{"id":"https://openalex.org/W16223902","doi":null,"title":"Quantification of sleep in dairy cows in three different stages of lactation","display_name":"Quantification of sleep in dairy cows in three different stages of lactation","publication_year":2011,"publication_date":"2011-08-09","ids":{"openalex":"https://openalex.org/W16223902","mag":"16223902"},"language":"en","primary_location":{"id":"pmh:oai:stud.epsilon.slu.se:3108","doi":null,"is_oa":true,"landing_page_url":"https://stud.epsilon.slu.se/3108/","pdf_url":"https://stud.epsilon.slu.se/3108/1/nilsson_e_110809.pdf","source":{"id":"https://openalex.org/S4306401562","display_name":"Epsilon Archive for Student Projects (University of Southampton)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I43439940","host_organization_name":"University of Southampton","host_organization_lineage":["https://openalex.org/I43439940"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"H2"},"volume":null,"type":"dissertation","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://stud.epsilon.slu.se/3108/1/nilsson_e_110809.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5110606200","display_name":"Emma Nilsson","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Emma Nilsson","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5110606200"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":3,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10838","display_name":"Animal Behavior and Welfare Studies","score":0.8964999914169312,"subfield":{"id":"https://openalex.org/subfields/1103","display_name":"Animal Science and Zoology"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},"topics":[{"id":"https://openalex.org/T10838","display_name":"Animal Behavior and Welfare Studies","score":0.8964999914169312,"subfield":{"id":"https://openalex.org/subfields/1103","display_name":"Animal Science and Zoology"},"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/T10985","display_name":"Sleep and Wakefulness Research","score":0.08479999750852585,"subfield":{"id":"https://openalex.org/subfields/2805","display_name":"Cognitive Neuroscience"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T12365","display_name":"Effects of Environmental Stressors on Livestock","score":0.006099999882280827,"subfield":{"id":"https://openalex.org/subfields/1103","display_name":"Animal Science and Zoology"},"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/sleep-duration","display_name":"sleep duration","score":0.527999997138977},{"id":"https://openalex.org/keywords/sleep-stages","display_name":"sleep stages","score":0.7419999837875366},{"id":"https://openalex.org/keywords/rem-sleep","display_name":"REM sleep","score":0.7670000195503235},{"id":"https://openalex.org/keywords/stage-of-lactation","display_name":"lactation stage","score":0.7630000114440918},{"id":"https://openalex.org/keywords/dry-period","display_name":"dry period","score":0.9909999966621399},{"id":"https://openalex.org/keywords/lying-time","display_name":"lying time","score":0.8769999742507935},{"id":"https://openalex.org/keywords/body-temperature","display_name":"body temperature","score":0.8980000019073486},{"id":"https://openalex.org/keywords/heart-rate","display_name":"heart rate","score":0.8830000162124634},{"id":"https://openalex.org/keywords/swedish-red-cattle","display_name":"Swedish Red cattle","score":0.7260000109672546}],"concepts":[{"id":"https://openalex.org/C2776659692","wikidata":"https://www.wikidata.org/wiki/Q719426","display_name":"Lactation","level":3,"score":0.845840573310852},{"id":"https://openalex.org/C2775841894","wikidata":"https://www.wikidata.org/wiki/Q4683692","display_name":"Sleep (system call)","level":2,"score":0.6047042012214661},{"id":"https://openalex.org/C2776482104","wikidata":"https://www.wikidata.org/wiki/Q38829","display_name":"Breed","level":2,"score":0.5129758715629578},{"id":"https://openalex.org/C121446783","wikidata":"https://www.wikidata.org/wiki/Q208353","display_name":"Circadian rhythm","level":2,"score":0.4500647783279419},{"id":"https://openalex.org/C2910364982","wikidata":"https://www.wikidata.org/wiki/Q35831","display_name":"Sleep