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This review will examine the pregnancy retention rates of IVP embryos and explore causes for pregnancy failures. Based on work completed over the past 25 yr, only 27% of cattle receiving IVP embryos will produce a live calf. Approximately 60% of these pregnancies fail during the first 6 wk of gestation. When compared with embryos generated by superovulation, pregnancy rates are 10% to 40% lower for cattle carrying IVP embryos, exemplifying that IVP embryos are consistently less competent than in vivo-generated embryos. Several abnormalities have been observed in the morphology of IVP conceptuses. After transfer, IVP embryos are less likely to undergo conceptus elongation, have reduced embryonic disk diameter, and have compromised yolk sac development. Marginal binucleate cell development, cotyledon development, and placental vascularization have also been documented, and these abnormalities are associated with altered fetal growth trajectories. Additionally, in vitro culture conditions increase the risk of large offspring syndrome. Further work is needed to decipher how the embryo culture environment alters post-transfer embryo development and survival. The risk of these neonatal disorders has been reduced by the use of serum-free synthetic oviductal fluid media formations and culture in low oxygen tension. However, alterations are still evident in IVP oocyte and embryo transcript abundances, timing of embryonic cleavage events and blastulation, incidence of aneuploidy, and embryonic methylation status. The inclusion of oviductal and uterine-derived embryokines in culture media is being examined as one way to improve the competency of IVP embryos. To conclude, the evidence presented herein clearly shows that bovine IVP systems still must be refined to make it an economical technology in cattle production systems. However, the current shortcomings do not negate its current value for certain embryo production needs and for investigating early embryonic development in cattle.<\/jats:p>","DOI":"10.1093\/jas\/skz116","type":"journal-article","created":{"date-parts":[[2019,4,10]],"date-time":"2019-04-10T02:10:21Z","timestamp":1554862221000},"page":"2555-2568","source":"Crossref","is-referenced-by-count":184,"title":["BOARD INVITED REVIEW: Post-transfer consequences of in vitro-produced embryos in cattle"],"prefix":"10.1093","volume":"97","author":[{"given":"Alan D","family":"Ealy","sequence":"first","affiliation":[{"name":"Department of Animal & Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lydia K","family":"Wooldridge","sequence":"first","affiliation":[{"name":"Department of Animal & Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sarah R","family":"McCoski","sequence":"first","affiliation":[{"name":"Department of Animal & Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2019,4,10]]},"reference":[{"key":"2020040920052684800_CIT0001","doi-asserted-by":"publisher","first-page":"624","DOI":"10.1017\/S0967199415000672","article-title":"In vitro maturation alters gene expression in bovine oocytes","volume":"24","author":"Adona","year":"2016","journal-title":"Zygote"},{"key":"2020040920052684800_CIT0002","doi-asserted-by":"publisher","first-page":"147","DOI":"10.1016\/S0093-691X(98)00121-6","article-title":"Transfer of fresh and cryopreserved IVP bovine embryos: normal calving, birth weight and gestation lengths","volume":"50","author":"Agca","year":"1998","journal-title":"Theriogenology"},{"key":"2020040920052684800_CIT0003","doi-asserted-by":"publisher","first-page":"907","DOI":"10.1071\/RD12092","article-title":"Development of bovine embryos derived from reproductive techniques","volume":"25","author":"Alberto","year":"2013","journal-title":"Reprod. 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