Developmental Hurdles That Can Compromise Pregnancy during the First Month of Gestation in Cattle

Several key developmental events are associated with early embryonic pregnancy losses in beef and dairy cows. These developmental problems are observed at a greater frequency in pregnancies generated from in-vitro-produced bovine embryos. This review describes critical problems that arise during ooc...

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Bibliographic Details
Published inAnimals (Basel) Vol. 13; no. 11; p. 1760
Main Authors Speckhart, Savannah L, Oliver, Mary A, Ealy, Alan D
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 25.05.2023
MDPI
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Summary:Several key developmental events are associated with early embryonic pregnancy losses in beef and dairy cows. These developmental problems are observed at a greater frequency in pregnancies generated from in-vitro-produced bovine embryos. This review describes critical problems that arise during oocyte maturation, fertilization, early embryonic development, compaction and blastulation, embryonic cell lineage specification, elongation, gastrulation, and placentation. Additionally, discussed are potential remediation strategies, but unfortunately, corrective actions are not available for several of the problems being discussed. Further research is needed to produce bovine embryos that have a greater likelihood of surviving to term.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ObjectType-Review-1
ISSN:2076-2615
2076-2615
DOI:10.3390/ani13111760