{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T21:10:19Z","timestamp":1790629819807,"version":"4.1.0"},"reference-count":55,"publisher":"Public Library of Science (PLoS)","issue":"11","license":[{"start":{"date-parts":[[2018,11,14]],"date-time":"2018-11-14T00:00:00Z","timestamp":1542153600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100005416","name":"Norges Forskningsr\u00e5d","doi-asserted-by":"publisher","award":["207804"],"award-info":[{"award-number":["207804"]}],"id":[{"id":"10.13039\/501100005416","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"DOI":"10.1371\/journal.pone.0206128","type":"journal-article","created":{"date-parts":[[2018,11,14]],"date-time":"2018-11-14T13:32:42Z","timestamp":1542202362000},"page":"e0206128","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":32,"title":["Sow communication with piglets while being active is a good predictor of maternal skills, piglet survival and litter quality in three different breeds of domestic pigs (Sus scrofa domesticus)"],"prefix":"10.1371","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2823-6387","authenticated-orcid":true,"given":"Marko","family":"Ocepek","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Inger Lise","family":"Andersen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2018,11,14]]},"reference":[{"key":"ref1","volume":"xii","author":"TH Clutton-Brock","year":"1991"},{"issue":"3","key":"ref2","doi-asserted-by":"crossref","first-page":"231","DOI":"10.1023\/A:1025610130282","article-title":"Nesting and fitness: lifetime reproductive success in house mice bidirectionally selected for thermoregulatory nest-building behavior","volume":"27","author":"A Bult","year":"1997","journal-title":"Behav Genet"},{"issue":"3","key":"ref3","doi-asserted-by":"crossref","first-page":"127","DOI":"10.1016\/S0376-6357(01)00174-7","article-title":"Effects of litter size on maternal care, body weight and infant development in golden hamsters (Mesocricetus auratus)","volume":"55","author":"RF Guerra","year":"2001","journal-title":"Behav Processes"},{"issue":"1","key":"ref4","doi-asserted-by":"crossref","first-page":"270","DOI":"10.1016\/j.applanim.2008.01.018","article-title":"Periparturient nest building: Implications for parturition, kit survival, maternal stress and behaviour in farmed mink (Mustela vison)","volume":"114","author":"J Malmkvist","year":"2008","journal-title":"Applied Animal Behaviour Science"},{"issue":"2","key":"ref5","doi-asserted-by":"crossref","first-page":"131","DOI":"10.1016\/0168-1591(86)90105-X","article-title":"Observations on the maternal behaviour of free-ranging domestic pigs","volume":"16","author":"P Jensen","year":"1986","journal-title":"Applied Animal Behaviour Science"},{"issue":"962","key":"ref6","doi-asserted-by":"crossref","first-page":"499","DOI":"10.1086\/282929","article-title":"The Optimal Balance between Size and Number of Offspring","volume":"108","author":"CC Smith","year":"1974","journal-title":"The American Naturalist"},{"issue":"12","key":"ref7","first-page":"41","article-title":"Effect of litter size upon milk yield and litter weight gains in rats","volume":"30","author":"P Kumaresan","year":"1966","journal-title":"Revue de tuberculose et de pneumologie"},{"issue":"2","key":"ref8","doi-asserted-by":"crossref","first-page":"302","DOI":"10.1111\/j.1474-919X.1947.tb04155.x","article-title":"The Significance of Clutch-size","volume":"89","author":"D Lack","year":"1947","journal-title":"Ibis"},{"issue":"2","key":"ref9","doi-asserted-by":"crossref","first-page":"351","DOI":"10.1006\/anbe.1993.1040","article-title":"Nest building in domestic sows: the role of external stimuli","volume":"45","author":"P Jensen","year":"1993","journal-title":"Animal Behaviour"},{"key":"ref10","article-title":"Can we improve maternal care in sows? Maternal behavioral traits important for piglet survival in loose-housed sow herds1","author":"M Ocepek","year":"2017","journal-title":"Journal of Animal Science"},{"issue":"2","key":"ref11","doi-asserted-by":"crossref","first-page":"131","DOI":"10.1016\/S0168-1591(99)00002-7","article-title":"Influence of environmental stimuli on nest building and farrowing behaviour in domestic sows","volume":"63","author":"K Thodberg","year":"1999","journal-title":"Applied Animal Behaviour Science"},{"issue":"3","key":"ref12","doi-asserted-by":"crossref","first-page":"229","DOI":"10.1016\/j.applanim.2004.11.015","article-title":"Crushing