{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,27]],"date-time":"2026-10-27T18:11:27Z","timestamp":1793124687858,"version":"4.5.0"},"reference-count":38,"publisher":"Public Library of Science (PLoS)","issue":"4","license":[{"start":{"date-parts":[[2013,4,26]],"date-time":"2013-04-26T00:00:00Z","timestamp":1366934400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"DOI":"10.1371\/journal.pone.0062993","type":"journal-article","created":{"date-parts":[[2013,4,26]],"date-time":"2013-04-26T21:01:36Z","timestamp":1367010096000},"page":"e62993","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":26,"title":["Using Hormones to Manage Dairy Cow Fertility: The Clinical and Ethical Beliefs of Veterinary Practitioners"],"prefix":"10.1371","volume":"8","author":[{"given":"Helen M.","family":"Higgins","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eamonn","family":"Ferguson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert F.","family":"Smith","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martin J.","family":"Green","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2013,4,26]]},"reference":[{"key":"ref1","unstructured":"Rollin BE (2006) An introduction to veterinary medical ethics: theory and cases. Hoboken, NJ: Wiley-Blackwell."},{"key":"ref2","unstructured":"Thompson PB (2007) Food biotechnology in ethical perspective. Berlin: Springer."},{"key":"ref3","unstructured":"Legood G (2000) An introduction to veterinary ethics. London: Continuum."},{"key":"ref4","doi-asserted-by":"crossref","first-page":"1254","DOI":"10.3168\/jds.S0022-0302(06)72194-4","article-title":"Major advances associated with reproduction in dairy cattle","volume":"89","author":"K Moore","year":"2006","journal-title":"J Dairy Sci"},{"key":"ref5","doi-asserted-by":"crossref","first-page":"487","DOI":"10.1017\/S1357729800051845","article-title":"Declining fertility in dairy cattle: changes in traditional and endocrine parameters of fertility","volume":"70","author":"MD Royal","year":"2000","journal-title":"Animal Science"},{"key":"ref6","doi-asserted-by":"crossref","first-page":"563","DOI":"10.1016\/S0093-691X(02)01240-2","article-title":"Dairy cattle production in Europe","volume":"59","author":"JAM van Arendonk","year":"2003","journal-title":"Theriogenology"},{"key":"ref7","doi-asserted-by":"crossref","first-page":"1104","DOI":"10.1017\/S175173110800236X","article-title":"Why is it getting more difficult to successfully artificially inseminate dairy cows?","volume":"2","author":"H Dobson","year":"2008","journal-title":"Animal"},{"key":"ref8","first-page":"163","article-title":"Culling and wastage in dairy herds: an update on incidence and economic impact in dairy herds in the UK","volume":"18","author":"PG Orpin","year":"2010","journal-title":"Cattle Pract"},{"key":"ref9","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1016\/0378-4320(93)90105-Z","article-title":"New clinical uses of GnRH and its analogues in cattle","volume":"33","author":"WW Thatcher","year":"1993","journal-title":"Anim Reprod Sci"},{"key":"ref10","unstructured":"Johnson R, Hanrahan CE (2010) The U.S.-EU beef hormone dispute. Congressional Research Service Report for Congress. Available: http:\/\/www.nationalaglawcenter.org\/assets\/crs\/R40449.pdf<\/ext-link>. Accessed 30 November 2012<\/comment>."},{"key":"ref11","unstructured":"Veterinary Medicines Directorate (2011) Controls of veterinary medicines. Available: http:\/\/www.vmd.defra.gov.uk\/pdf\/vmgn\/VMGNote01.pdf<\/ext-link>. Accessed 30 November 2012<\/comment>."