Stages","level":4,"score":0.4469244182109833},{"id":"https://openalex.org/C140793950","wikidata":"https://www.wikidata.org/wiki/Q168091","display_name":"Animal science","level":1,"score":0.40477466583251953},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.3948967158794403},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.2787395119667053},{"id":"https://openalex.org/C2778205975","wikidata":"https://www.wikidata.org/wiki/Q1754874","display_name":"Polysomnography","level":3,"score":0.26306477189064026},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.2505924701690674},{"id":"https://openalex.org/C2779234561","wikidata":"https://www.wikidata.org/wiki/Q11995","display_name":"Pregnancy","level":2,"score":0.15311524271965027},{"id":"https://openalex.org/C2781326671","wikidata":"https://www.wikidata.org/wiki/Q754424","display_name":"Apnea","level":2,"score":0.1424737274646759},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.0},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:stud.epsilon.slu.se:3108","doi":null,"is_oa":true,"landing_page_url":"https://stud.epsilon.slu.se/3108/","pdf_url":"https://stud.epsilon.slu.se/3108/1/nilsson_e_110809.pdf","source":{"id":"https://openalex.org/S4306401562","display_name":"Epsilon Archive for Student Projects (University of Southampton)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I43439940","host_organization_name":"University of Southampton","host_organization_lineage":["https://openalex.org/I43439940"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"H2"},{"id":"mag:16223902","doi":null,"is_oa":false,"landing_page_url":"https://core.ac.uk/download/pdf/11988046.pdf","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null}],"best_oa_location":{"id":"pmh:oai:stud.epsilon.slu.se:3108","doi":null,"is_oa":true,"landing_page_url":"https://stud.epsilon.slu.se/3108/","pdf_url":"https://stud.epsilon.slu.se/3108/1/nilsson_e_110809.pdf","source":{"id":"https://openalex.org/S4306401562","display_name":"Epsilon Archive for Student Projects (University of Southampton)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I43439940","host_organization_name":"University of Southampton","host_organization_lineage":["https://openalex.org/I43439940"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"H2"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W16223902.pdf","grobid_xml":"https://content.openalex.org/works/W16223902.grobid-xml"},"referenced_works_count":74,"referenced_works":["https://openalex.org/W139460844","https://openalex.org/W1521227715","https://openalex.org/W1559146351","https://openalex.org/W1969640104","https://openalex.org/W1969922147","https://openalex.org/W1970448338","https://openalex.org/W1977229203","https://openalex.org/W1983443530","https://openalex.org/W1986827759","https://openalex.org/W1992926580","https://openalex.org/W1998028409","https://openalex.org/W2004153542","https://openalex.org/W2004385095","https://openalex.org/W2015330290","https://openalex.org/W2015785286","https://openalex.org/W2020128930","https://openalex.org/W2020798317","https://openalex.org/W2021185182","https://openalex.org/W2027207893","https://openalex.org/W2027827674","https://openalex.org/W2028026454","https://openalex.org/W2030439549","https://openalex.org/W2032984110","https://openalex.org/W2033410429","https://openalex.org/W2034884405","https://openalex.org/W2038705474","https://openalex.org/W2039487747","https://openalex.org/W2040089635","https://openalex.org/W2045120449","https://openalex.org/W2048482940","https://openalex.org/W2049445917","https://openalex.org/W2050467552","https://openalex.org/W2051811640","https://openalex.org/W2057681397","https://openalex.org/W2062894728","https://openalex.org/W2063367712","https://openalex.org/W2067654926","https://openalex.org/W2072056773","https://openalex.org/W2073264303","https://openalex.org/W2075712765","https://openalex.org/W2077990548","https://openalex.org/W2082217699","https://openalex.org/W2084451542","https://openalex.org/W2084479116","https://openalex.org/W2089602132","https://openalex.org/W2090838610","https://openalex.org/W2090909556","https://openalex.org/W2094259156","https://openalex.org/W2097080438","https://openalex.org/W2106715395","https://openalex.org/W2128917021","https://openalex.org/W2132