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                "secondary-accession": "ERP138390",
                "centre-name": "INRA-META",
                "public-release-date": null,
                "study-abstract": "Only species representatives MAGs (n=2629) are available on this repository. Other MAGs can be downloaded from the Recherche Data Gouv data portal (https://doi.org/10.15454/FHPJH5)",
                "study-name": "Primary metagenome assemblies and Metagenome-Assembled Genomes of the MetaChick project",
                "data-origination": "SUBMITTED"
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        {
            "type": "studies",
            "id": "MGYS00006062",
            "attributes": {
                "samples-count": 210,
                "bioproject": "PRJEB41323",
                "accession": "MGYS00006062",
                "is-private": false,
                "last-update": "2023-01-18T21:50:31",
                "secondary-accession": "ERP125074",
                "centre-name": "UNIVERSITY OF COPENHAGEN",
                "public-release-date": null,
                "study-abstract": "Metagenomic raw reads, assemblies, and bins derived from HoloFood chicken caecum samples. Samples selected for this batch were deeply sequenced, and were randomised among trials (feed), age, and breed to overcome batch effect. The samples in this project contributed to the chicken caecum MAG catalogue (project: PRJEB55374 [ERP140263]).",
                "study-name": "HoloFood Chicken Caecum Metagenome – deeply sequenced batch",
                "data-origination": "SUBMITTED"
            },
            "relationships": {
                "analyses": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00006062/analyses?format=api"
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                },
                "publications": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00006062/publications?format=api"
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                },
                "biomes": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00006062/biomes?format=api"
                    },
                    "data": [
                        {
                            "type": "biomes",
                            "id": "root:Host-associated:Birds:Digestive system",
                            "links": {
                                "self": "https://www.ebi.ac.uk/metagenomics/api/v1/biomes/root:Host-associated:Birds:Digestive%20system?format=api"
                            }
                        },
                        {
                            "type": "biomes",
                            "id": "root:Host-associated:Birds:Digestive system:Digestive tube:Cecum",
                            "links": {
                                "self": "https://www.ebi.ac.uk/metagenomics/api/v1/biomes/root:Host-associated:Birds:Digestive%20system:Digestive%20tube:Cecum?format=api"
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            "links": {
                "self": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00006062?format=api"
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        },
        {
            "type": "studies",
            "id": "MGYS00006078",
            "attributes": {
                "samples-count": 24,
                "bioproject": "PRJEB50262",
                "accession": "MGYS00006078",
                "is-private": false,
                "last-update": "2022-11-14T12:48:59",
                "secondary-accession": "ERP134824",
                "centre-name": "EMG",
                "public-release-date": null,
                "study-abstract": "The Third Party Annotation (TPA) assembly was derived from the primary whole genome shotgun (WGS) data set PRJEB33338, and was assembled with metaspades v3.13. This project includes samples from the following biomes: root:Host-associated:Birds:Digestive system:Digestive tube:Cecum.",
                "study-name": "EMG produced TPA metagenomics assembly of PRJEB33338 data set (Metagenomics of chicken cecal contents from fast and slower growing birds).",
                "data-origination": "SUBMITTED"
            },
            "relationships": {
                "analyses": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00006078/analyses?format=api"
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                },
                "publications": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00006078/publications?format=api"
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                },
                "biomes": {
                    "links": {
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                            "type": "biomes",
                            "id": "root:Host-associated:Birds:Digestive system:Digestive tube:Cecum",
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                                "self": "https://www.ebi.ac.uk/metagenomics/api/v1/biomes/root:Host-associated:Birds:Digestive%20system:Digestive%20tube:Cecum?format=api"
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                    ]
                },
                "geocoordinates": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00006078/geocoordinates?format=api"
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                "samples": {
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                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00006078/samples?format=api"
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                },
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            },
            "links": {
                "self": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00006078?format=api"
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        },
        {
            "type": "studies",
            "id": "MGYS00005682",
            "attributes": {
                "samples-count": 1,
                "bioproject": "PRJEB41355",
                "accession": "MGYS00005682",
                "is-private": false,
                "last-update": "2020-12-23T18:09:28",
                "secondary-accession": "ERP125119",
                "centre-name": "EMG",
                "public-release-date": null,
                "study-abstract": "The Third Party Annotation (TPA) assembly was derived from the primary whole genome shotgun (WGS) data set PRJNA193217, and was assembled with metaSPAdes v3.14.1. This project includes samples from the following biomes: root:Host-associated:Birds:Digestive system:Digestive tube:Cecum.",
                "study-name": "EMG produced TPA metagenomics assembly of PRJNA193217 data set (Chicken cecal contents Metagenome).",
                "data-origination": "SUBMITTED"
            },
            "relationships": {
                "analyses": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005682/analyses?format=api"
                    }
                },
                "publications": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005682/publications?format=api"
                    }
                },
                "biomes": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005682/biomes?format=api"
                    },
                    "data": [
                        {
