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Abstract

A complex interaction between the developing bovine embryo and the growth potential of the uterine milieu it inhabits results in an embryo capable of developing past the maternal recognition stage and on to a successful pregnancy. Previously, we observed variation in the lengths of embryos...

Author(s)
Shorten, P. R.; Ledgard, A. M.; Donnison, M.; Pfeffer, P. L.; McDonald, R. M.; Berg, D. K.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 1, pp 736-751
Abstract

Embryo transfer entails many procedures and techniques, of which embryo freezing is an important component in bovine embryo transfer. Embryo freezing techniques have been developed over the last 40 years, allowing practical availability, and have become essential for cattle reproduction management...

Author(s)
Dochi, O.
Publisher
Society for Reproduction and Development, Tokyo, Japan
Citation
Journal of Reproduction and Development, 2019, 65, 5, pp 389-396
Abstract

The increasing use of in vitro embryo production (IVP) followed by embryo transfer (ET), alongside with cryopreservation of embryos, has risen concerns regarding the possible altered pregnancy rates, calving or even neonatal mortality. One of the hypotheses for these alterations is the current...

Author(s)
Lopes, J. S.; Alcázar-Triviño, E.; Soriano-Úbeda, C.; Hamdi, M.; Cánovas, S.; Rizos, D.; Coy, P.
Publisher
MDPI AG, Basel, Switzerland
Citation
Animals, 2020, 10, 8,
Abstract

Peroxisome proliferator-activated receptors (PPARs), a nuclear receptors for prostacyclin (PGI2) have been recognized as being essential for early embryo development. The objectives of the present study were to determine if the bovine early- and late-cleaved embryos in different stages of early...

Author(s)
Suwik, K.; Sinderewicz, E.; Boruszewska, D.; Kowalczyk-Zięba, I.; Staszkiewicz-Chodor, J.; Łukaszuk, K.; Wocławek-Potocka, I.
Publisher
MDPI AG, Basel, Switzerland
Citation
Animals, 2020, 10, 12,
Abstract

The objective of these experiments was to determine the effect of L-carnitine during oocyte maturation or embryo culture on embryo development and cryosurvival. For Experiments 1-3, embryos were produced in vitro using abattoir-derived cumulus-oocyte complexes (COCs). At d 7 after insemination, ...

Author(s)
Zolini, A. M.; Carrascal-Triana, E.; King, A. R. de; Hansen, P. J.; Torres, C. A. A.; Block, J.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2019, 133, pp 135-143
Abstract

This work examined the downstream fetal and placental outcomes of introducing a cocktail of uterine-derived growth factors during bovine embryo culture. Abattoir-derived bovine oocytes were matured and fertilized in vitro. On day 4 post-fertilization, ≥8-cell embryos were harvested, pooled and...

Author(s)
Vailes, M. T.; McCoski, S. R.; Wooldridge, L. K.; Reese, S. T.; Pohler, K. G.; Roper, D. A.; Mercadante, V. R.; Ealy, A. D.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2019, 124, pp 1-8
Abstract

Direct transfer (DT) of cryopreserved embryos to recipients facilitates on-farm application. We analyzed a new freezing/thawing (F/T) procedure for in vitro produced (IVP) embryos, integrating: (1) an ethylene-glycol based system; (2) a culture step without protein; and (3) a synthetic protein...

Author(s)
Gómez, E.; Carrocera, S.; Martín, D.; Pérez-Jánez, J. J.; Prendes, J.; Prendes, J. M.; Vázquez, A.; Murillo, A.; Gimeno, I.; Muñoz, M.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2020, 146, pp 39-47
Abstract

Bovine embryo growth involves a complex interaction between the developing embryo and the growth-promoting potential of the uterine environment. We have previously established links between embryonic factors (embryo stage, embryo gene expression), maternal factors (progesterone, body condition...

Author(s)
Shorten, P. R.; Donnison, M.; McDonald, R. M.; Meier, S.; Ledgard, A. M.; Berg, D.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 9, pp 8401-8416
Abstract

The aim of this study was to evaluate the effects of the transfer side, transfer location, cervix transfer score, type and diameter of corpus luteum (CL) during embryo transfer on pregnancy rates in beef heifers. Progesterone-based synchronization and superovulation protocol were applied to...

Author(s)
Alkan, H.; Karaşahin, T.; Dursun, Ş.; Satılmış, F.; Erdem, H.; Güler, M.
Publisher
Wiley, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2020, 55, 4, pp 421-428
Abstract

Objectives were to determine effects of: (1) handling temperament and administration of flunixin meglumine, an inhibitor of prostaglandin F2a (PGF2a) synthesis, given at the time of embryo transfer, on pregnancy rates in beef cattle embryo transfer recipients; (2) handling temperament and flunixin...

Author(s)
Kasimanickam, R. K.; Hall, J. B.; Estill, C. T.; Kastelic, J. P.; Joseph, C.; Aziz, R. L. A.; Nak, D.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2018, 107, pp 70-77

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