{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,29]],"date-time":"2026-05-29T15:07:38Z","timestamp":1780067258092,"version":"3.54.0"},"reference-count":33,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2026,5,29]],"date-time":"2026-05-29T00:00:00Z","timestamp":1780012800000},"content-version":"vor","delay-in-days":148,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100005668","name":"Funda\u00e7\u00e3o de Apoio \u00e0 Pesquisa do Distrito Federal","doi-asserted-by":"publisher","award":["1556\/2017"],"award-info":[{"award-number":["1556\/2017"]}],"id":[{"id":"10.13039\/501100005668","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002322","name":"Coordena\u00e7\u00e3o de Aperfei\u00e7oamento de Pessoal de N\u00edvel Superior","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100002322","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Veterinary Medicine International"],"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:p>\n                    Accurate estrus detection in grazing crossbred dairy cows (Zebu\u2009\u00d7\u2009Taurine) remains challenging in Brazil, and automated activity monitoring (AAM) systems may be a viable alternative. This study evaluated the effects of management and environmental factors on AAM performance for estrus detection in grazing Girolando cows. Nonpregnant 5\/8 Gir\u2009\u00d7\u2009Holstein cows (\n                    <jats:italic>n<\/jats:italic>\n                    \u2009=\u200925) were monitored during both dry and rainy seasons. During the dry season, cows were managed in semiconfinement with corn silage supplementation. In the rainy season, they grazed\n                    <jats:italic>Panicum maximum<\/jats:italic>\n                    cv. Momba\u00e7a pastures with or without eucalyptus trees. Each cow wore an AAM collar (CowMed, Brazil), and after individual baseline calibration, cows followed a timed artificial insemination (TAI) protocol. A statistical model included season, location, parity, and detection method (AAM, visual observation [VO], adhesive patches [APs]) as fixed effects. Cow and cow\u2009\u00d7\u2009season interaction were random effects. Multiparous cows had higher estrus detection probabilities (97%) compared to primiparous cows (85%), regardless of method, location, or season. AAM detection probability was higher during the rainy season (98%) than during the dry season (73%). For AP, the detection probability was 80% in the rainy season and 97% in the dry season. VO detection remained stable at 92% in the dry season and 95% in the rainy season. Based on corpus luteum (CL) presence, AAM sensitivity and accuracy were 85% and 75%, respectively, while specificity was 33%. Parity and seasonal management significantly influenced AAM performance. The generally low specificity across detection methods highlights the need for improved algorithms and integrated estrus detection strategies in grazing systems.\n                  <\/jats:p>","DOI":"10.1155\/vmi\/8201912","type":"journal-article","created":{"date-parts":[[2026,5,29]],"date-time":"2026-05-29T14:58:03Z","timestamp":1780066683000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Parity and Season Affect the Performance of an Automated Activity Monitoring System for Estrus Detection in Grazing Girolando Cows"],"prefix":"10.1155","volume":"2026","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7114-0479","authenticated-orcid":false,"given":"Sara Adna Santos De","family":"Oliveira","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8172-8735","authenticated-orcid":false,"given":"Ricardo Alamino","family":"Figueiredo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3742-2368","authenticated-orcid":false,"given":"Jo\u00e3o Henrique Moreira","family":"Viana","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1116-9931","authenticated-orcid":false,"given":"Livia Loiola Dos Santos","family":"F\u00e9res","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7566-2859","authenticated-orcid":false,"given":"Luiz Fernando Rodrigues","family":"F\u00e9res","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6118-7962","authenticated-orcid":false,"given":"Ricarda Maria Dos","family":"Santos","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8551-0146","authenticated-orcid":false,"given":"Carlos Frederico","family":"Martins","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9042-8550","authenticated-orcid":false,"given":"Isabel Cristina","family":"Ferreira","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,5,29]]},"reference":[{"key":"e_1_2_12_1_2","doi-asserted-by":"publisher","DOI":"10.1111\/rda.13214"},{"key":"e_1_2_12_2_2","first-page":"28","article-title":"Tecnologia De Precision Como Herramienta Para Incrementar La Eficiencia Reproductive De Vacs Lecheras Em Pastoreo","volume":"5","author":"Chanis E. Q.","year":"2023","journal-title":"Revista Investigaciones Agropecu\u00e1rias"},{"key":"e_1_2_12_3_2","doi-asserted-by":"publisher","DOI":"10.3168\/jds.2012-6107"},{"key":"e_1_2_12_4_2","doi-asserted-by":"publisher","DOI":"10.21451\/1984-3143-AR999"},{"key":"e_1_2_12_5_2","doi-asserted-by":"publisher","DOI":"10.1590\/1984-3143-AR2023-0067"},{"key":"e_1_2_12_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.livsci.2018.06.019"},{"key":"e_1_2_12_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.theriogenology.2019.02.038"},{"key":"e_1_2_12_8_2","unstructured":"FigueiredoR. A. 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