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The objective of this study was to investigate the relationship among layer breed, microbial structure and odor production.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Thirty Hy-Line Gray and thirty Lohmann Pink laying hens were used in this study to determine the impact of cecal microbial structure on odor production of laying hens. The hens were managed under the same husbandry and dietary regimes. Results of in vivo experiments showed a lower hydrogen sulfide (H\n                      <jats:sub>2<\/jats:sub>\n                      S) production from Hy-Line hens and a lower concentration of soluble sulfide (S\n                      <jats:sup>2\u2212<\/jats:sup>\n                      ) but a higher concentration of butyrate in the cecal content of the Hy-Line hens compared to Lohmann Pink hens (\n                      <jats:italic>P\u2009&lt;<\/jats:italic>\n                      \u00a00.05), which was consistent with the in vitro experiments (\n                      <jats:italic>P\u2009&lt;<\/jats:italic>\n                      \u00a00.05). However, ammonia (NH\n                      <jats:sub>3<\/jats:sub>\n                      ) production was not different between genotypes (\n                      <jats:italic>P\u2009&gt;<\/jats:italic>\n                      \u00a00.05). Significant microbial structural differences existed between the two breed groups. The relative abundance of some butyrate producers (including\n                      <jats:italic>Butyricicoccus<\/jats:italic>\n                      ,\n                      <jats:italic>Butyricimonas<\/jats:italic>\n                      and\n                      <jats:italic>Roseburia<\/jats:italic>\n                      ) and sulfate-reducing bacteria (including\n                      <jats:italic>Mailhella<\/jats:italic>\n                      and\n                      <jats:italic>Lawsonia<\/jats:italic>\n                      ) were found to be significantly correlated with odor production and were shown to be different in the 16S rRNA and PCR data between two breed groups. Furthermore, some bacterial metabolism pathways associated with energy extraction and carbohydrate utilization (oxidative phosphorylation, pyruvate metabolism, energy metabolism, two component system and secretion system) were overrepresented in the Hy-Line hens, while several amino acid metabolism-associated pathways (amino acid related enzymes, arginine and proline metabolism, and alanine-aspartate and glutamate metabolism) were more prevalent in the Lohmann hens.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The results of this study suggest that genotype of laying hens influence cecal microbiota, which in turn modulates their odor production. Our study provides references for breeding and enteric manipulation for defined microbiota to reduce odor gas emission.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s12864-019-6115-1","type":"journal-article","created":{"date-parts":[[2019,10,23]],"date-time":"2019-10-23T09:15:06Z","timestamp":1571822106000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":31,"title":["The microbiota structure in the cecum of laying hens contributes to dissimilar H2S production"],"prefix":"10.1186","volume":"20","author":[{"given":"Chun-Bo","family":"Huang","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lei","family":"Xiao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Si-Cheng","family":"Xing","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing-Yuan","family":"Chen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yi-Wen","family":"Yang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yang","family":"Zhou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Chen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juan-Boo","family":"Liang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jian-Dui","family":"Mi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yan","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yin-Bao","family":"Wu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xin-Di","family":"Liao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2019,10,23]]},"reference":[{"issue":"4","key":"6115_CR1","doi-asserted-by":"publisher","first-page":"533","DOI":"10.1111\/j.1469-185X.2009.00086.x","volume":"84","author":"TJ McWhorter","year":"2009","unstructured":"McWhorter TJ, Caviedes-Vidal E, Karasov WH. 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