Abstract
The article examines the influence of domestic feed dispensers’ technical characteristics on the quality of preparing various types of feed for beef cattle breeding. Among the studied options for preparation and distribution of feed for beef cattle are mixer-feeders, which in the form of mobile trailers, trailers, semitrailers and stationary installations are universal transport and technological means for crushing, mixing, unloading various types of feed and feed mixtures: long-fiber green mass, silage, haylage, loose and pressed hay, straw, briquetted, wet and frozen fodder. Domestic feed dispensers are suitable for mixing various feed components into homogeneous (95-98%) grain mixtures, technical specialized feed mixtures, etc., with automated electronic weighing systems, control of the quantity and quality of feed, with the production of feed fraction up to 10 mm and taking into account the requirements for humidity. The models have options for the injection of liquid components: water, oils, vitamins, etc. The main structures of the feed dispensers are horizontal and vertical, for processing ingredients with a density of 300-500 kg/m3 into a loose mass without loss of nutritional value. The volume of the bunkers varies from 3 to 20 m3; dimensions of various modifications of the model range are approximately the same: width 1.5-2.3 m, length 3.5-7.7 m, height 1.7-3.2 m. The average weight of horizontal models is 12.5% more than vertical. Horizontal feed mixers are designed for the preparation of protein mineral and vitamin supplements and compound feeds, vertical feed mixers for the main ration. Components - loose, dry, wet, liquid and heavy ones - are prepared in a mixture as a percentage in accordance with the recipe. Premixes, bran, cake, grain meal are also used as fillers.
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