Contact with adult hen affects development of caecal microbiota in newly hatched chicks
Contact with adult hen affects development of caecal microbiota in newly hatched chicks
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DOI：
10.1371/journal.pone.0212446
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发表时间：
2019-03-06
期刊：
影响因子：
3.7
通讯作者：
Rychlik, Ivan
中科院分区：
文献类型：
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作者：
Kubasova, Tereza;Kollarcikova, Miloslava;Rychlik, Ivan
商业生产中的鸡在清洁的孵化场环境中孵化，不与成年母鸡接触。然而，原鸡进化为在与成年母鸡接触的巢中孵化，这可能是肠道微生物群的供体。因此，在这项研究中，我们解决了新孵化的鸡与或不与成年母鸡接触的微生物群发育问题。我们发现，母鸡和新孵出的鸡之间仅仅24小时的接触就足以将母鸡肠道微生物群转移到鸡身上。母鸡是拟杆菌和放线菌的有效供体。然而，除了粪杆菌属和属于阴性菌纲的细菌物种外，母鸡并不是革兰氏阳性厚壁菌门的重要来源。虽然常见于鸡肠道，但来自丹毒丝菌科、毛螺菌科和瘤胃球菌科的乳杆菌和分离物因此来自环境来源而不是来自母鸡。这些观察结果可能会对新一代家禽益生菌的循证设计产生相当大的影响。
Chickens in commercial production are hatched in a clean hatchery environment in the absence of any contact with adult hens. However, Gallus gallus evolved to be hatched in a nest in contact with an adult hen which may act as a donor of gut microbiota. In this study, we therefore addressed the issue of microbiota development in newly hatched chickens with or without contact with an adult hen. We found that a mere 24-hour-long contact between a hen and newly hatched chickens was long enough for transfer of hen gut microbiota to chickens. Hens were efficient donors of Bacteroidetes and Actinobacteria. However, except for genus Faecalibacterium and bacterial species belonging to class Negativicutes, hens did not act as an important source of Gram-positive Firmicutes. Though common to the chicken intestinal tract, Lactobacilli and isolates from families Erysipelotrichaceae, Lachnospiraceae and Ruminococcaceae therefore originated from environmental sources instead of from the hens. These observation may have considerable consequences for the evidence-based design of the new generation of probiotics for poultry.