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The consequence of milk recording in dairy cattle breeding
Pokorná, Kamila ; Toušová, Renata (advisor) ; Ducháček, Jaromír (referee)
This thesis is elaborated a detailed review of literature to illuminate the importance of milk recording in breeds of dairy cows, which illustrates the benefits of milk recording for breeders. The emergence of milk recording in the Czech Republic dates back to 1905, when it began milk recording carried out by the Danish model. From the beginning of the milk recording was not met with such great success. Over time, the importance of milk recording in the Czech Republic grew. Patronage over milk recording over the years was taken by the International Committee for Animal Recording (ICAR), which includes the Czech Republic since 1992. The milk recording in the Czech Republic is performed using several methods. Official method A and unofficial methods B and F, wherein the method A is divided into A4-P, A4-A and A4-T. Milk recording in the Czech Republic is performed only properly educated personnel, who takes sample in individual farms. After sampling, the samples are transported and subsequently processed in laboratories for analysis of milk. Results of milk recording are important for the monetization of milk and breeding organization. The results of many years of breeding work, the main base are just the results of milk recording, were the reduction cows and increase milk production. Only the number of cows in lactation period from the year 2005 to 2014 fell by 50,636 dairy cows. To reduce dairy cows occurred precisely because of the increasing milk production. Larger quantities of milk milked from each cow meant that there was no need for such a large amount of dairy cattle. Milk production from 2005 to 2014 increased on average by 1,477 kg, which is the result of breeding work. Importance of milk recording is currently mainly breeding again. Results of milk recording are used to select animals and to organize and manage the herd. Results of performance tests are also used in numerous researches.
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