                            "type": "biomes",
                            "id": "root:Host-associated:Birds:Digestive system:Digestive tube:Cecum",
                            "links": {
                                "self": "https://www.ebi.ac.uk/metagenomics/api/v1/biomes/root:Host-associated:Birds:Digestive%20system:Digestive%20tube:Cecum?format=api"
                            }
                        }
                    ]
                },
                "geocoordinates": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005682/geocoordinates?format=api"
                    }
                },
                "samples": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005682/samples?format=api"
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                },
                "downloads": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005682/downloads?format=api"
                    }
                }
            },
            "links": {
                "self": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005682?format=api"
            }
        },
        {
            "type": "studies",
            "id": "MGYS00005680",
            "attributes": {
                "samples-count": 4,
                "bioproject": "PRJEB41442",
                "accession": "MGYS00005680",
                "is-private": false,
                "last-update": "2020-12-23T17:52:23",
                "secondary-accession": "ERP125217",
                "centre-name": "EMG",
                "public-release-date": null,
                "study-abstract": "The Third Party Annotation (TPA) assembly was derived from the primary whole genome shotgun (WGS) data set PRJNA291299, and was assembled with metaSPAdes v3.14.1. This project includes samples from the following biomes: root:Host-associated:Birds:Digestive system:Digestive tube:Cecum.",
                "study-name": "EMG produced TPA metagenomics assembly of PRJNA291299 data set (Caecal microbiome metagenome of laying hens).",
                "data-origination": "SUBMITTED"
            },
            "relationships": {
                "analyses": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005680/analyses?format=api"
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                },
                "publications": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005680/publications?format=api"
                    }
                },
                "biomes": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005680/biomes?format=api"
                    },
                    "data": [
                        {
                            "type": "biomes",
                            "id": "root:Host-associated:Birds:Digestive system:Digestive tube:Cecum",
                            "links": {
                                "self": "https://www.ebi.ac.uk/metagenomics/api/v1/biomes/root:Host-associated:Birds:Digestive%20system:Digestive%20tube:Cecum?format=api"
                            }
                        }
                    ]
                },
                "geocoordinates": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005680/geocoordinates?format=api"
                    }
                },
                "samples": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005680/samples?format=api"
                    }
                },
                "downloads": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005680/downloads?format=api"
                    }
                }
            },
            "links": {
                "self": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005680?format=api"
            }
        },
        {
            "type": "studies",
            "id": "MGYS00005681",
            "attributes": {
                "samples-count": 3,
                "bioproject": "PRJNA291299",
                "accession": "MGYS00005681",
                "is-private": false,
                "last-update": "2020-12-23T16:51:50",
                "secondary-accession": "SRP061731",
                "centre-name": "Institute of Bioscience, Universiti Putra Malaysia",
                "public-release-date": null,
                "study-abstract": "To evaluate the effects of feeding prebiotic, probiotic and synbiotic on the functional potential of caecal microbiome",
                "study-name": "Caecal microbiome metagenome of laying hens",
                "data-origination": "HARVESTED"
            },
            "relationships": {
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                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005681/analyses?format=api"
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                },
                "publications": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005681/publications?format=api"
                    }
                },
                "biomes": {
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                    },
                    "data": [
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                            "type": "biomes",
                            "id": "root:Host-associated:Birds:Digestive system:Digestive tube:Cecum",
                            "links": {
                                "self": "https://www.ebi.ac.uk/metagenomics/api/v1/biomes/root:Host-associated:Birds:Digestive%20system:Digestive%20tube:Cecum?format=api"
                            }
                        }
                    ]
                },
                "geocoordinates": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005681/geocoordinates?format=api"
                    }
                },
                "samples": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005681/samples?format=api"
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                },
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                    }
                }
            },
            "links": {
                "self": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005681?format=api"
            }
        },
        {
            "type": "studies",
            "id": "MGYS00003447",
            "attributes": {
                "samples-count": 16,
                "bioproject": "PRJEB29033",
                "accession": "MGYS00003447",
                "is-private": false,
                "last-update": "2020-11-26T10:00:23",
                "secondary-accession": "ERP111299",
                "centre-name": "Maynooth University",
                "public-release-date": null,
                "study-abstract": "Broiler caecal samples were analysed using metagenomics",
                "study-name": "Broiler Caecal Metagenome",
                "data-origination": "SUBMITTED"
            },
            "relationships": {
                "analyses": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00003447/analyses?format=api"
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                },
                "publications": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00003447/publications?format=api"
                    }
                },
                "biomes": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00003447/biomes?format=api"
                    },
                    "data": [
                        {
                            "type": "biomes",
