意大利比萨省马塞羊的特征和种群遗传趋势

IF 2.1 4区 综合性期刊 Q2 MULTIDISCIPLINARY SCIENCES Rendiconti Lincei-Scienze Fisiche E Naturali Pub Date : 2023-10-17 DOI:10.1007/s12210-023-01198-6
Lorella Giuliotti, Maria Novella Benvenuti, Emilia Ventura, Pancrazio Fresi, Giovanna Preziuso, Francesca Cecchi
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引用次数: 0

摘要

保护动物品种是一个国家经济、环境和文化的关键。本研究收集了关于马塞羊品种的所有可用信息,并分析了自1976年以来它们在比萨的种群遗传趋势。数据由aso . na . pa提供。采用Jmp软件进行描述性统计分析。采用CFC、ENDOG和pedigree viewer软件对10393只动物(全种群- wp)的家系参数进行分析。最近15年出生的动物为参考种群(Reference Population, RP),亲本未知的动物为基础种群(Base Population, BP)。人口统计结果显示,羊群登记簿上的后代登记呈不稳定趋势,有两个时期羔羊登记数量急剧下降,而母羊和公羊的平均登记新生儿数量分别为1.5和18.2。共有6456只动物代表RP,其中只有1059只动物(16.4%)的父母都是已知的。BP由7156只动物组成,因此突出了缺乏父系和母系登记,这阻碍了对遗传参数的准确评估。WP和RP的平均近交系数分别为0.78%和0.046%。自交系数量,WP为575个,RP为17个。本研究为育种人员和技术人员提供了一个工具,旨在通过有效的育种计划来保护和利用马塞羊的遗传资源。
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Massese sheep characteristics and demo-genetic trends in the province of Pisa (Italy)
Abstract Preserving animal breeds is key to a country’s economy, environment and culture. The present study collects all the available information on the Massese sheep breed and analyzes their demo-genetic trends in Pisa since 1976. Data were provided by Asso.Na.Pa. Descriptive statistics were analysed using Jmp software. The pedigree parameters of a total of 10,393 animals (whole population-WP) were analyzed using CFC, ENDOG and Pedigree viewer software. Animals born in the last fifteen years represented the Reference Population (RP), while animals with one or two unknown parents constituted the Base Population (BP). Demographic results showed an inconstant trend of offspring registration in the Herd book with two periods of a dramatic decline in lamb registrations and a substantially short productivity with a mean number of registered newborns of 1.5 and 18.2 for ewes and rams, respectively. A total of 6456 animals represented the RP, of which only 1059 animals (16.4%) had both known parents. The BP consisted of 7156 animals, thus highlighting the lack of sire and dam registration which prevented an accurate evaluation of the genetic parameters. The average inbreeding coefficient in the WP was 0.78%, and 0.046% in the RP. The number of inbreds was 575 in the WP and 17 in the RP. The present study represents a tool for breeders and technicians aimed at conserving and exploiting the genetic resources of Massese sheep through efficient breeding plans.
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来源期刊
Rendiconti Lincei-Scienze Fisiche E Naturali
Rendiconti Lincei-Scienze Fisiche E Naturali MULTIDISCIPLINARY SCIENCES-
CiteScore
4.10
自引率
10.00%
发文量
70
审稿时长
>12 weeks
期刊介绍: Rendiconti is the interdisciplinary scientific journal of the Accademia dei Lincei, the Italian National Academy, situated in Rome, which publishes original articles in the fi elds of geosciences, envi ronmental sciences, and biological and biomedi cal sciences. Particular interest is accorded to papers dealing with modern trends in the natural sciences, with interdisciplinary relationships and with the roots and historical development of these disciplines.
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