Benyshek L L, Little D E
J Anim Sci. 1982 Feb;54(2):258-63. doi: 10.2527/jas1982.542258x.
Field records (715) of pelvic measurements and growth characteristics were obtained from three herds of Simmental cattle in different areas of the country. Heritabilities for pelvic area, actual pelvic measures (horizontal and vertical measures), ratios of actual pelvic measures, birth weight, adjusted 205-d weaning weight, postweaning average daily gain, adjusted 365-d weight, weight/d of age and relative growth from weaning to 1 yr of age were computed. Genetic, phenotypic and environmental correlations among the various traits were estimated. The heritability of pelvic area was .53 +/- .14, indicating that it is a characteristic that should respond favourably to selection. Positive genetic correlations were found between pelvic area and the various growth characteristics, including birth weight (.73 +/- .25).
从该国不同地区的三个西门塔尔牛群中获取了骨盆测量和生长特征的实地记录（715份）。计算了骨盆面积、实际骨盆测量值（水平和垂直测量值）、实际骨盆测量值的比率、出生体重、调整后的205日龄断奶体重、断奶后平均日增重、调整后的365日龄体重、体重/日龄以及从断奶到1岁的相对生长的遗传力。估计了各种性状之间的遗传、表型和环境相关性。骨盆面积的遗传力为0.53±0.14，表明它是一个对选择有良好反应的特征。在骨盆面积与各种生长特征之间发现了正遗传相关性，包括出生体重（0.73±0.25）。
