{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T10:05:22Z","timestamp":1790762722185,"version":"4.1.0"},"reference-count":37,"publisher":"Cambridge University Press (CUP)","license":[{"start":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T00:00:00Z","timestamp":1790726400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Dairy Research"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    This study described milk yield (MY), fat yield (FY), protein yield (PY), somatic cell score (SCS) and lactation persistency in Holstein Friesian cows managed in an intensive indoor system in central Chile. Data from 206 cows (329 lactations; 3,021 test-day records) collected between 2022 and 2026 were analysed using fourth-order Legendre polynomials and linear models to evaluate the effects of parity, calving season and stage of lactation (SL). Multiparous cows showed higher (\n                    <jats:italic>P<\/jats:italic>\n                    \u00a0&lt;\u00a00.05) daily MY than primiparous cows during early lactation (35.4 vs. 30.9\u00a0kg\/day in SL1; 36.1 vs. 33.0\u00a0kg\/day in SL2), although accumulated MY did not differ between parities (9,940 vs. 10,248\u00a0kg for primiparous and multiparous cows, respectively). In contrast, primiparous cows exhibited greater lactation persistency than multiparous cows (\u22120.0378 vs.\u00a0\u2212\u00a00.0514\u00a0kg\/day for primiparous and multiparous cows, respectively), indicating flatter lactation curves. Calving season significantly affected MY, with winter-calving cows producing more milk than summer-calving cows (10,325 vs. 9,862\u00a0kg, for winter- and summer-calving, respectively), particularly during mid- and late-lactation (1.0\u20132.1\u00a0kg\/day in SL2\u2013SL4). However, these differences were not reflected in FY and PY. Across SL, SCS was higher in multiparous than primiparous cows (4.04\u20134.91 vs. 3.02\u20133.58), but was not affected by calving season. These findings highlight the importance of parity and calving season in interpreting milk traits and designing management strategies in intensive dairy systems.\n                  <\/jats:p>","DOI":"10.1017\/s0022029926102660","type":"journal-article","created":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T09:40:29Z","timestamp":1790761229000},"page":"1-9","source":"Crossref","is-referenced-by-count":0,"title":["Milk yield and production traits in one intensive-managed dairy farm located in central Chile"],"prefix":"10.1017","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5912-4524","authenticated-orcid":false,"given":"Felipe","family":"Lembeye","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/04teye511","id-type":"ROR","asserted-by":"publisher"}],"name":"Pontificia Universidad Catolica de Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mario","family":"Duchens","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/047gc3g35","id-type":"ROR","asserted-by":"publisher"}],"name":"Universidad de Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gustavo","family":"Schuenemann","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00rs6vg23","id-type":"ROR","asserted-by":"publisher"}],"name":"The Ohio State University"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2026,9,30]]},"reference":[{"key":"S0022029926102660_ref15","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(07)72619-X"},{"key":"S0022029926102660_ref17","volume-title":"Nutrient Requirements of Dairy Cattle","year":"2021"},{"key":"S0022029926102660_ref13","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(05)72784-3"},{"key":"S0022029926102660_ref19","doi-asserted-by":"publisher","DOI":"10.22358\/jafs\/66012\/2013"},{"key":"S0022029926102660_ref21","first-page":"39","article-title":"Non genetic factors affecting milk production and composition in a dairy herd with two calving seasons in Los Lagos Region, Chile","volume":"67","author":"P\u00e9rez","year":"2007","journal-title":"Agricultura T\u00e9cnica"},{"key":"S0022029926102660_ref23","doi-asserted-by":"publisher","DOI":"10.4067\/S0365-28072007000200005"},{"key":"S0022029926102660_ref30","doi-asserted-by":"publisher","DOI":"10.4081\/ijas.2004.167"},{"key":"S0022029926102660_ref4","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(02)74194-5"},{"key":"S0022029926102660_ref29","first-page":"432","volume-title":"Advanced Mathematics for Engineers and Scientists","author":"Spiegel","year":"1971"},{"key":"S0022029926102660_ref18","unstructured":"ODEPA (2025) Series de tiempos. Available at: https:\/\/aplicativos.odepa.gob.cl\/series-precios\/series-tiempo. (accessed 1 August 2025)."