Lingaas F, Rønningen K
Department of Animal Genetics, Norwegian College of Veterinary Medicine, Oslo.
Acta Vet Scand. 1991;32(1):115-22. doi: 10.1186/BF03547003.
A genetic analysis was performed on disease registrations from 70 Norwegian pig herds. This analysis was complicated by the small degree of cross classification of dams and sires across herds, and the relatively sparse use of artificial insemination. Herd effects seemed to be responsible for much of the variation in disease frequencies. The estimated heritabilities were relatively low. The results of this investigation also revealed positive phenotypic correlations between the investigated diseases.
对来自70个挪威猪群的疾病登记数据进行了遗传分析。由于不同猪群之间母猪和公猪的交叉分类程度较低，以及人工授精的使用相对较少，这项分析变得复杂。猪群效应似乎是疾病发生率差异的主要原因。估计的遗传力相对较低。这项调查的结果还揭示了所研究疾病之间存在正的表型相关性。
