Results 31 to 40 of about 38,689 (208)

Effect of OPU Session Periods on the Efficiency of In Vitro Embryo Production in Elite Korean Native Cow

open access: yesJournal of Animal Reproduction and Biotechnology, 2018
Up-to-date artificial insemination (AI) using frozen sperm consider as the most widely using technology for improvement of Korean Native Cow (Hanwoo) embryo production.
Byung-Hyun Choi   +11 more
doaj   +1 more source

Genomic Variants Associated With Oocyte and Embryo Production in Dairy Gir Cattle [PDF]

open access: yesAnim Genet
ABSTRACT The use of in vitro fertilization protocols associated with genomic selection increases genetic gain in dairy cattle. The aims of this study were to uncover genetic variants in a specific interval on BTA7 and to investigate their effects on the number of oocytes and embryos in dairy Gir.
Rocha R   +6 more
europepmc   +2 more sources

Cryopreservation of equine oocytes: looking into the crystal ball [PDF]

open access: yes, 2020
In vitro embryo production has evolved rapidly in the horse over the past decade, but blastocyst rates from vitrified equine oocytes remain quite poor and further research is needed to warrant application.
Angel Velez, Daniel   +4 more
core   +2 more sources

Study on Ovum-pick up for Improvement of Embryo Transfer Efficiency in Hanwoo Cows

open access: yesJournal of Animal Reproduction and Biotechnology, 2017
Commercial applications of OPU/IVP were to produce embryos and calves from high genetic cows. The aim of this present study was to compare the number of recovered oocytes and cultured in vitro produced embryos from Ovum Pick-up (OPU).
Sang-Rae C   +5 more
doaj   +1 more source

Effects of superstimulation with fsh on follicular population and recovery rate of oocytes in the growing phase of the first and second follicular wave

open access: yesVeterinární Medicína, 2002
Effectiveness of in vitro production of embryos (IVP) is limited among other factors by the recovery rate of oocytes. Gonadotropin superstimulation can improve the recovery rate of oocytes.
S. Čech   +4 more
doaj   +1 more source

#290 : Does Extending the Time Interval Between hCG Trigger and Oocyte Retrieval from 36 to 37 Hours Affect the Rate of Euploid Blastocysts?

open access: yesFertility & Reproduction, 2023
Background and Aims: Data are lacking regarding the optimal time interval between human chorionic gonadotropin (hCG) administration and ovum pick-up (hCG-OPU interval), and its impact on blastocyst euploidy. Our aim was to compare the blastocyst euploidy
Elad Barber   +6 more
doaj   +1 more source

Optimal Ovulation Trigger–Oocyte Pickup Interval in Progestin-Primed Ovarian Stimulation Protocol: A Retrospective Study Using Propensity Score Matching

open access: yesFrontiers in Endocrinology, 2019
Background: To investigate the optimal ovulation trigger–oocyte pickup (OPU) interval of a progestin-primed ovarian stimulation (PPOS) protocol.Method: Patients with normal ovarian reserve in their first PPOS OPU cycle were enrolled in this retrospective
Xi Shen   +11 more
doaj   +1 more source

Cumulative pregnancy rate via multiple fresh or frozen embryo transfers in women with current, resected, or recurred endometrioma

open access: yesTaiwanese Journal of Obstetrics & Gynecology, 2023
Objective: This study aimed to retrospectively analyze the cumulative pregnancy rate (PR) via multiple fresh or frozen embryo transfers (ET) in women with current, resected, or recurred endometrioma.
Haerin Paik   +2 more
doaj   +1 more source

Oocyte yield of nulliparous and pluriparous buf- faloes submitted to synchronization prior to fol- licular aspiration

open access: yesRevista Científica, 2023
This study aimed to analyze the quantity and quality of oocytes obtained from buffaloes submitted to follicular aspiration (OPU) after synchronization of the follicular wave emergency.
Claudio Coutinho Bartolomeu   +6 more
doaj   +1 more source

Ovarian Follicular Dynamics, Ovarian Follicular Growth, Oocyte Yield, Embryo Production and Repeated Oocyte Pick Up in Thai Native Heifers Undergoing Superstimulation [PDF]

open access: yesAsian-Australasian Journal of Animal Sciences, 2013
The objective of this study was to compare the effectiveness of the protocols for superstimulation of follicular growth in Thai native heifers. Heifers (n = 20) were randomly divided into four groups of five heifers/group.
J. Chasombat   +3 more
doaj   +1 more source

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