Institute of Animal Husbandry and Veterinary Medicine, Xizang Academy of Agriculture and Animal Husbandry Sciences, Lhasa, 850009, China; Key Laboratory of Livestock and Poultry Genetics and Breeding on Qinghai-Tibet Plateau, Ministry of Agriculture and Rural Affairs, Lhasa, 850009, China.
Institute of Animal Husbandry and Veterinary Medicine, Xizang Academy of Agriculture and Animal Husbandry Sciences, Lhasa, 850009, China.
Microb Pathog. 2024 Dec;197:107101. doi: 10.1016/j.micpath.2024.107101. Epub 2024 Nov 2.
The gut microbiota has been demonstrated to play an important role in host immunity, metabolism, digestion, and growth. However, studies regarding the gut microbiota in Tibetan chickens remains scarce in comparison with other poultry breeds. Here, we investigated the gut microbial characteristics of Tibetan chickens and Arbor Acres broiler chickens (AA broiler chickens) and compare their gut microbial differences. For this purpose, we collected cecal samples from 10 Tibetan chickens and 10 AA broiler chickens for amplicon sequencing. Results indicated that Tibetan chickens exhibited higher gut microbial diversity and abundance compared with AA broiler chickens. Moreover, PCoA-based scatter plot analysis showed that the gut microbial structure of the both breeds was significantly different. Although the dominant bacterial phyla (Firmicutes, Firmicutes and Bacteroidota) of Tibetan chickens and AA broiler chickens were the same, the abundance of some bacterial phyla and genera changed significantly. Microbial taxonomic analysis indicated that the relative abundance of 876 genera of 20 phylum in Tibetan chickens increased significantly, while the relative abundance of 160 genera of 3 phyla decreased significantly compared with AA broiler chickens. In summary, these results indicated that there are significant differences in the gut microbiota between Tibetan chickens and AA broiler chickens. This is an important exploration of the gut microbial characteristics and distribution of Tibetan chickens. The findings may contribute to promoting the development of the Tibetan chicken's industry and reveal the adaptability of Tibetan chickens to the environment.
肠道微生物群已被证明在宿主免疫、代谢、消化和生长中发挥重要作用。然而，与其他家禽品种相比，关于藏鸡肠道微生物群的研究仍然很少。在这里，我们研究了藏鸡和阿伯丁-安格斯肉鸡（AA 肉鸡）的肠道微生物特征，并比较了它们的肠道微生物差异。为此，我们收集了 10 只藏鸡和 10 只 AA 肉鸡的盲肠样本进行扩增子测序。结果表明，藏鸡的肠道微生物多样性和丰度均高于 AA 肉鸡。此外，基于 PCoA 的散点图分析表明，这两个品种的肠道微生物结构存在显著差异。尽管藏鸡和 AA 肉鸡的优势细菌门（Firmicutes、Firmicutes 和 Bacteroidota）相同，但一些细菌门和属的丰度变化显著。微生物分类学分析表明，与 AA 肉鸡相比，藏鸡 20 个门的 876 个属的相对丰度显著增加，而 3 个门的 160 个属的相对丰度显著减少。综上所述，这些结果表明藏鸡和 AA 肉鸡的肠道微生物群存在显著差异。这是对藏鸡肠道微生物特征和分布的重要探索。研究结果可能有助于促进藏鸡产业的发展，并揭示藏鸡对环境的适应性。
