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Impact of conservation measures on demography and genetic variability of livestock breeds.
Animal ( IF 3.7 ) Pub Date : null , DOI: 10.1017/s1751731119002672
E Gicquel 1 , P Boettcher 1 , B Besbes 1 , S Furre 2 , J Fernández 3 , C Danchin-Burge 4 , B Berger 5 , R Baumung 1 , J R J Feijóo 6 , G Leroy 1
Affiliation  

Conservation of animal genetic resources requires regular monitoring and interventions to maintain population size and manage genetic variability. This study uses genealogical information to evaluate the impact of conservation measures in Europe, using (i) data from the Domestic Animal Diversity Information System (DAD-IS) and (ii) a posteriori assessment of the impact of various conservation measures on the genetic variability of 17 at-risk breeds with a wide range of interventions. Analysis of data from DAD-IS showed that 68% of national breed populations reported to receive financial support showed increasing demographic trends, v. 51% for those that did not. The majority of the 17 at-risk breeds have increased their numbers of registered animals over the last 20 years, but the changes in genetic variability per breed have not always matched the trend in population size. These differences in trends observed in the different metrics might be explained by the tensions between interventions to maintain genetic variability, and development initiatives which lead to intensification of selection.

中文翻译:

保护措施对牲畜的人口统计学和遗传变异性的影响。

保护动物遗传资源需要定期监测和干预,以维持种群规模和管理遗传变异。这项研究使用家谱信息来评估欧洲保护措施的影响,使用(i)来自家畜多样性信息系统(DAD-IS)的数据,以及(ii)对各种保护措施对遗传变异性的影响进行后验评估对17种高风险品种进行了广泛干预。对DAD-IS数据的分析表明,据报告获得财政支持的68%的国家繁殖种群显示出人口趋势的增长,而没有获得经济支持的种群则为51%。在过去20年中,这17个高风险品种中的大多数已增加了注册动物的数量,但是每个品种遗传变异的变化并不总是与种群规模的趋势相吻合。在不同指标中观察到的趋势差异可能是由于维持遗传变异的干预措施和导致选择加剧的发展计划之间的紧张关系所致。
更新日期:2020-03-20
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