                            "id": "root:Host-associated:Birds:Digestive system:Digestive tube:Cecum",
                            "links": {
                                "self": "https://www.ebi.ac.uk/metagenomics/api/v1/biomes/root:Host-associated:Birds:Digestive%20system:Digestive%20tube:Cecum?format=api"
                            }
                        }
                    ]
                },
                "geocoordinates": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00003447/geocoordinates?format=api"
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                },
                "samples": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00003447/samples?format=api"
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                },
                "downloads": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00003447/downloads?format=api"
                    }
                }
            },
            "links": {
                "self": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00003447?format=api"
            }
        },
        {
            "type": "studies",
            "id": "MGYS00005631",
            "attributes": {
                "samples-count": 20,
                "bioproject": "PRJEB40874",
                "accession": "MGYS00005631",
                "is-private": false,
                "last-update": "2020-11-04T16:04:48",
                "secondary-accession": "ERP124570",
                "centre-name": "EMG",
                "public-release-date": null,
                "study-abstract": "The Third Party Annotation (TPA) assembly was derived from the primary whole genome shotgun (WGS) data set PRJEB14491, and was assembled with metaSPAdes v3.14.1. This project includes samples from the following biomes: root:Host-associated:Birds:Digestive system:Digestive tube:Cecum.",
                "study-name": "EMG produced TPA metagenomics assembly of PRJEB14491 data set (metagenomic Shotgun analysis of cecum microbiome of poultry).",
                "data-origination": "SUBMITTED"
            },
            "relationships": {
                "analyses": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005631/analyses?format=api"
                    }
                },
                "publications": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005631/publications?format=api"
                    }
                },
                "biomes": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005631/biomes?format=api"
                    },
                    "data": [
                        {
                            "type": "biomes",
                            "id": "root:Host-associated:Birds:Digestive system:Digestive tube:Cecum",
                            "links": {
                                "self": "https://www.ebi.ac.uk/metagenomics/api/v1/biomes/root:Host-associated:Birds:Digestive%20system:Digestive%20tube:Cecum?format=api"
                            }
                        }
                    ]
                },
                "geocoordinates": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005631/geocoordinates?format=api"
                    }
                },
                "samples": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005631/samples?format=api"
                    }
                },
                "downloads": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005631/downloads?format=api"
                    }
                }
            },
            "links": {
                "self": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005631?format=api"
            }
        },
        {
            "type": "studies",
            "id": "MGYS00005610",
            "attributes": {
                "samples-count": 251,
                "bioproject": "PRJEB25776",
                "accession": "MGYS00005610",
                "is-private": false,
                "last-update": "2020-09-23T23:14:55",
                "secondary-accession": "ERP107730",
                "centre-name": "LSHTM",
                "public-release-date": null,
                "study-abstract": "Chickens are a key food source for humans yet their microbiome contains bacteria that can be pathogenic to humans, and indeed potentially to chickens themselves. Campylobacter is present within the chicken gut and is the leading cause of bacterial foodborne gastroenteritis within humans worldwide. Infection can lead to secondary sequelae such as Guillain-Barre syndrome and stunted growth in children from low-resource areas. Despite the global health impact and economic burden of Campylobacter, how and when Campylobacter appears within chickens remains unclear. The lack of day to day microbiome data with replicates, relevant metadata, and a lack of natural infection studies have delayed our understanding of the chicken gut microbiome and Campylobacter. Here, we performed a comprehensive day to day microbiome analysis of the chicken cecum from day 3 to 35 (12 replicates each day; final n = 379). We combined metadata such as chicken weight and feed conversion rates to investigate what the driving forces are for the microbial changes within the chicken gut over time, and how this relates to Campylobacter appearance within a natural habitat setting. We found a rapidly increasing microbial diversity up to day 12 with variation observed both in terms of genera and abundance, before a stabilization of the microbial diversity after day 20. In particular, we identified a shift from competitive to environmental drivers of microbial community from days 12 to 20 creating a window of opportunity whereby Campylobacter can appear. Campylobacter was identified at day 16 which was 1 day after the most substantial changes in metabolic profiles observed. In addition, microbial variation over time is most likely influenced by the diet of the chickens whereby significant shifts in OTU abundances and beta dispersion of samples often corresponded with changes in feed. This study is unique in comparison to the most recent studies as neither sampling was sporadic nor Campylobacter was artificially introduced, thus the experiments were performed in a natural setting. We believe that our findings can be useful for future intervention strategies and help reduce the burden of Campylobacter within the food chain.",
                "study-name": "Comprehensive longitudinal microbiome analysis of the chicken cecum reveals a shift from competitive to environmental drivers and a window of opportunity for Campylobacter",
                "data-origination": "SUBMITTED"
            },
            "relationships": {
                "analyses": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005610/analyses?format=api"
                    }
                },
                "publications": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005610/publications?format=api"
                    }
                },
                "biomes": {
                    "links": {
                        "related": "https://www.ebi.ac.uk/metagenomics/api/v1/studies/MGYS00005610/biomes?format=api"
                    },
                    "data": [
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                            "type": "biomes",
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