{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,17]],"date-time":"2026-06-17T02:38:25Z","timestamp":1781663905452,"version":"3.54.5"},"reference-count":31,"publisher":"American Dairy Science Association","issue":"1","license":[{"start":{"date-parts":[[2014,1,1]],"date-time":"2014-01-01T00:00:00Z","timestamp":1388534400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2019,1,14]],"date-time":"2019-01-14T00:00:00Z","timestamp":1547424000000},"content-version":"vor","delay-in-days":1839,"URL":"http:\/\/www.elsevier.com\/open-access\/userlicense\/1.0\/"}],"funder":[{"name":"Kilgore Research Center Competitive Grants Program from the West Texas A&M University"},{"name":"Select Sires Inc."}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Dairy Science"],"published-print":{"date-parts":[[2014,1]]},"DOI":"10.3168\/jds.2013-6827","type":"journal-article","created":{"date-parts":[[2013,11,1]],"date-time":"2013-11-01T06:35:23Z","timestamp":1383287723000},"page":"185-194","source":"Crossref","is-referenced-by-count":19,"title":["Effect of an Ovsynch56 protocol initiated at different intervals after insemination with or without a presynchronizing injection of gonadotropin-releasing hormone on fertility in lactating dairy cows"],"prefix":"10.3168","volume":"97","author":[{"given":"R.G.S.","family":"Bruno","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.G.N.","family":"Moraes","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.A.H.","family":"Hern\u00e1ndez-Rivera","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"K.J.","family":"Lager","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P.R.B.","family":"Silva","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A.L.A.","family":"Scanavez","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"L.G.D.","family":"Mendon\u00e7a","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R.C.","family":"Chebel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T.R.","family":"Bilby","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1747","reference":[{"key":"10.3168\/jds.2013-6827_bib0005","doi-asserted-by":"crossref","first-page":"1036","DOI":"10.1016\/j.theriogenology.2011.05.006","article-title":"Presynchronization with GnRH 7 days prior to resynchronization with CO-Synch did not improve pregnancy rate in lactating dairy cows","volume":"76","author":"Alkar","year":"2011","journal-title":"Theriogenology"},{"key":"10.3168\/jds.2013-6827_bib0010","unstructured":"Allison, P. D. 1999. Logistic Regression Using the SAS System: Theory and Application. SAS Institute Inc., Cary, NC."},{"issue":"Suppl. 1","key":"10.3168\/jds.2013-6827_bib0015","first-page":"64","article-title":"Effect of gonadotropin-releasing hormone or prostaglandin F2\u03b1-based estrus synchronization programs for first or subsequent AI in lactating dairy cows","volume":"95","author":"Bruno","year":"2012","journal-title":"J. Dairy Sci"},{"issue":"Suppl. 1","key":"10.3168\/jds.2013-6827_bib0020","first-page":"86","article-title":"Effect of artificial insemination (AI) protocol on fertilization and embryo quality in high-producing dairy cows","volume":"88","author":"Cerri","year":"2005","journal-title":"J. Dairy Sci"},{"key":"10.3168\/jds.2013-6827_bib0025","doi-asserted-by":"crossref","first-page":"813","DOI":"10.1530\/REP-08-0242","article-title":"Period of dominance of the ovulatory follicle influences embryo quality in lactating dairy cows","volume":"137","author":"Cerri","year":"2009","journal-title":"Reproduction"},{"key":"10.3168\/jds.2013-6827_bib0030","doi-asserted-by":"crossref","first-page":"1389","DOI":"10.1016\/S0093-691X(03)00117-1","article-title":"Effect of resynchronization with GnRH on day 21 after artificial insemination on pregnancy rate and pregnancy loss in lactating dairy cows","volume":"60","author":"Chebel","year":"2003","journal-title":"Theriogenology"},{"key":"10.3168\/jds.2013-6827_bib0035","doi-asserted-by":"crossref","first-page":"4205","DOI":"10.3168\/jds.S0022-0302(06)72466-3","article-title":"Reproduction in dairy cows following progesterone insert presynchronization and resynchronization protocols","volume":"89","author":"Chebel","year":"2006","journal-title":"J. Dairy