},{"key":"ref12","unstructured":"Directive 2001\/82\/EC of the European parliament and of the council (2001) The community code relating to veterinary medicinal products. Available: http:\/\/ec.europa.eu\/health\/files\/eudralex\/vol-5\/dir_2001_82_cons2009\/dir_2001_82_cons2009_en.pdf<\/ext-link>. Accessed 30 November 2012<\/comment>."},{"key":"ref13","unstructured":"Veterinary Medicines Directorate (2012) The work of the VMD. Available: http:\/\/www.vmd.defra.gov.uk\/pdf\/leaflet_workVMD.pdf<\/ext-link>. Accessed 30 November 2012<\/comment>."},{"key":"ref14","unstructured":"The Veterinary Medicines Regulations (2011) No.2159. Available: http:\/\/www.legislation.gov.uk\/uksi\/2011\/2159\/pdfs\/uksi_20112159_en.pdf<\/ext-link>. Accessed 30 November 2012<\/comment>."},{"key":"ref15","unstructured":"Veterinary Medicines Directorate (2009) How to determine withdrawal periods. Available: http:\/\/www.vmd.defra.gov.uk\/pdf\/leaflet_withdrawalperiod.pdf<\/ext-link>. Accessed 30 November 2012<\/comment>."},{"key":"ref16","unstructured":"Veterinary Medicines Directorate (2009) Avoiding veterinary residues in food\u2013 maintaining consumer confidence. Available: http:\/\/www.vmd.defra.gov.uk\/pdf\/leaflet_residues.pdf<\/ext-link>. Accessed 30 November 2012<\/comment>."},{"key":"ref17","doi-asserted-by":"crossref","first-page":"640","DOI":"10.1136\/vr.e4195","article-title":"Suspected adverse reaction surveillance scheme: suspected adverse events, 2011","volume":"170","author":"F Dyer","year":"2012","journal-title":"Vet Rec"},{"key":"ref18","unstructured":"R Development Core Team (2011) R: A language and environment for statistical computing. R foundation for statistical computing, Vienna, Austria. Available: http:\/\/www.R-project.org\/<\/ext-link>. Accessed 4 April 2013<\/comment>."},{"key":"ref19","unstructured":"Kalton G (1987) Introduction to survey sampling. Thousand Oaks, CA: Sage Publications."},{"key":"ref20","doi-asserted-by":"crossref","unstructured":"Agresti A (2002) Categorical data analysis. New York: Wiley-Interscience.","DOI":"10.1002\/0471249688"},{"key":"ref21","doi-asserted-by":"crossref","first-page":"245","DOI":"10.1207\/s15327906mbr0102_10","article-title":"The scree test for the number of factors","volume":"1","author":"RB Cattell","year":"1966","journal-title":"Multivariate Behav Res"},{"key":"ref22","unstructured":"Nunnally JC (1978) Psychometric theory. New York: McGraw-Hill."},{"key":"ref23","doi-asserted-by":"crossref","unstructured":"Thompson B (2004) Exploratory and confirmatory factor analysis: understanding concepts and applications. Washington, DC: American Psychological Association.","DOI":"10.1037\/10694-000"},{"key":"ref24","doi-asserted-by":"crossref","unstructured":"Kim J, Mueller CW (1978) Factor Analysis: Statistical methods and practical issues. Thousand Oaks, CA: Sage Publications.","DOI":"10.4135\/9781412984256"},{"key":"ref25","doi-asserted-by":"crossref","first-page":"187","DOI":"10.1007\/BF02289233","article-title":"The varimax criterion for analytic rotation in factor analysis","volume":"23","author":"HK Kaiser","year":"1958","journal-title":"Psychometrika"},{"key":"ref26","doi-asserted-by":"crossref","first-page":"65","DOI":"10.1111\/j.2044-8317.1964.tb00244.x","article-title":"Promax: A quick method for rotation to oblique simple structure","volume":"17","author":"AE Hendrickson","year":"1964","journal-title":"Br J Math Stat Psychol"},{"key":"ref27","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1080\/10705519909540118","article-title":"Cutoff criteria for fit indexes in covariance structure analysis: conventional criteria versus new alternatives","volume":"6","author":"L Hu","year":"1999","journal-title":"Struct Equ Modeling"},{"key":"ref28","unstructured":"Kline P (1994) An easy guide to factor analysis. London: Routledge."