Abstract Nowadays most of the Italian chickens’ breeds are replaced with commercial hybrids characterised by higher productive performance. However, the safeguard of biodiversity and consequently the genetic variability are a very important issue, and for this reason, it is fundamental to include local strains in preservation programs. In Italy, the poultry Genealogic Book has been recently constituted, and includes 22 chicken breeds. The diffusion of these strains is strictly linked to the territory of origin, in particular in the Central Italy, the Ancona and Livorno chicken breeds are the mainly widespread ones. The aim of this study was to determine the consistency and the characteristics of the farms involved in the farming of Ancona and Livorno chicken breeds in Central Italy. A survey to analyse the facilities, the human resources and the chicken population consistencies was conducted in the farms of Abruzzo, Lazio, Marche, Tuscany and Umbria regions. All the investigated farms can be identified as ‘hobby-farms’ being small scale ones and leading the breeding of Ancona and Livorno chickens as a secondary business. The survey also confirmed that the presence of the strains depends on the region: 100% of Marche farms bred Ancona whereas, in Tuscany the Livorno breed is the most common. Highlights A survey in centre Italy was carried out to determine the consistency of Ancona and Livorno chicken breeds; The Ancona and Livorno chickens breed were reared in small scale farms; The widespread of the breeds depend on the region: Ancona breed is most present in the Marche region while the Livorno is mainly bred in Tuscany.

中文翻译：

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意大利中部安科纳和利沃诺家禽品种的分布和一致性

摘要 如今，大多数意大利鸡的品种都被具有更高生产性能的商业杂交鸡所取代。然而，保护生物多样性和遗传变异性是一个非常重要的问题，因此，将本地菌株纳入保护计划至关重要。在意大利，最近制定了家禽系谱书，其中包括 22 个鸡品种。这些品系的传播与原产地密切相关，特别是在意大利中部，安科纳和利沃诺鸡品种是主要分布的品种。本研究的目的是确定意大利中部安科纳和利沃诺鸡养殖场的一致性和特征。对设施进行分析的调查，人力资源和鸡群一致性在阿布鲁佐、拉齐奥、马尔凯、托斯卡纳和翁布里亚地区的农场进行。所有被调查的农场都可以被确定为“业余农场”，属于小规模农场，以安科纳和利沃诺鸡的养殖为次要业务。调查还证实，菌株的存在取决于地区：100% 的马尔凯农场养殖安科纳，而在托斯卡纳，利沃诺品种是最常见的。亮点 在意大利中部进行了一项调查，以确定安科纳和利沃诺鸡品种的一致性；Ancona 和 Livorno 鸡是在小规模农场饲养的；品种的广泛分布取决于该地区：安科纳品种在马尔凯地区最为常见，而利沃诺品种主要在托斯卡纳繁殖。