Sci"},{"key":"10.3168\/jds.2013-6827_bib0040","doi-asserted-by":"crossref","first-page":"1009","DOI":"10.3168\/jds.2012-5892","article-title":"Evaluation of presynchronized resynchronization protocols for lactating dairy cows","volume":"96","author":"Chebel","year":"2013","journal-title":"J. Dairy Sci"},{"key":"10.3168\/jds.2013-6827_bib0045","doi-asserted-by":"crossref","first-page":"1794","DOI":"10.3168\/jds.2011-4650","article-title":"Low progesterone concentration during the development of the first follicular wave reduces pregnancy per insemination of lactating dairy cows","volume":"95","author":"Denicol","year":"2012","journal-title":"J. Dairy Sci"},{"key":"10.3168\/jds.2013-6827_bib0050","doi-asserted-by":"crossref","first-page":"4086","DOI":"10.3168\/jds.2010-3233","article-title":"Resynchronization strategies to improve fertility in lactating dairy cows utilizing a presynchronization injection of GnRH or supplemental progesterone: I. Pregnancy rates and ovarian responses","volume":"93","author":"Dewey","year":"2010","journal-title":"J. Dairy Sci"},{"key":"10.3168\/jds.2013-6827_bib0055","doi-asserted-by":"crossref","first-page":"2695","DOI":"10.3168\/jds.S0022-0302(94)77212-X","article-title":"Principal descriptors of body condition score in Holstein cows","volume":"77","author":"Ferguson","year":"1994","journal-title":"J. Dairy Sci"},{"key":"10.3168\/jds.2013-6827_bib0060","doi-asserted-by":"crossref","first-page":"197","DOI":"10.1016\/S0039-128X(96)00181-X","article-title":"Expression of aromatase in the ovary: Down-regulation of mRNA by the ovulatory luteinizing hormone surge","volume":"62","author":"Fitzpatrick","year":"1997","journal-title":"Steroids"},{"key":"10.3168\/jds.2013-6827_bib0065","doi-asserted-by":"crossref","first-page":"267","DOI":"10.1530\/jrf.0.0340267","article-title":"The relationship between plasma progesterone concentration and conception in post-partum dairy cows maintained on two concentrations of nutrition","volume":"34","author":"Folman","year":"1973","journal-title":"J. Reprod. Fertil"},{"key":"10.3168\/jds.2013-6827_bib0070","doi-asserted-by":"crossref","first-page":"5612","DOI":"10.3168\/jds.2011-5035","article-title":"Effect of presynchronization with human chorionic gonadotropin or gonadotropin-releasing hormone 7 days before resynchronization of ovulation on fertility in lactating dairy cows","volume":"95","author":"Giordano","year":"2012","journal-title":"J. Dairy Sci"},{"key":"10.3168\/jds.2013-6827_bib0075","doi-asserted-by":"crossref","first-page":"457","DOI":"10.1080\/01621459.1958.10501452","article-title":"Nonparametric estimation from incomplete observations","volume":"53","author":"Kaplan","year":"1958","journal-title":"J. Am. Stat. Assoc"},{"key":"10.3168\/jds.2013-6827_bib0080","doi-asserted-by":"crossref","first-page":"2550","DOI":"10.1016\/j.theriogenology.2004.11.003","article-title":"Fertility following fixed-time AI or insemination at observed estrus in Ovsynch and Heatsynch programs in lactating dairy cows","volume":"63","author":"Kasimanickam","year":"2005","journal-title":"Theriogenology"},{"key":"10.3168\/jds.2013-6827_bib0085","series-title":"Statistical Principles of Research Design and Analysis","article-title":"Complete block designs","author":"Kuehl","year":"1994"},{"key":"10.3168\/jds.2013-6827_bib0090","doi-asserted-by":"crossref","first-page":"3788","DOI":"10.3168\/jds.2012-6429","article-title":"Effect of timing of initiation of resynchronization and presynchronization with gonadotropin-releasing hormone on fertility of resynchronized inseminations in lactating dairy cows","volume":"96","author":"Lopes","year":"2013","journal-title":"J. Dairy Sci"},{"key":"10.3168\/jds.2013-6827_bib0095","doi-asserted-by":"crossref","first-page":"1099","DOI":"10.1016\/0093-691X(88)90285-3","article-title":"Detecting estrus in synchronized heifers-using tailpaint and an aerosol raddle","volume":"30","author":"Macmillan","year":"1988","journal-title":"Theriogenology"},{"key":"10.3168\/jds.2013-6827_bib0100","doi-asserted-by":"crossref","first-page":"71","DOI":"10.1016\/S0378-4320(03)00114-3","article-title":"Effects of