Lüpke L, Distl O
Institut für Tierzucht und Vererbungsforschung, Tierärztliche Hochschule Hannover.
Dtsch Tierarztl Wochenschr. 2004 Feb;111(2):70-5.
The Hanoveranian Scenthound is a purebred hound with a long breeding history and an exceptional high hunting performance. The kennel club Hirschmann e. V. has the goal to conserve the very high level of performance in the small population of the Hanoveranian Scenthound. Therefore, the structure of the current population was analyzed by estimating the gene contributions of the founder breeds of other European kennel clubs, coefficients of relationships, rates of inbreeding and coefficients of inbreeding. All current dogs (n = 334) were included in this study. The pedigrees had a degree completeness of 73.3% for 10 generations. The large influence of the Hanoveranian Scenthound bred in the Austrian kennel club was obvious. The gene contribution of these dog population was with 46.5% much more higher than the gene contribution from the German population with 29.8%. The gene contribution of Czech, Swiss and Hungarian dogs was between 4.3% and 7.6%. The mean coefficient of inbreeding of the current German population was 9.2% with the maximum at 15.6%. For the last 10 generations the increase of the coefficient of inbreeding per generation was 0.71%, regarding the degree of completeness of the pedigrees the coefficient of inbreeding per generation increased by 0.96%. For the last generation the rate of inbreeding amounted to 0.09%. The rate of inbreeding expected for the next generation is 0.02%. Also the effective population size (N(e)) in the current population of the Hanoveranian Scenthound being 70.9 exceeds the critical value of N(e) = 50. The mean coefficient of relationship in the current population was 11.2% with the maximum at 73.6%. The present incrossing of Hanoveranian Scenthounds from other European countries reduced the coefficient of inbreeding.
汉诺威猎犬是一种纯种猎犬，繁育历史悠久，具有卓越的高狩猎性能。德国猎犬俱乐部希尔施曼股份有限公司的目标是在汉诺威猎犬的小种群中保持非常高的性能水平。因此，通过估计其他欧洲犬舍俱乐部的奠基品种的基因贡献、亲缘系数、近亲繁殖率和近亲繁殖系数，对当前种群的结构进行了分析。本研究纳入了所有现存的犬只（n = 334）。10代谱系的完整度为73.3%。奥地利犬舍俱乐部繁育的汉诺威猎犬的巨大影响显而易见。这些犬只群体的基因贡献为46.5%，远高于德国犬只群体29.8%的基因贡献。捷克、瑞士和匈牙利犬只的基因贡献在4.3%至7.6%之间。当前德国犬只群体的平均近亲繁殖系数为9.2%，最高为15.6%。在过去的10代中，每代近亲繁殖系数的增幅为0.71%，考虑到谱系的完整度，每代近亲繁殖系数增加了0.96%。上一代的近亲繁殖率为0.09%。下一代预期的近亲繁殖率为0.02%。汉诺威猎犬当前种群的有效种群大小（N(e)）为70.9，超过了临界值N(e) = 50。当前种群的平均亲缘系数为11.2%，最高为73.6%。目前来自其他欧洲国家的汉诺威猎犬的杂交降低了近亲繁殖系数。
