The bachelor thesis describes the history and breeding of the Czech-Moravian Belgian horse breed. Its development, current rearing and areas of its use. This breed is also referred to as the Belgian horse, or the Belgian draft horse is the most common breed of cold-blooded horses. Part of the bachelor thesis is an analysis of the frequency of use of stallions in insemination. Stallions in Tlumačov and Písek stud farms were monitored. Data collection took place in the case of Tlumačov between 2009 and 2020. Data for the years 2012 to 2019 were collected in the Písek. The percentage of conception of these stallions was evaluated. There were 11 stallions working in the stud farm in Písek, with which a total of 176 mares were inseminated. The average conception in this stud farm is 58.86 %. There were 9 stallions in Tlumačov, with which 200 mares were inseminated, with an average conception value of 68.90 %
