Tözsér J, Mézes M, Süpek Z, Nagy A, Nagy N
Institute of Animal Husbandry, Gödöllö University of Agricultural Sciences, Hungary.
Acta Vet Hung. 1996;44(3):263-7.
Between 1989 and 1992, investigations were carried out on a total of 164 young Hungarian Simmental bulls of different age at central performance testing stations and on farms (field test) to measure the scrotal circumference of bulls and describe its relationships with age and body weight. An age-related increase was found in average scrotal circumference in the populations studied. Average scrotal circumference of Hungarian Simmental bulls was 17.86 cm at 5 months of age and 37.06-37.72 cm at 13-14 months of age. The coefficient of correlation between age and scrotal circumference was between r = 0.31 and r = 0.40, while that between scrotal circumference and body weight varied between r = 0.35 and r = 0.59. The partial regression coefficients for age and body weight showed values of r = 0.003-0.063 and r = 0.017-0.032, respectively. The multiple coefficient of correlation was between R = 0.47 and R = 0.59.
1989年至1992年间，在匈牙利中央性能测试站和农场（实地测试）对总共164头不同年龄的匈牙利西门塔尔幼公牛进行了调查，以测量公牛的阴囊周长，并描述其与年龄和体重的关系。在所研究的牛群中，发现平均阴囊周长随年龄增长而增加。匈牙利西门塔尔公牛5月龄时的平均阴囊周长为17.86厘米，13 - 14月龄时为37.06 - 37.72厘米。年龄与阴囊周长之间的相关系数在r = 0.31至r = 0.40之间，而阴囊周长与体重之间的相关系数在r = 0.35至r = 0.59之间。年龄和体重的偏回归系数分别显示为r = 0.003 - 0.063和r = 0.017 - 0.032。复相关系数在R = 0.47至R = 0.59之间。
