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Porovnání růstových schopností telat a mladého skotu různých masných plemen
KOVÁŘOVÁ, Tereza
Abstract Optimal daily gain in rearing and fattening of meat cattle, should be the basics of meat production. The breeder ensured the satisfactory enviromental conditions and good nutrition (wellfare), which significantly afect animals development. Gender, age, slaughter weight, nutrition, method of fattening and housing system, belongs to the main factors affecting meat production. The aim of the study was to compare average weights and calculate average daily gain of heifers and bullocks of evaluated beef breeds. Conditions of breed of all herds of meat cattle were same and all herds were housed freely. Breeds evaluated in experiment were Hereford, Simmental, Charolais and Limousin. Each herd was divided by beef breeds and gender and every herd was made up 20 - 30 pieces. Birth weight of calf was estimated according to breeds standards and employee experience. Furthermore was weighing at 5,6 and 7 months for all monitored pieces. Weighing at 12th and 14th months of age was just at the bulls. All weighings was taken by digital weighing-machine. Average gains and weights were calculated from obtained data. The highest weight from the both genders and the highest gains at bulls had attained Charolais. Limousin had best results at heifers. Except for small differences between breeds and genders were the gains same at the all monitored pieces. There was no statistically significant evidence of difference between influences of breeds and age according to statistically processed data of size of average daily gain of weight (P = 0,645862).
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