{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,6,25]],"date-time":"2025-06-25T04:12:38Z","timestamp":1750824758246,"version":"3.41.0"},"reference-count":19,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2017,8,11]],"date-time":"2017-08-11T00:00:00Z","timestamp":1502409600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Reprod Domestic Animals"],"published-print":{"date-parts":[[2017,12]]},"abstract":"<jats:title>Contents<\/jats:title><jats:p>A controlled field trial was conducted to assess the potential influence of practitioner inexperience during early pregnancy diagnosis with ultrasound (<jats:styled-content style=\"fixed-case\">PD<\/jats:styled-content>\u2010<jats:styled-content style=\"fixed-case\">US<\/jats:styled-content>) on the risk of pregnancy loss. A veterinarian with more than 10\u00a0years\u2019 experience in<jats:styled-content style=\"fixed-case\">PD<\/jats:styled-content>\u2010<jats:styled-content style=\"fixed-case\">US<\/jats:styled-content>(Vet\u2010A) and a veterinarian with fewer than 12\u00a0months\u2019 experience at the start of the study (Vet\u2010B) visited the same dairy farm once a week for 33 and 26\u00a0weeks, respectively. The two veterinarians did not interact with each other at any time during the study, nor did they know that their data would later be used in this study. Using the same farm scanner, they performed<jats:styled-content style=\"fixed-case\">PD<\/jats:styled-content>\u2010<jats:styled-content style=\"fixed-case\">US<\/jats:styled-content>at 28\u201334\u00a0day after breeding, together diagnosing 915 pregnancies. All cows were re\u2010checked at 49\u201356\u00a0day after artificial insemination, and cows no longer pregnant were recorded as having suffered pregnancy loss. Although Vet\u2010A and Vet\u2010B diagnosed a similar proportion of pregnancies (58.44\u00a0\u00b1\u00a016%<jats:italic>vs<\/jats:italic>56.96\u00a0\u00b1\u00a018%,<jats:italic>p<\/jats:italic>\u00a0&gt;\u00a0.05), the rate of pregnancy loss was significantly higher among cows diagnosed by Vet\u2010B (10.41\u00a0\u00b1\u00a011.2%<jats:italic>vs<\/jats:italic>4.87\u00a0\u00b1\u00a09.0,<jats:italic>p<\/jats:italic>\u00a0=\u00a0.029). In addition, among cows diagnosed by Vet\u2010B, the rate of pregnancy loss was significantly higher among cows diagnosed, while he had fewer than 12\u00a0months\u2019<jats:styled-content style=\"fixed-case\">PD<\/jats:styled-content>\u2010<jats:styled-content style=\"fixed-case\">US<\/jats:styled-content>experience (11.17\u00a0\u00b1\u00a012.14%) than among cows that he diagnosed later (7.14\u00a0\u00b1\u00a011.01%,<jats:italic>p<\/jats:italic>\u00a0=\u00a0.038); in fact, this latter loss rate was comparable to that among cows diagnosed by Vet\u2010A during the same period (3.51\u00a0\u00b1\u00a09.83%,<jats:italic>p<\/jats:italic>\u00a0=\u00a0.620). These results suggest that inexperience with<jats:styled-content style=\"fixed-case\">PD<\/jats:styled-content>\u2010<jats:styled-content style=\"fixed-case\">US<\/jats:styled-content>during the late embryonic period can increase risk of early pregnancy loss, supporting the need for proper training.<\/jats:p>","DOI":"10.1111\/rda.13033","type":"journal-article","created":{"date-parts":[[2017,8,12]],"date-time":"2017-08-12T03:56:41Z","timestamp":1502510201000},"page":"1145-1148","source":"Crossref","is-referenced-by-count":2,"title":["Influence of practitioner expertise during early pregnancy diagnosis on pregnancy loss rate: A controlled, blinded trial"],"prefix":"10.1111","volume":"52","author":[{"given":"R","family":"Patron","sequence":"first","affiliation":[{"name":"Trialvet SL Madrid Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"I","family":"L\u00f3pez\u2010Helguera","sequence":"additional","affiliation":[{"name":"Departament de Ciencia Animal Agrotecnio Universitat de Lleida Lleida Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"F","family":"Sebasti\u00e1n","sequence":"additional","affiliation":[{"name":"Cowvet SL Valencia Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J\u2010L","family":"Pesantez\u2010Pacheco","sequence":"additional","affiliation":[{"name":"Escuela de Medicina Veterinaria y Zootecnia Facultad de Ciencias Agropecuarias Universidad de Cuenca Cuenca Ecuador"},{"name":"Animal Reproduction Department INIA Madrid Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"N","family":"P\u00e9rez\u2010Villalobos","sequence":"additional","affiliation":[{"name":"Trialvet SL Madrid Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J","family":"Vicente Gonz\u00e1lez Mart\u00edn","sequence":"additional","affiliation":[{"name":"Trialvet SL Madrid Spain"},{"name":"Departamento de Medicina y Cirug\u00eda Animal Facultad de Veterinaria (UCM) Madrid Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"O","family":"Fargas","sequence":"additional","affiliation":[{"name":"VAPL SL Barcelona Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9718-0903","authenticated-orcid":false,"given":"S","family":"Astiz","sequence":"additional","affiliation":[{"name":"Animal Reproduction Department INIA Madrid Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2017,8,11]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"crossref","first-page":"973","DOI":"10.2460\/javma.1978.173.08.973","article-title":"Effect of three methods of palpation for pregnancy diagnosis per rectum on embryonic and fetal attrition in cows","volume":"173","author":"Abbitt B.","year":"1978","journal-title":"Journal of the American Veterinary Medical Association"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/0093-691X(94)00060-8"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1136\/vr.134.20.532-a"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1136\/vr.140.11.287"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(06)72378-5"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/0093-691X(87)90057-4"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cvfa.2015.09.006"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0093-691X(01)00595-7"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF02213972"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/0378-4320(92)90085-R"},{"key":"e_1_2_8_12_1","doi-asserted-by":"crossref","first-page":"922","DOI":"10.2460\/javma.1989.194.07.922","article-title":"Fate of conceptus and corpus luteum after induced embryonic loss in heifers","volume":"194","author":"Kastelic J. 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