circulating progesterone and insulin on early embryo development in beef heifers","volume":"79","author":"Mann","year":"2003","journal-title":"Anim. Reprod. Sci"},{"key":"10.3168\/jds.2013-6827_bib0105","doi-asserted-by":"crossref","first-page":"175","DOI":"10.1530\/rep.0.1210175","article-title":"Relationship between maternal endocrine environment, early embryo development and inhibition of the luteolytic mechanism in cows","volume":"121","author":"Mann","year":"2001","journal-title":"Reproduction"},{"key":"10.3168\/jds.2013-6827_bib0110","doi-asserted-by":"crossref","first-page":"1151","DOI":"10.1016\/j.theriogenology.2011.10.021","article-title":"Effects of resynchronization strategies for lactating Holstein cows on pattern of reinsemination, fertility, and economic outcome","volume":"77","author":"Mendon\u00e7a","year":"2012","journal-title":"Theriogenology"},{"key":"10.3168\/jds.2013-6827_bib0115","unstructured":"Minitab Inc. 2000. MINITAB Reference Manual. Release 13.32. Minitab Inc., State College, PA."},{"key":"10.3168\/jds.2013-6827_bib0120","doi-asserted-by":"crossref","first-page":"1568","DOI":"10.2527\/2000.7861568x","article-title":"Effect of day of the estrous cycle at the initiation of a timed artificial insemination protocol on reproductive responses in dairy heifers","volume":"78","author":"Moreira","year":"2000","journal-title":"J. Anim. Sci"},{"key":"10.3168\/jds.2013-6827_bib0125","series-title":"Nutrient Requirements of Dairy Cattle","year":"2001"},{"key":"10.3168\/jds.2013-6827_bib0130","first-page":"473","article-title":"Effect of circulating progesterone on in vitro developmental competence of bovine oocytes","volume":"6","author":"Pfeifer","year":"2009","journal-title":"Anim. Reprod"},{"key":"10.3168\/jds.2013-6827_bib0135","doi-asserted-by":"crossref","first-page":"333","DOI":"10.1530\/REP-10-0375","article-title":"Reduced progesterone concentration during growth of the first follicular wave affects embryo quality but has no effect on embryo survival post transfer in lactating dairy cows","volume":"141","author":"Rivera","year":"2011","journal-title":"Reproduction"},{"key":"10.3168\/jds.2013-6827_bib0140","doi-asserted-by":"crossref","first-page":"367","DOI":"10.1016\/0093-691X(91)90465-P","article-title":"Pregnancy rates in dairy cows following the administration of a GnRH analogue at the time of artificial insemination or at mid-cycle post insemination","volume":"36","author":"Ryan","year":"1991","journal-title":"Theriogenology"},{"key":"10.3168\/jds.2013-6827_bib0145","unstructured":"SAS Institute. 2008. SAS 9.2. Version 3. SAS Institute Inc., Cary, NC."},{"key":"10.3168\/jds.2013-6827_bib0150","doi-asserted-by":"crossref","first-page":"5509","DOI":"10.3168\/jds.2007-0315","article-title":"Effect of prostaglandin F2\u03b1 before resynchronization of ovulation on fertility of lactating dairy cows","volume":"90","author":"Silva","year":"2007","journal-title":"J. Dairy Sci"},{"key":"10.3168\/jds.2013-6827_bib0155","doi-asserted-by":"crossref","first-page":"1067","DOI":"10.1016\/S0093-691X(99)00195-8","article-title":"Synchronization rate, size of the ovulatory follicle, and pregnancy rate after synchronization of ovulation beginning on different days of the estrous cycle in lactating dairy cows","volume":"52","author":"Vasconcelos","year":"1999","journal-title":"Theriogenology"}],"container-title":["Journal of Dairy Science"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0022030213007315?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0022030213007315?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0022030213007315","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,11,8]],"date-time":"2024-11-08T21:17:34Z","timestamp":1731100654000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0022030213007315"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,1]]},"references-count":31,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2014,1]]}},"alternative-id":["S0022030213007315"],"URL":"https:\/\/doi.org\/10.3168\/jds.2013-6827","relation":{},"ISSN":["0022-0302"],"issn-type":[{"value":"0022-0302","type":"print"}],"subject":[],"published":{"date-parts":[[2014,1]]}}}