engleski

Correlation between body mass and measurements of healthy and pathologically altered hooves in service bulls

The aim of this paper was to determine the standard measures of the hoof: length, height, heel height and hoof surface in breeding bulls as indicators for the correction of hoofs. The paper deals with healthy and pathologically altered hooves of 11 Simmental bulls, owned by the Center for Animal Reproduction of Croatia, Zagreb, Croatia. After measuring these dimensions, their mean values were calculated, and a statistically significant difference between values within each group of parameters and a certain correlation between the mean values and weight of each bull was determined. The average length of the front leg hoof in investigated breeds of bulls was 9.39 cm, and the average length of the hind leg hoof was 9.92 cm. The average height of the front leg hoof was 8.63 cm and average height of the rear leg hoof was 8.65 cm. The average hoof heel height in the front legs of researched bulls was 5.93 cm, and average height of the rear leg hoof heel was 5.09 cm. The average surface of the front leg hoof was 122.46 cm² and the rear hoof 102.49 cm². A significant and a very high correlation exists for the total area of hoofs in relation to body mass of breeding bulls, and this correlation is more pronounced in the hoof surface of the front leg and body weight than the surface of the hind leg hoof and body weight. Hoof area increases with increasing body weight and degree of correlation is more pronounced in the front legs than the rear. This is related to the fact that the front legs suffer greater physiological load.

tjelesna masa; papci; rasplodni bikovi

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