{"id":"https://openalex.org/W2162118790","doi":"https://doi.org/10.1017/s0003356100039210","title":"The length of gestation period of Ayrshire cows when mated with bulls of other breeds","display_name":"The length of gestation period of Ayrshire cows when mated with bulls of other breeds","publication_year":1977,"publication_date":"1977-02-01","ids":{"openalex":"https://openalex.org/W2162118790","doi":"https://doi.org/10.1017/s0003356100039210","mag":"2162118790"},"language":"en","primary_location":{"id":"doi:10.1017/s0003356100039210","doi":"https://doi.org/10.1017/s0003356100039210","is_oa":false,"landing_page_url":"https://doi.org/10.1017/s0003356100039210","pdf_url":null,"source":{"id":"https://openalex.org/S202917008","display_name":"Animal Science","issn_l":"1357-7298","issn":["1357-7298","1748-748X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":"https://openalex.org/P4310311721","host_organization_name":"Cambridge University Press","host_organization_lineage":["https://openalex.org/P4310311721","https://openalex.org/P4310311702"],"host_organization_lineage_names":["Cambridge University Press","University of Cambridge"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Animal Science","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5110342954","display_name":"R. Laird","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"R. Laird","raw_affiliation_strings":["The West of Scotland Agricultural College, Auchincruive, Ayr KA6 5HW"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"The West of Scotland Agricultural College, Auchincruive, Ayr KA6 5HW","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5110046517","display_name":"Edward A. Hunter","orcid":"https://orcid.org/0009-0002-0870-9746","observed_orcids":["https://orcid.org/0009-0002-0870-9746"]},"institutions":[{"id":"https://openalex.org/I98677209","display_name":"University of Edinburgh","ror":"https://ror.org/01nrxwf90","country_code":"GB","type":"education","lineage":["https://openalex.org/I98677209"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"E. A. Hunter","raw_affiliation_strings":["Agricultural Research Council Unit of Statistics, Edinburgh University, May field Road, Edinburgh EH9 3JZ"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Agricultural Research Council Unit of Statistics, Edinburgh University, May field Road, Edinburgh EH9 3JZ","institution_ids":["https://openalex.org/I98677209"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.18604437,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"24","issue":"1","first_page":"63","last_page":"67"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10594","display_name":"Genetic and phenotypic traits in livestock","score":0.5654000043869019,"subfield":{"id":"https://openalex.org/subfields/1311","display_name":"Genetics"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},"topics":[{"id":"https://openalex.org/T10594","display_name":"Genetic and phenotypic traits in livestock","score":0.5654000043869019,"subfield":{"id":"https://openalex.org/subfields/1311","display_name":"Genetics"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10584","display_name":"Reproductive Physiology in Livestock","score":0.43380001187324524,"subfield":{"id":"https://openalex.org/subfields/1102","display_name":"Agronomy and Crop Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T14499","display_name":"Livestock Farming and Management","score":0.00019999999494757503,"subfield":{"id":"https://openalex.org/subfields/1102","display_name":"Agronomy and Crop Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/gestation-length","display_name":"gestation length","score":0.9850000143051147},{"id":"https://openalex.org/keywords/ayrshire-cattle","display_name":"Ayrshire cattle","score":0.9190000295639038},{"id":"https://openalex.org/keywords/crossbreeding","display_name":"crossbreeding","score":0.8690000176429749},{"id":"https://openalex.org/keywords/sire-breed-effects","display_name":"sire breed effects","score":0.8679999709129333},{"id":"https://openalex.org/keywords/heritability","display_name":"heritability","score":0.6809999942779541},{"id":"https://openalex.org/keywords/artificial-insemination","display_name":"artificial insemination","score":0.6650000214576721},{"id":"https://openalex.org/keywords/beef-bulls","display_name":"beef bulls","score":0.593999981880188},{"id":"https://openalex.org/keywords/calving","display_name":"calving","score":0.5109999775886536}],"concepts":[{"id":"https://openalex.org/C2776482104","wikidata":"https://www.wikidata.org/wiki/Q38829","display_name":"Breed","level":2,"score":0.735308051109314},{"id":"https://openalex.org/C140793950","wikidata":"https://www.wikidata.org/wiki/Q168091","display_name":"Animal