919437","https://openalex.org/W2133863375","https://openalex.org/W2134497527","https://openalex.org/W2136609029","https://openalex.org/W2142697379","https://openalex.org/W2143880356","https://openalex.org/W2146413927","https://openalex.org/W2146436639","https://openalex.org/W2151482188","https://openalex.org/W2151881702","https://openalex.org/W2152455956","https://openalex.org/W2154138709","https://openalex.org/W2160779940","https://openalex.org/W2161877501","https://openalex.org/W2162955116","https://openalex.org/W2169983584","https://openalex.org/W2256074757","https://openalex.org/W2278700272","https://openalex.org/W2287835726","https://openalex.org/W2297356459","https://openalex.org/W2420675584","https://openalex.org/W2515856447","https://openalex.org/W3022302886"],"related_works":["https://openalex.org/W198061379","https://openalex.org/W2930123417","https://openalex.org/W2113785418","https://openalex.org/W2798113415","https://openalex.org/W3193705983","https://openalex.org/W173887767","https://openalex.org/W1979384323","https://openalex.org/W2090838610","https://openalex.org/W3180424017","https://openalex.org/W2955397635"],"abstract_inverted_index":{"The":[0,191],"aim":[1],"of":[2,25,45,75,122,145,155,161,203,232],"this":[3],"project":[4],"was":[5,52,85,117,135,149,171,180,206,243,269],"to":[6,19,120,129,153],"quantify":[7],"the":[8,22,37,70,76,130,141,162,174,188,229],"total":[9,23,204,240],"sleep":[10,26,33,46,57,96,104,178,196,199,205,221,249,257],"time":[11,47,179,200,238,242],"in":[12,31,62,69,140,182,201,208,251],"modern":[13],"dairy":[14,73],"cows":[15,74,164,220],"during\\n24-hour":[16],"periods":[17],"and":[18,41,50,58,65,90,108,168,239,258],"investigate":[20],"whether":[21],"amount":[24],"as":[27,29],"well":[28],"time\\nspent":[30],"different":[32,143],"stages":[34,144],"varies":[35],"between":[36,48,56,88,236,248,256],"dry":[38,189],"period,":[39],"early-":[40,183],"peak":[42,209],"lactation.\\nThe":[43],"distribution":[44],"night":[49,226],"day":[51],"also":[53,216],"examined.":[54],"Furthermore,\\ncorrelations":[55],"lying":[59,241],"time,":[60],"fluctuations":[61],"body":[63,106,109,252],"temperature":[64,110],"heart\\nbeat":[66],"were":[67,80,100],"included":[68],"aim.":[71],"Eight":[72],"Swedish":[77],"Red":[78],"breed":[79],"used":[81],"in\\nthis":[82],"study,":[83],"which":[84],"carried":[86],"out":[87],"June":[89],"September":[91],"2010.":[92],"In":[93],"order":[94],"to\\nquantify":[95],"non-invasive":[97],"electrophysiological":[98],"recordings":[99],"performed.\\nSimultaneously":[101],"with":[102,187,228],"collecting":[103],"data,":[105],"position":[107],"were\\nalso":[111],"recorded.":[112],"No":[113],"heart":[114,125,259,266],"rate":[115,267],"data":[116,148,158,170,175],"obtained":[118,181],"due":[119],"difficulties":[121],"maintaining\\nelectrodes":[123],"for":[124],"beat":[126],"measurements":[127,268],"attached":[128],"skin.":[131],"One":[132],"24-hour":[133],"data\\ncollection":[134],"performed":[136],"on":[137],"each":[138],"cow":[139],"three":[142],"lactation.":[146,213],"The\\nelectrophysiological":[147],"visually":[150],"scored":[151],"according":[152],"definitions":[154],"human":[156],"sleep.\\nElectrophysiological":[157],"from":[159,173],"one":[160],"eight":[163],"mainly":[165],"contained":[166],"artefacts":[167],"all\\nher":[169],"excluded":[172],"set.":[176],"Shorter":[177],"and\\npeak":[184],"lactation":[185,210],"compared":[186,227],"period.":[190],"rapid":[192],"eye":[193],"movement":[194],"(REM)":[195],"time\\nand":[197],"REM":[198],"proportion":[202,224],"higher":[207],"compared\\nto":[211],"early":[212],"It":[214],"could":[215],"be":[217,262],"concluded":[218],"that":[219],"during":[222],"larger":[223],"of\\nthe":[225],"day.":[230],"Indications":[231],"a":[233],"possible":[234],"correlation":[235],"total\\nsleep":[237],"found,":[244],"but":[245],"no":[246,265],"relationship":[247],"and\\nfluctuations":[250],"temperature.":[253],"Possible":[254],"correlations":[255],"beat\\ncould":[260],"not":[261,270],"investigated":[263],"since":[264],"obtained.":[271]},"counts_by_year":[{"year":2021,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-10-27T15:51:10.671819","created_date":"2016-06-24T00:00:00"}