of piglets by the mother sow (Sus scrofa)\u2014purely accidental or a poor mother?","volume":"93","author":"IL Andersen","year":"2005","journal-title":"Applied Animal Behaviour Science"},{"issue":"1","key":"ref13","doi-asserted-by":"crossref","first-page":"59","DOI":"10.1016\/j.applanim.2006.06.001","article-title":"Preweaning mortality in loose-housed lactating sows: Behavioral and performance differences between sows who crush or do not crush piglets","volume":"105","author":"AK Johnson","year":"2007","journal-title":"Applied Animal Behaviour Science"},{"key":"ref14","doi-asserted-by":"crossref","first-page":"31","DOI":"10.1016\/j.applanim.2014.08.011","article-title":"Prepartum nest-building has an impact on postpartum nursing performance and maternal behaviour in early lactating sows","volume":"160","author":"J Yun","year":"2014","journal-title":"Applied Animal Behaviour Science"},{"issue":"2","key":"ref15","doi-asserted-by":"crossref","first-page":"145","DOI":"10.1016\/0168-1591(94)90154-6","article-title":"Postpartum development of the mother-young relationship in goats","volume":"42","author":"A Bordi","year":"1994","journal-title":"Applied Animal Behaviour Science"},{"issue":"1","key":"ref16","doi-asserted-by":"crossref","first-page":"33","DOI":"10.1016\/j.applanim.2011.03.010","article-title":"Breed differences in the expression of maternal care at parturition persist throughout the lactation period in sheep","volume":"132","author":"HE Pickup","year":"2011","journal-title":"Applied Animal Behaviour Science"},{"key":"ref17","doi-asserted-by":"crossref","first-page":"50","DOI":"10.1016\/j.applanim.2014.12.003","article-title":"The effect of nursing on the cow\u2013calf bond","volume":"163","author":"JF Johnsen","year":"2015","journal-title":"Applied Animal Behaviour Science"},{"issue":"3","key":"ref18","doi-asserted-by":"crossref","first-page":"332","DOI":"10.1016\/j.mambio.2011.01.010","article-title":"Behaviour of European wild boar (Sus scrofa) in connection with farrowing in an enclosure","volume":"76","author":"A Andersson","year":"2011","journal-title":"Mammalian Biology\u2014Zeitschrift f\u00fcr S\u00e4ugetierkunde"},{"issue":"Supplement C","key":"ref19","doi-asserted-by":"crossref","first-page":"29","DOI":"10.1016\/j.applanim.2017.03.010","article-title":"What makes a good mother? Maternal behavioural traits important for piglet survival","volume":"193","author":"M Ocepek","year":"2017","journal-title":"Applied Animal Behaviour Science"},{"key":"ref20","volume":"ix","author":"J Maynard Smith","year":"2003"},{"issue":"3","key":"ref21","doi-asserted-by":"crossref","first-page":"346","DOI":"10.1016\/j.applanim.2008.04.011","article-title":"Carefulness and flexibility of lying down behaviour in sows during 24h post-partum in relation to piglet position","volume":"114","author":"Z Pokorn\u00e1","year":"2008","journal-title":"Applied Animal Behaviour Science"},{"issue":"3","key":"ref22","doi-asserted-by":"crossref","first-page":"121","DOI":"10.1016\/j.applanim.2011.06.015","article-title":"Can sow pre-lying communication or good piglet condition prevent piglets from getting crushed?","volume":"134","author":"M Meli\u0161ov\u00e1","year":"2011","journal-title":"Applied Animal Behaviour Science"},{"issue":"3","key":"ref23","doi-asserted-by":"crossref","first-page":"181","DOI":"10.1016\/j.applanim.2008.12.005","article-title":"Influence of straw length, sow behaviour and room temperature on the incidence of dangerous situations for piglets in a loose farrowing system","volume":"117","author":"M Burri","year":"2009","journal-title":"Applied Animal Behaviour Science"},{"issue":"2","key":"ref24","doi-asserted-by":"crossref","first-page":"147","DOI":"10.1016\/S0301-6226(99)00153-0","article-title":"Sow factors affecting voluntary feed intake during lactation","volume":"64","author":"JJ Eissen","year":"2000","journal-title":"Livestock Production Science"},{"issue":"1","key":"ref25","first-page":"216","article-title":"Maternal behaviour and performance in first-parity outdoor sows","volume":"116","author":"A Wallenbeck","journal-title":"Livestock Science"},{"issue":"8","key":"ref26","doi-asserted-by":"crossref","first-page":"3550","DOI":"10.2527\/jas.2016-0386","article-title":"Can a super sow be a robust sow? Consequences of litter investment in purebred and crossbred sows of different