Physiological aspects of complete mixed diet digestion in complex stomach of ruminants on the example of cattle (Bos taurus taurus)

Modern systems of normalized cattle feeding are based on the position that different feeding technologies do not affect the processes of digestion and absorption of nutrients of the same diet. In our studies, data were obtained for the first time, indicating changes in the parameters of the ration digestion process in the complex stomach of cattle, depending on the method of feeding: separate delivery of separate feeds and simultaneous delivery by the form of the Total Mixed Ration (TMR). To determine mechanisms of increasing feed dry matter intake in cattle when they were switched to Total Mixed Ration feeding, daily flux rates of chyme, its chemical composition and digestibility of main nutrient groups in the compound stomach of young cattle were studied. A Latin square design experiment was carried out using two diets differing in the forage fodder to concentrated fodder ratio and two methods of feeding (separate distribution of feed and in the form of TMR) by the method of periods with two Ukrainian red-motley bulls ( Bos taurus taurus ) of 300 kg live weight, with a sluice T-shaped duodenal canula...