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Analýza průběhu výkrmu býků českého strakatého plemene
BALDÍK, Rudolf
Czech mottled cattle is the original breed of cattle in the Czech Republic. It is part of a worldwide population of mottled breeds of the same phylogenetic origin, widespread, for all its continents, for its excellent properties and widespread use. It currently accounts for about one half of the total cattle population in the Czech Republic. The aim of the work was to monitor the growth of fattened bulls, focusing on the last half year of fattening and trying to determine the inflection point of fattening this breed under given breeding conditions. Furthermore, the monitored bulls were compared on the basis of genetic potential, ie the representation of the blood of the Czech spotted breed and according to the father. Fattening bulls are only from their own breeding as weaners from milked herds. The bulls are fattened up to the age of 24 months and are divided into groups of about 24pcs, depending on the weight. The feed is given to them twice a day, at regular intervals, with a mixing feed wagon with weight. The feed consists of corn silage, clover-grass silage and a core mixture, which the company produces itself. The results obtained did not show a statistically significant difference in the pre-slaughter live weight by father line, by month of birth of the individuals studied or by age at slaughter. Only by comparing the live weight before slaughter by SEUROP, there was a statistically significant difference.
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Zhodnocení výkrmu býků na vybrané farmě
BALDÍK, Rudolf
The main concern of farmers cow suckler is production of quality beef, maintaining the natural landscape and cultural condition and rural development. The aim of the study was to compare in terms of the economic outcome of two periods of one year, when the first period breeder bulls was producing a year-round silage and hay, and in the second period during the season he fed green fodder. Young bulls are fattened his own breeding and the rest is bought as weanlings at the age of 6-8 months. The bulls are fattened until the age of about 24 months. The Bulls were divided into 2 groups: the first group of bulls (the year of slaughter 2012), which was fed clover silage, hay with the addition of a second core group of bulls (the year of slaughter 2014), which was reared as a group in 2012, but the summer is replaced by fresh clover silage, clover-grass. The results from both groups fattened bulls show that bulls are fattened summer fresh clover forage, they have better gains and achieve higher slaughter weight than bulls fattened only clover silage, at the same time fattening. The advantage of this method of feeding is economical savings on feeding day.
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