parities1","volume":"94","author":"M Ocepek","year":"2016","journal-title":"Journal of Animal Science"},{"issue":"8","key":"ref27","doi-asserted-by":"crossref","first-page":"2421","DOI":"10.2527\/2004.8282421x","article-title":"The physical size of gestating sows","volume":"82","author":"JJ McGlone","year":"2004","journal-title":"J Anim Sci"},{"issue":"2","key":"ref28","first-page":"272","article-title":"Relationship between size and age of modern hyper-prolific crossbred sows","volume":"141","author":"VA Moustsen","journal-title":"Livestock Science"},{"issue":"1","key":"ref29","doi-asserted-by":"crossref","first-page":"64","DOI":"10.1016\/j.applanim.2005.09.007","article-title":"Positive handling in late pregnancy and the consequences for maternal behaviour and production in sows","volume":"99","author":"IL Andersen","year":"2006","journal-title":"Applied Animal Behaviour Science"},{"issue":"6","key":"ref30","doi-asserted-by":"crossref","first-page":"1159","DOI":"10.1007\/s00265-010-1128-4","article-title":"Maternal investment, sibling competition, and offspring survival with increasing litter size and parity in pigs (Sus scrofa)","volume":"65","author":"IL Andersen","year":"2011","journal-title":"Behavioral ecology and sociobiology"},{"issue":"1","key":"ref31","first-page":"165","article-title":"Body reserve mobilization during lactation in first parity sows and its effect on second litter size","volume":"132","author":"AC Schenkel","journal-title":"Livestock Science"},{"issue":"3","key":"ref32","doi-asserted-by":"crossref","first-page":"250","DOI":"10.1016\/j.livsci.2012.07.015","article-title":"Ad libitum versus step-up feeding during late lactation: The effect on feed consumption, body composition and production performance in dry fed loose housed sows","volume":"149","author":"SL Thingnes","journal-title":"Livestock Science"},{"issue":"1","key":"ref33","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1017\/S1751731111001170","article-title":"Heritability of shoulder ulcers and genetic correlations with mean piglet weight and sow body condition","volume":"6","author":"H Lundgren","year":"2012","journal-title":"Animal: an international journal of animal bioscience"},{"key":"ref34","article-title":"SAS 9.4 graph template language: user&apos;s guide","year":"2014"},{"issue":"Supplement C","key":"ref35","doi-asserted-by":"crossref","first-page":"7","DOI":"10.1016\/j.applanim.2017.03.008","article-title":"Trade-offs between litter size and offspring fitness in domestic pigs subjected to different genetic selection pressures","volume":"193","author":"M Ocepek","year":"2017","journal-title":"Applied Animal Behaviour Science"},{"issue":"1","key":"ref36","doi-asserted-by":"crossref","first-page":"53","DOI":"10.1016\/0168-1591(90)90007-Z","article-title":"The influence of straw, cloth tassel, or both on the prepartum behavior of sows","volume":"27","author":"TM Widowski","year":"1990","journal-title":"Applied Animal Behaviour Science"},{"issue":"1","key":"ref37","doi-asserted-by":"crossref","first-page":"78","DOI":"10.1016\/j.yhbeh.2007.03.022","article-title":"Maternal behavior in pigs","volume":"52","author":"B Algers","year":"2007","journal-title":"Horm Behav"},{"issue":"2","key":"ref38","doi-asserted-by":"crossref","first-page":"139","DOI":"10.1016\/S0378-4320(98)00090-6","article-title":"The effect of environment on plasma cortisol and \u03b2-endorphin in the parturient pig and the involvement of endogenous opioids","volume":"52","author":"S Jarvis","year":"1998","journal-title":"Animal Reproduction Science"},{"issue":"6","key":"ref39","doi-asserted-by":"crossref","first-page":"773","DOI":"10.1016\/j.theriogenology.2007.12.007","article-title":"Investigating the behavioural and physiological indicators of neonatal survival in pigs","volume":"69","author":"EM Baxter","year":"2008","journal-title":"Theriogenology"},{"issue":"1\u20132","key":"ref40","doi-asserted-by":"crossref","first-page":"85","DOI":"10.1016\/j.anireprosci.2009.12.009","article-title":"Environmental and sow-related factors affecting the duration of farrowing","volume":"119","author":"C Oliviero","year":"2010","journal-title":"Anim Reprod Sci"},{"issue":"2","key":"ref41","doi-asserted-by":"crossref","first-page":"149","DOI":"10.1016\/0168-1591(96)01042-8","article-title":"Sow body movements that crush piglets: a comparison between two types of farrowing accommodation","volume":"49","author":"DM