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Do high progesterone concentrations decrease pregnancy rates in embryo recipients synchronized with PGF2 alpha and eCG?
(Elsevier B.V., 2004-05-01)
The objective of this study was to evaluate the effects of equine chorionic gonadotropin (eCG) treatment on the number of induced accessory corpora lutea (CL), plasma progesterone concentrations and pregnancy rate in ...
Blastocele fluid from In Vitro and In Vivo produced equine embryos contains nuclear DNA
(Elsevier Science Inc, 2015-02)
Normal mammalian early embryonic development involves apoptosis of blastomeres as a remodeling process during differentiation, starting at the blastocyst stage. Genomic DNA has been recently detected in the blastocele fluid ...
Pregnancy diagnosis in cattle using pregnancy associated glycoprotein concentration in circulation at day 24 of gestation
(Elsevier B.V., 2018-01-15)
Cattle producers are limited to day 28-30 of gestation as the earliest time point for accurate pregnancy diagnosis due to the effectiveness of ultrasound and chemical based methods, including commercially available pregnancy ...
Superovulation, embryo recovery, and pregnancy rates from seasonally anovulatory donor mares treated with recombinant equine FSH (reFSH)
(Elsevier Science Inc., 2020-01)
The effectiveness of different treatments with recombinant equine FSH to stimulate follicular growth, multiple ovulations and embryo production in seasonally anovulatory mares was evaluated. During mid-winter season ...
Factors affecting conception rates following artificial insemination or embryo transfer in lactating holstein cows
(Amer Dairy Science Assoc-adsa, 2014)
Effect of fixed-time embryo transfer on reproductive efficiency in high-producing repeat-breeder Holstein cows
(Amsterdam, 2010)
The aim of the present study was to compare a synchronization of time of ovulation protocol for fixed-timed embryo transfer (FTET) with the usual administration of a single dose of prostaglandin associated with detection ...
Influence of injectable progesterone on the pregnancy rate of heifers receiving bovine embryosInfluência da progesterona injetável na taxa de prenhez de novilhas receptoras de embriões bovinos
(2021-01-01)
Background: In vitro embryo production (IVEP) allows the spread of superior animal genetics, but pregnancy rates show a high variability with this biotechnique. In the initial stage of pregnancy, progesterone plays a ...
Factors affecting conception rates following artificial insemination or embryo transfer in lactating holstein cows
(Amer Dairy Science Assoc-adsa, 2007-11-01)
The objective of this study was to evaluate the factors that may affect conception rates (CR) following artificial insemination (AI) or embryo transfer (ET) in lactating Holstein cows. Estrous cycling cows producing 33.1 ...