Modern methods of dairy cows nutrition

KOUKOLOVÁ, Veronika, JANČÍK, Filip, VÝBORNÁ, Alena, KUMPRECHTOVÁ, Dana, KUBELKOVÁ, Petra, HOMOLKA. Petr a PŘENOSILOVÁ, Věra., 2021 Modern methods of dairy cows nutrition. In Audiovizuální tvorba. Praha Uhříněves: Výzkumný ústav živočišné výroby v.v.i., s. . ISSN
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Methods for evaluating the quality of feed and feed rations include both sensory assessments and laboratory methods for determining the chemical composition. Another important parameter for the subsequent compilation of feed rations is the determination of feed digestibility. This indicator is determined in vitro, ie in the laboratory, using industrial enzymes or in situ, by a special procedure directly in the rumen of the animal. One of the most modern ways to monitor the processes in the digestive tract of ruminants, especially in the rumen and the overall health of the animals are the so-called “chewing meters” or pH probes. The first device allows monitoring the time for which the cow eats or chews, as well as the physical activity of the animal (movement). The time of eating and chewing describes the welfare of the animals and, if necessary, draws attention to possible health problems at the current time. The level of activity of the animal may indicate the occurrence of oestrus or health problems of the limbs. pH probes are one of the components of modern monitoring of dairy cows’ health, especially in the rumen, where they allow continuous measurement of pH and rumen environment and in case of higher critical values ​​warn in time of incipient health problems (acidosis), which can either provide individual treatment of the animal, or by changing the feed ration to affect the health of the whole group of animals.