science","level":1,"score":0.6934500336647034},{"id":"https://openalex.org/C2779984200","wikidata":"https://www.wikidata.org/wiki/Q1724379","display_name":"Shorthorn","level":3,"score":0.6813961863517761},{"id":"https://openalex.org/C46973012","wikidata":"https://www.wikidata.org/wiki/Q28627","display_name":"Gestation","level":3,"score":0.652446448802948},{"id":"https://openalex.org/C2778610407","wikidata":"https://www.wikidata.org/wiki/Q207122","display_name":"Artificial insemination","level":3,"score":0.6420413255691528},{"id":"https://openalex.org/C2777005246","wikidata":"https://www.wikidata.org/wiki/Q1379223","display_name":"Insemination","level":3,"score":0.6362012624740601},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.6240863800048828},{"id":"https://openalex.org/C161890455","wikidata":"https://www.wikidata.org/wiki/Q1503548","display_name":"Heritability","level":2,"score":0.6154050230979919},{"id":"https://openalex.org/C2778741295","wikidata":"https://www.wikidata.org/wiki/Q1490716","display_name":"Gestation period","level":4,"score":0.5863167643547058},{"id":"https://openalex.org/C173419221","wikidata":"https://www.wikidata.org/wiki/Q4390467","display_name":"Crossbreed","level":2,"score":0.5013196468353271},{"id":"https://openalex.org/C194775826","wikidata":"https://www.wikidata.org/wiki/Q209542","display_name":"Herd","level":2,"score":0.43149203062057495},{"id":"https://openalex.org/C2779234561","wikidata":"https://www.wikidata.org/wiki/Q11995","display_name":"Pregnancy","level":2,"score":0.20118305087089539},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.056131571531295776}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1017/s0003356100039210","doi":"https://doi.org/10.1017/s0003356100039210","is_oa":false,"landing_page_url":"https://doi.org/10.1017/s0003356100039210","pdf_url":null,"source":{"id":"https://openalex.org/S202917008","display_name":"Animal Science","issn_l":"1357-7298","issn":["1357-7298","1748-748X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":"https://openalex.org/P4310311721","host_organization_name":"Cambridge University Press","host_organization_lineage":["https://openalex.org/P4310311721","https://openalex.org/P4310311702"],"host_organization_lineage_names":["Cambridge University Press","University of Cambridge"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Animal Science","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.991100013256073,"id":"https://metadata.un.org/sdg/2","display_name":"Zero hunger"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W1579821623","https://openalex.org/W1969123618","https://openalex.org/W2042520343","https://openalex.org/W2057244880","https://openalex.org/W2093393790","https://openalex.org/W2145922106","https://openalex.org/W2170483159","https://openalex.org/W2386656191","https://openalex.org/W2800437431","https://openalex.org/W4242686418"],"related_works":["https://openalex.org/W1969123618","https://openalex.org/W2053879683","https://openalex.org/W2564086516","https://openalex.org/W7047711162","https://openalex.org/W393740055","https://openalex.org/W6945423697","https://openalex.org/W1991229355","https://openalex.org/W2793067650","https://openalex.org/W3160435241","https://openalex.org/W2803055892"],"abstract_inverted_index":{"SUMMARY":[0],"Least":[1],"squares":[2],"analyses":[3],"were":[4],"undertaken":[5],"on":[6],"1519":[7],"gestation":[8,56,75],"lengths":[9,76],"of":[10,31,51,55,77,92],"cows":[11],"mated":[12],"to":[13,42,60],"Beef":[14],"Shorthorn,":[15],"Hereford,":[16],"Charolais,":[17],"German":[18],"Simmental":[19],"or":[20],"British":[21],"Friesian":[22],"bulls.":[23],"Gestation":[24],"length":[25,57],"was":[26,58],"influenced":[27],"largely":[28],"by":[29],"breed":[30],"sireand":[32],"byindividual":[33],"sires":[34],"within":[35],"breeds.":[36],"Approximately":[37],"100":[38],"calvings":[39],"are":[40],"required":[41],"give":[43],"a":[44,48],"mean":[45,74],"value":[46],"with":[47],"standard":[49],"error":[50],"0\u00b750":[52],"day.":[53],"Heritability":[54],"estimated":[59],"be":[61],"0\u00b724\u00b10\u00b705.":[62],"It":[63],"is":[64],"recommended":[65],"that":[66,81],"Artificial":[67],"Insemination":[68],"organizations":[69],"survey":[70],"and":[71,80],"publish":[72],"the":[73,90],"their":[78],"bulls":[79],"dairy":[82],"farmers":[83],"modify,":[84],"where":[85],"necessary,":[86],"pre-partum":[87],"feeding":[88],"in":[89],"light":[91],"this":[93],"information.":[94]},"counts_by_year":[],"updated_date":"2026-10-16T09:59:22.235173","created_date":"2016-06-24T00:00:00"}
