Montoro-Dasi Laura, Villagra Arantxa, de Toro María, Pérez-Gracia María Teresa, Vega Santiago, Marin Clara
Instituto de Ciencia y Tecnología Animal, Universidad Politécnica de Valencia, 46022 Valencia, Spain.
Centro de Calidad Avícola y Alimentación Animal de la Comunidad Valenciana (CECAV), 12539 Castellón, Spain.
Animals (Basel). 2020 Aug 12;10(8):1401. doi: 10.3390/ani10081401.
Caecal microbiota and its modulation play an important role in poultry health, productivity and disease control. Moreover, due to the emergence of antimicrobial-resistant bacteria, society is pressing for a reduction in antibiotic administration by finding effective alternatives at farm level, such as less intensified production systems. Hence, the aim of this study was to characterise the caecal microbiota in two different broiler management systems, fast and slow-growing, using 16S rRNA sequencing analysis. To this end 576 broilers were reared in two different management systems (fast and slow-growing). Results showed that represented the dominant phylum for both systems. At the onset, was the second prevalent phylum for fast and slow-growing breeds, outnumbering the . However, during the rest of the production cycle, was more abundant than in both groups. Finally, regardless of the management system, the most predominant genera identified were spp., spp., spp., spp. and spp. In conclusion, fast and slow-growing broiler microbiota are in constant development throughout rearing, being relatively stable at 21 days of age. Regarding the genus, it should be noted that the three most abundant groups for both systems, spp., spp. and spp., are related to better productive performance and intestinal health.
盲肠微生物群及其调节在禽类健康、生产性能和疾病控制中发挥着重要作用。此外，由于抗药细菌的出现，社会迫切要求通过在农场层面寻找有效的替代方法来减少抗生素的使用，例如采用集约化程度较低的生产系统。因此，本研究的目的是使用16S rRNA测序分析来表征两种不同肉鸡管理系统（快速生长和慢速生长）中的盲肠微生物群。为此，576只肉鸡在两种不同的管理系统（快速生长和慢速生长）中饲养。结果表明， 代表了两个系统中的优势门。一开始， 是快速生长和慢速生长品种中第二普遍的门，数量超过 。然而，在生产周期的其余时间里，两组中 都比 更丰富。最后，无论管理系统如何，鉴定出的最主要属是 属、 属、 属、 属和 属。总之，快速生长和慢速生长的肉鸡微生物群在整个饲养过程中不断发展，在21日龄时相对稳定。关于属，应该注意的是，两个系统中最丰富的三个组， 属、 属和 属，与更好的生产性能和肠道健康有关。
