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Analýza ztrát selat v konkrétním chovu
Fabiánek, Tomáš
The aim of this thesis was to evalulate reproductive traits of sows in specific farm. All data was collected in period 2017-2021 from sows which are raised by agricultural company GenAgro Říčany a.s. In data there are informations about 3862 litters in total. In sows there was observed gestation length, number of piglets total born, number of liveborn piglets, stillborn piglets, weaned piglets, preweaning mortality in litters and reasons for their elimination. There is evalulation of effect of year, parity and gestation length on these reproductive traits in this thesis also. Statistica and R programs were used to perform this evalulation. Average gestation length for the whole period was 113,92 days. Average number of piglets total born was 15,74. Average number of liveborn piglets was 12,84 and stillborn piglets was 2,89. Average number of weaned piglets was 11,86. Average number of preweaning mortality was 1,78. There was observed significant effect of year, parity and gestation length on reproductive traits in this thesis.
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Zhodnocení chovu prasat na rodinné farmě se zaměřením na reprodukční vlastnosti prasnic
Králová, Marie
In this diploma thesis I focused on evaluation of reproductive characteristics on a selected family farm. In the first part, I conducted a literature study on a given topic, where I described fertility and milkiness of sows, the birth process and the fertility of boars. Further, I described different breeds that were used in an experiment. The final part of literature study focused on the general economic review of pig production in the Czech Republic and in the European Union. In the practical part of my thesis, I observed reproductive characteristics of sows raised on a family farm in Stavěšice. The practical research monitored the whole number of piglets born, the number of piglets born alive and the number of piglets weaned. Further, the weight and the gender of piglets was monitored as well as the preweaning losses of piglets, the gestation length, the average daily weight gain and the boar influence on the gender and the weight of piglets. The concluding part of the thesis consists of the economic analysis of pig production in general and the economic analysis of the farm in Stavěšice.
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