Analýza stáda českého strakatého skotu v podhorské oblasti

The aim of the bachelor thesis was analyze of a milk production, fertility and the assessment of the effect on a lactation sequence on the performance in a herd of a Czech pied cattle kept on a family farm at a foothill. Values of 65 Czech pied dairy cow which ended the lactation in 2016 was adapted in the thesis. The dairy cows was sorted into four groups by the lactation sequence (the 1st lactation, the 2nd lactation, the 3rd lactation, the 4th lactation). The production and a quality of the milk was evaluated through the whole herd during 2016. The average production by the lactation sequence was in the 1st lactation 4286 kilogrammes of milk at P 0.001, the 2nd lactation 5888 kilogrammes of milk at P 0.001, the 3rd lactation 5783 kilogrammes of milk at P 0.001 and in the 4th and next lactations 6364 kilogrammes of the milk, the production of the whole herd was 5580 kilogrammes contains 3.94 % of the fat, 3.32 % of the proteins, 5.03 % of the lactose, 229 thousand/millilitre of somatic cells. The average age at the first calving was 1037 days, the length of the herd's interval was 394 days, the insemination interval was 96 days, and the service period was 111 days