (january - april) on 24 cows of black-white race divided into 2 or 3 groups and additionally in WOPR Łosiow on 180 cows. Cows in groups received maize silage and meadow hay or silage from a wilted grass or wilted red colver or alfalfa. All silages obtained good estimations in a Zimmer-Flieg scale. Mineral...
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