Fur animal breeding has a long history. In many countries several fur animal species (including the red fox) have been recognized as livestock. The aim of this study was to estimate the pedigree parameters in the population of red fox on a Polish breeding farm. The data set consisted of information on 39 434 individuals, including 18 697 females and 20 004 males (733 animals were of unknown sex), from the years 1956–2016. The following pedigree parameters were estimated: average number of discrete generation equivalents, individual inbreeding coefficient, total and effective number of founders, effective population size, average relationship, founder genome equivalent, effective number of non-founders, and genetic diversity coefficient. The population size changed in successive years. The average inbreeding level was 5.34% for the population as a whole, and 6.04% for the inbred population. The estimated effective number of founders of the population was 84.18. The founder genome equivalent, which indicates the anticipated loss of genetic diversity caused by genetic drift, reached 9.59 in 2016 from an initial value of 34.22 in 1956. The loss of genetic diversity caused by the unequal contribution of the founder alleles did not change significantly over the years. Generally, the results indicate the good pedigree structure (including pedigree completeness) of the population studied. This implies reliable estimation of the inbreeding level, as one of the most important parameters in the genetic improvement programme.

中文翻译：

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红狐（Vulpes vulpes）种群的谱系分析

毛皮动物育种历史悠久。在许多国家/地区，几种毛皮动物（包括赤狐）已被视为牲畜。这项研究的目的是评估波兰繁殖场中红狐种群的血统参数。数据集包括1956年至2016年间的39 434位个体的信息，包括18 697雌性和20 004雄性（733性别不明）。估计以下系谱参数：离散世代当量的平均数，个体近交系数，建立者的总数和有效数，有效种群数量，平均关系，建立者基因组当量，非建立者的有效数和遗传多样性系数。人口规模连续几年发生了变化。平均近亲繁殖水平为5。整体人口为34％，近交人口为6.04％。估计的有效创办人人数为84.18。创始人基因组当量，表明预期的遗传漂移造成的遗传多样性丧失，从1956年的初始值34.22到2016年达到9.59。创始人等位基因贡献不均等导致的遗传多样性丧失在这些年。通常，结果表明所研究的人群具有良好的血统结构（包括血统完整性）。这意味着对近交水平的可靠估计，这是遗传改良计划中最重要的参数之一。这表明由遗传漂移引起的预期遗传多样性丧失，从1956年的初始值34.22到2016年达到9.59。多年来，创始人等位基因贡献不均等导致的遗传多样性丧失没有显着变化。通常，结果表明所研究人群的血统结构良好（包括血统完整性）。这意味着对近交水平的可靠估计，这是遗传改良计划中最重要的参数之一。这表明由遗传漂移引起的预期遗传多样性丧失，从1956年的初始值34.22到2016年达到9.59。多年来，创始人等位基因贡献不均等导致的遗传多样性丧失没有显着变化。通常，结果表明所研究人群的血统结构良好（包括血统完整性）。这意味着对近交水平的可靠估计，这是遗传改良计划中最重要的参数之一。结果表明所研究人群具有良好的血统结构（包括血统完整性）。这意味着对近交水平的可靠估计，这是遗传改良计划中最重要的参数之一。结果表明所研究人群具有良好的血统结构（包括血统完整性）。这意味着对近交水平的可靠估计，这是遗传改良计划中最重要的参数之一。