{"corpus_id":85864090,"paper_sha":"4794b40536b0430ae67df00d2d14f80c512c663f","doi":"10.3382/PS.0570038","arxiv_id":null,"pmid":null,"pmcid":null,"mag_id":2141890559,"dblp_id":null,"acl_id":null,"title":"Effect of Age of Parents and Hatching Egg Weight on Broiler Chick Mortality","year":1978,"publication_date":null,"venue":"","journal":{"name":"Poultry Science","pages":"38-44","volume":"57"},"journal_issn":null,"journal_title":null,"publication_types":[],"pubmed_pub_types":null,"s2_fields_of_study":["Agricultural and Food Sciences","Biology"],"reference_count":23,"citation_count":112,"influential_citation_count":6,"is_open_access":false,"arxiv_categories":null,"arxiv_license":null,"arxiv_journal_ref":null,"mesh_headings":null,"chemicals":null,"comments_corrections":null,"source_flags":1,"s2_open_access_pdf_url":null,"s2_open_access_landing_url":null,"s2_open_access_license":null,"s2_open_access_status":null,"pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"Abstract A total of 7400 mixed-sex broilers was used in two experiments to determine the effect of breeder age and hatching egg weight on chick mortality and weight. In each experiment, 925 chicks were housed after hatching from either 29-week-old breeder hen eggs weighing either 47—54 or 57—62 grams or 58-week-old breeder hen eggs weighing either 57—62 or 67—74 grams. Higher mortality occurred when chicks were hatched from 29-week-old breeder hen eggs as compared to eggs from 58-week-old breeders. Also, higher mortality occurred when chicks were hatched from eggs weighing 47—54 grams compared to either 57—62 or 67—74 gram hatching eggs. Larger market broiler weights were found when chicks were hatched from either 57—62 or 67—74 gram eggs compared to chicks hatched from 47—54 gram eggs. No significant differences in market body weights due to age of parents were found when egg weights were comparable.","claims":[{"public_id":"cl_9c29926ae6684e1314698a3e95611eef","status":"active","text":"Chicks hatched from 29-week-old breeder hen eggs had higher mortality than chicks from 58-week-old breeder hen eggs.","confidence":0.98,"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_9c29926ae6684e1314698a3e95611eef"},{"public_id":"cl_af3cb589d33631f1dd49894634c8d303","status":"active","text":"Chicks hatched from 47–54 gram eggs had higher mortality than chicks hatched from 57–62 gram or 67–74 gram eggs.","confidence":0.98,"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_af3cb589d33631f1dd49894634c8d303"},{"public_id":"cl_a64a5a4c1f94a7aac295bf4d7dc3a3af","status":"active","text":"Market broiler weights were greater for chicks hatched from 57–62 gram or 67–74 gram eggs than for chicks hatched from 47–54 gram eggs.","confidence":0.97,"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_a64a5a4c1f94a7aac295bf4d7dc3a3af"},{"public_id":"cl_6d5b483f75751b2d18b7a9f9500efb8b","status":"active","text":"No significant differences in market body weights were found between parent age groups when egg weights were comparable.","confidence":0.93,"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_6d5b483f75751b2d18b7a9f9500efb8b"}],"concepts":[{"public_id":"co_33c0b5630c937dc5dfd3d85df0db5813","status":"active","name":"broiler chicks","description":"Young chickens raised for meat production and used as the experimental subjects in the study.","types":["animal"],"aliases":["broilers","mixed-sex broilers"],"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_33c0b5630c937dc5dfd3d85df0db5813"},{"public_id":"co_3c9a6b365d68fd2ebd76f9dacef2de35","status":"active","name":"market broiler weight","description":"The body weight of broilers at market age.","types":["outcome"],"aliases":["market body weights","market weights"],"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous 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