},{"key":"ref29","unstructured":"Rasbash J, Charlton C, Browne WJ, Healy M, Cameron B (2011) MLwiN version 2.24. Centre for multilevel modelling, University of Bristol."},{"key":"ref30","doi-asserted-by":"crossref","unstructured":"Goldstein H (2010) Multilevel statistical models. Hoboken, NJ: Wiley-Blackwell.","DOI":"10.1002\/9780470973394"},{"key":"ref31","unstructured":"RCVS (2012) Guide to Profesisonal Conduct. Available: http:\/\/www.rcvs.org.uk\/advice-and-guidance\/code-of-professional-conduct-for-veterinary-surgeons\/#declaration<\/ext-link>. Accessed 30 November 2012<\/comment>."},{"key":"ref32","doi-asserted-by":"crossref","unstructured":"Green MJ, editor (2012) Dairy Herd Health. Wallingford, UK: CABI Publishers.","DOI":"10.1079\/9781845939977.0000"},{"key":"ref33","doi-asserted-by":"crossref","first-page":"643","DOI":"10.1016\/S0140-6736(07)61321-X","article-title":"Experts disagree over NICE\u2019s approach for assessing drugs","volume":"370","author":"R Hoey","year":"2007","journal-title":"Lancet"},{"key":"ref34","doi-asserted-by":"crossref","first-page":"180","DOI":"10.1017\/S0266462311000043","article-title":"Bridging the gap between methods research and the needs of policy makers: A review of the research priorities of the National Institute for Health and Clinical Excellence","volume":"27","author":"L Longworth","year":"2011","journal-title":"Int J Technol Assess Health Care"},{"key":"ref35","unstructured":"Veterinary Medicines Directorate (2011) Guidance for retailers. Available: http:\/\/www.vmd.defra.gov.uk\/pdf\/vmgn\/VMGNote03.pdf<\/ext-link>. Accessed 30 November 2012<\/comment>."},{"key":"ref36","unstructured":"RCVS (2012) Code of profesisonal conduct for veterinary surgeons. Available:http:\/\/www.rcvs.org.uk\/advice-and-guidance\/code-of-professional-conduct-for-veterinary-surgeons\/#declaration<\/ext-link>. Accessed 30 November 2012."},{"key":"ref37","doi-asserted-by":"crossref","first-page":"198","DOI":"10.1111\/j.1467-9566.2007.00544.x","article-title":"Trusting blindly can be the biggest risk of all: organised resistance to childhood vaccination in the UK","volume":"29","author":"P Hobson-West","year":"2007","journal-title":"Sociol Health Illn"},{"key":"ref38","unstructured":"Foresight (2011) The future of food and farming executive summary. The Government Office for Science, London. Available: http:\/\/www.bis.gov.uk\/assets\/foresight\/docs\/food-and-farming\/11-547-future-of-food-and-farming-summary<\/ext-link>. Accessed 30 November 2012<\/comment>."}],"container-title":["PLoS ONE"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/dx.plos.org\/10.1371\/journal.pone.0062993","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,5,9]],"date-time":"2020-05-09T17:46:08Z","timestamp":1589046368000},"score":1,"resource":{"primary":{"URL":"https:\/\/dx.plos.org\/10.1371\/journal.pone.0062993"}},"subtitle":[],"editor":[{"given":"Bernhard","family":"Kaltenboeck","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"editor"}]}],"short-title":[],"issued":{"date-parts":[[2013,4,26]]},"references-count":38,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2013,4,26]]}},"URL":"https:\/\/doi.org\/10.1371\/journal.pone.0062993","relation":{},"ISSN":["1932-6203"],"issn-type":[{"value":"1932-6203","type":"electronic"}],"subject":[],"published":{"date-parts":[[2013,4,26]]}}}