부산대학교 도서관

The study of the formalized characteristics' effect of the spatial location of milking equipment, cows and operators in connection with the time spent on working operations is presented. The material for the research was timekeeping of the milking process using different equipment. It has been established that the correlation coefficient between the length of the working area for milking and the duration of the working operation "transition between animals and equipment" is r=0.330 (p<0.001). The measure of effect size of milking trench's presence/absence factor on the time spent by the operator on milking 1 cow was η²=0.779 (p<0.001). The time when the machine milking operator stays in a position with a strongly bent torso (over 40°) during milking using a trench is almost 50 times less (p<0.001) compared to the corresponding time during milking without using a milking trench. When working in the trench, the operator does not perform working actions in the "squatting" position at all. If milking occurs in stalls, then a small distance between adjacent cows makes it difficult for the operator to access the udder. [ABSTRACT FROM AUTHOR]