Characteristics and variability of udder scores of Simmental first calving heifers

Visual assessment and recognition of milk performance traits cows are preliminary indicators yield, longevity, as well reproductive abilities the animal, which is very important from aspect economy production. Deficiencies in udder lead to poorer production, difficult milking premature weaning herd. The paper examines frequency desirable scores for a certain trait first-calving heifers distinguished by way keeping (heads reared individual producers/holdings heads on farm) origin (domestic imported animals), influence these two factors observed traits. Five were analyzed: front length, rear height, central ligament, depth total 954 Simmental heifers. Observed rearing, higher all achieved farm, while according cows, was compared domestic cows. housing/keeping origin, examined ?2 test linear (frequency scores) statistically highly significant (p?0.001), analysis variance (F test) showed high significance (p?0.001) interaction method rearing ligament depth, (p?0.05) height udder, however, no statistical (p>0.05) this established other (length udder).