Weary","year":"1996","journal-title":"Applied Animal Behaviour Science"},{"key":"ref42","article-title":"Resource allocation theory applied to farm animal production","author":"WM Rauw","year":"2009"},{"issue":"5","key":"ref43","doi-asserted-by":"crossref","first-page":"1223","DOI":"10.2527\/1997.7551223x","article-title":"The role of nursing frequency in milk production in domestic pigs","volume":"75","author":"M Spinka","year":"1997","journal-title":"J Anim Sci"},{"issue":"7","key":"ref44","doi-asserted-by":"crossref","first-page":"1033","DOI":"10.1017\/S175173110700016X","article-title":"Variability of colostrum yield and colostrum intake in pigs","volume":"1","author":"N Devillers","year":"2007","journal-title":"Animal: an international journal of animal bioscience"},{"key":"ref45","article-title":"The evolution of life histories: theory and analysis","volume":"xii","author":"DA Roff","year":"1992"},{"key":"ref46","volume":"xii","author":"SC Stearns","year":"1992"},{"issue":"3","key":"ref47","doi-asserted-by":"crossref","first-page":"393","DOI":"10.1111\/j.1365-2435.2008.01408.x","article-title":"Measuring senescence in wild animal populations: towards a longitudinal approach","volume":"22","author":"DH Nussey","year":"2008","journal-title":"Functional Ecology"},{"issue":"4","key":"ref48","doi-asserted-by":"crossref","first-page":"772","DOI":"10.1111\/jeb.12350","article-title":"Early reproductive investment, senescence and lifetime reproductive success in female Asian elephants","volume":"27","author":"AD Hayward","year":"2014","journal-title":"J Evol Biol"},{"issue":"2","key":"ref49","doi-asserted-by":"crossref","first-page":"167","DOI":"10.1016\/0301-6226(79)90018-6","article-title":"Sow culling: Reasons for and effect on productivity","volume":"6","author":"J Dagorn","year":"1979","journal-title":"Livestock Production Science"},{"issue":"2","key":"ref50","doi-asserted-by":"crossref","first-page":"179","DOI":"10.1016\/0301-6226(79)90019-8","article-title":"Reproductive lifetime of sows in relation to economy of production","volume":"6","author":"Y Kroes","journal-title":"Livestock Production Science"},{"issue":"5","key":"ref51","doi-asserted-by":"crossref","first-page":"508","DOI":"10.2307\/2390047","article-title":"Resource Allocation: Exploring Connections between Foraging and Life History","volume":"6","author":"CL Boggs","year":"1992","journal-title":"Functional Ecology"},{"issue":"6","key":"ref52","doi-asserted-by":"crossref","first-page":"1008","DOI":"10.1093\/beheco\/ari087","article-title":"Stress, resource allocation, and mortality","volume":"16","author":"JM McNamara","year":"2005","journal-title":"Behavioral Ecology"},{"issue":"1\u20136","key":"ref53","doi-asserted-by":"crossref","first-page":"161","DOI":"10.1111\/j.1439-0388.1993.tb00728.x","article-title":"Quantitative genetics and evolution: Is our understanding of genetics sufficient to explain evolution?","volume":"110","author":"RG Beilharz","year":"1993","journal-title":"Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie"},{"issue":"1","key":"ref54","doi-asserted-by":"crossref","first-page":"249","DOI":"10.1093\/icb\/14.1.249","article-title":"Parent-Offspring Conflict","volume":"14","author":"RL Trivers","year":"1974","journal-title":"American Zoologist"},{"issue":"1","key":"ref55","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1086\/285784","article-title":"Signaling of Need between Parents and Young: Parent-Offspring Conflict and Sibling Rivalry","volume":"146","author":"HCJ Godfray","year":"1995","journal-title":"The American Naturalist"}],"container-title":["PLOS ONE"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/dx.plos.org\/10.1371\/journal.pone.0206128","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,5,8]],"date-time":"2020-05-08T22:51:49Z","timestamp":1588978309000},"score":1,"resource":{"primary":{"URL":"https:\/\/dx.plos.org\/10.1371\/journal.pone.0206128"}},"subtitle":[],"editor":[{"given":"Cristina","family":"\u00d3vilo","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"editor"}]}],"short-title":[],"issued":{"date-parts":[[2018,11,14]]},"references-count":55,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2018,11,14]]}},"URL":"https:\/\/doi.org\/10.1371\/journal.pone.0206128","relation":{},"ISSN":["1932-6203"],"issn-type":[{"value":"1932-6203","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,11,14]]}}}