},{"key":"S0022029926102660_ref10","doi-asserted-by":"publisher","DOI":"10.1093\/genetics\/124.4.979"},{"key":"S0022029926102660_ref31","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(05)73055-1"},{"key":"S0022029926102660_ref5","doi-asserted-by":"publisher","DOI":"10.1093\/af\/vfad044"},{"key":"S0022029926102660_ref33","doi-asserted-by":"publisher","DOI":"10.1016\/j.anopes.2023.100040"},{"key":"S0022029926102660_ref12","doi-asserted-by":"publisher","DOI":"10.5187\/jast.2021.e59"},{"key":"S0022029926102660_ref6","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(00)74952-6"},{"key":"S0022029926102660_ref16","doi-asserted-by":"publisher","DOI":"10.3168\/jds.2011-4152"},{"key":"S0022029926102660_ref7","first-page":"97","article-title":"Persistency of lactation yields: A review","volume":"12","author":"Gengler","year":"1996","journal-title":"Proceedings International Workshop on Genetic Improvement of Functional Traits in Cattle Improvement of Functional Traits in Cattle Interbull Bulletin"},{"key":"S0022029926102660_ref27","doi-asserted-by":"publisher","DOI":"10.3168\/jds.2018-15382"},{"key":"S0022029926102660_ref36","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(87)80337-5"},{"key":"S0022029926102660_ref35","doi-asserted-by":"publisher","DOI":"10.56093\/ijans.v89i6.91098"},{"key":"S0022029926102660_ref25","doi-asserted-by":"publisher","DOI":"10.3168\/jds.2018-15040"},{"key":"S0022029926102660_ref28","first-page":"375","article-title":"Characterization of dairy productive systems in the Tenth Region of Chile using multivariate analysis","volume":"62","author":"Smith","year":"2002","journal-title":"Agricultura T\u00e9cnica"},{"key":"S0022029926102660_ref26","doi-asserted-by":"publisher","DOI":"10.1016\/S0301-6226(03)00151-9"},{"key":"S0022029926102660_ref37","first-page":"1401","article-title":"A Research on milk yield, persistency, milk constituents and somatic cell count of Red Holstein cows raised under Mediterranean climatic conditions","volume":"19","author":"Yilmaz","year":"2013","journal-title":"Bulgarian Journal of Agricultural Science"},{"key":"S0022029926102660_ref20","first-page":"15","article-title":"Production systems, technical parameters and quality of bovine milk producers in southern Chile","volume":"38","author":"P\u00e9rez","year":"2011","journal-title":"Ciencia E Investigaci\u00f3n Agraria"},{"key":"S0022029926102660_ref14","doi-asserted-by":"publisher","DOI":"10.1080\/00273171.2020.1830019"},{"key":"S0022029926102660_ref3","doi-asserted-by":"publisher","DOI":"10.1007\/s11250-025-04318-6"},{"key":"S0022029926102660_ref2","doi-asserted-by":"publisher","DOI":"10.1016\/j.animal.2021.100292"},{"key":"S0022029926102660_ref22","doi-asserted-by":"publisher","DOI":"10.5539\/sar.v8n1p11"},{"key":"S0022029926102660_ref11","doi-asserted-by":"publisher","DOI":"10.1080\/00288233.2015.1130724"},{"key":"S0022029926102660_ref1","doi-asserted-by":"publisher","DOI":"10.4206\/ajvs.57.04"},{"key":"S0022029926102660_ref8","doi-asserted-by":"publisher","DOI":"10.29393\/CHJAAS36-17MQCG80017"},{"key":"S0022029926102660_ref24","doi-asserted-by":"publisher","DOI":"10.3168\/jds.2019-17362"},{"key":"S0022029926102660_ref9","doi-asserted-by":"publisher","DOI":"10.3168\/jds.2023-23478"},{"key":"S0022029926102660_ref34","doi-asserted-by":"publisher","DOI":"10.3390\/ani14152245"},{"key":"S0022029926102660_ref32","doi-asserted-by":"publisher","DOI":"10.3389\/fgene.2015.00118"}],"container-title":["Journal of Dairy Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0022029926102660","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T09:40:31Z","timestamp":1790761231000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0022029926102660\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9,30]]},"references-count":37,"alternative-id":["S0022029926102660"],"URL":"https:\/\/doi.org\/10.1017\/s0022029926102660","relation":{},"ISSN":["0022-0299","1469-7629"],"issn-type":[{"value":"0022-0299","type":"print"},{"value":"1469-7629","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,9,30]]}}}