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Analýza působení mikroklimatu ve stáji na produkci, reprodukci a chování dojnic holštýnského skotu ve vybraném chovu

The aim of the diploma thesis was to elaborate a literary review on the topic: Analysis of microclimate effect in stable on production, reproduction and behaviour of the dairy cows of the Holstein cattle at the selected breeding. The practical part took part in ZD Hříšice, where in 2018 yearly measurements of temperatures and relative air humidity were performed using the Onset Hobo sensor. The AfiFarm system recorded daily milk yields from 355 Holstein dairy cows; performance control data were used as well. February was the coldest month with an average temperature of 5.42 °C. August was the warmest month with an average temperature 21.35 °C, simultaneously the lowest average relative humidity of 59.85 % was measured. In the production group of high-yielding dairy cows, which achieved an average milk yield of 35.6 kg, the average daily milk yield decreased by 3 kg in August. For a group of less production with an average daily production of 23 kg, production decreased by 2.3 kg. In August, the insemination index was 5.1 for cows and 2.4 for heifers. The results obtained from pedometers of dairy cows recorded the highest physical activity in July, it can therefore be assumed that they were lying less.

Identiferoai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:427841
Date January 2019
CreatorsZavadilová, Kristýna
Source SetsCzech ETDs
LanguageCzech
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/masterThesis
Rightsinfo:eu-repo/semantics/restrictedAccess

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