Analýza vztahu mezi onemocněním paznehtů a mléčnou užitkovostí dojnic českého strakatého skotu ve vybraném chovu

The content of this diploma thesis was the analysis of dairy cows' limb disorder in the relationship with milk yield, finding the cause of the disorder origin and possi-bilities of its treatment. In the watched breeding there were evaluated 167 dairy cows of Czech Simmen-tal cattle suffering acute disease of cloven hooves. The analysis in the enterprise las-ted from January to September 2020. Within eight curative cycles takes place a treatment of limping dairy cows' cloven hooves. Monitored parameters were milk yield (kg of milk), content of protein (%), fat (%) and somatic cells. With increasing limping of dairy cows comes to a decrease in milk yield up to 5 kg milk per a dairy cow and a day. The most frequent disease of cloven hooves was abscess (47%). The second most frequent disease was dermatitis (30%). To other diseases belongs necrobacillosis, laminitis, cleft and mechanical injury of dairy cow limbs. The most afflicted were hind limbs (82%). As a consequence of disease of cloven hooves were removed 2 % of dairy cows