This diploma thesis is focused on producing dairy cows and their culling rates. The general goal of this work was to compare and to evaluate the culling rates of dairy cows on 2 independent farms with free range farming system from 2012 to 2014. The diploma thesis provides the facts about culling rates in heifers and in cows till 90 days after calving, reasons to be culled, the age at culling, the age at first calving, parity when the cows were culled and the comparison of milk parameters at culling. The study was compiled from the detailed data about 474 dairy or combined utility cows. Farm Senagro a.s. Senožaty disposes pure-blooded cows or crossbreds with 51-100% of principal breed in blood. Only purebred cows are raised at farm Nečerák Vystrkov. It is obvious that culling rate markedly over 30% from all of the cows at farm Senagro a.s. Senožaty negatively influences profitability of this farm. Vice versa farm Nečerák Vystrkov belongs into category which accomplishes recommended value.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:188663 |
| Date | January 2015 |
| Creators | KLAP, Martin |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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