AI Article Synopsis
Article Abstract
The aim of this study was to assess the effect of insemination timing on pregnancy rates in red deer (Cervus elaphus) when using sex-sorted sperm samples. Semen was collected by electroejaculation from 8 mature stags and processed to obtain: Conventional samples, following standard freezing procedures for commercial purposes; Control sorted samples, diluted and handled as per sorted samples but without being submitted to the sorter passage; and Y Sex Sorted (YSS) samples. Hinds were synchronized via intravaginal CIDR (Controlled Internal Drug Release) placement and given eCG (Folligon PMSG Serum Gonadotrophin) on day 12, upon CIDR removal. They were then inseminated with one of each sperm treatment, at the following post-eCG intervals: I_1, 55:01-55:30 h; I_2, 55:31-56:00 h; I_3, 56:01-56:30 h; or, I_4, 56:31-57:00 h. Pregnancy rates were assessed at parturition. Average pregnancy rates were highest (P < 0.05) for Conventional samples (77.6%), but similar between YSS (49.8%) and Control sorted (51.3%) samples. However, when insemination interval was taken into account, pregnancy rates within the YSS group, pregnancy rates were 80 and 83.1% for I_1 and I_2, respectively were obtained. Notably, these rates were similar (P > 0.05) to the average pregnancy rates obtained with Conventional samples (77.6%). As expected, YSS sperm yielded 94% male offspring contrasting with the 57% males obtained with Conventional and Control sorted samples. Our findings support the importance of developing specific insemination timing protocols to improve pregnancy rates when using frozen-thawed sex-sorted sperm. These findings provide the foundation for further investigations in order to determine why the YSS sperm are able to fertilize the oocyte in a shorter period of time than the conventional samples.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.theriogenology.2018.03.005 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Relationship of lupus nephritis and pregnancy: A narrative review.
World J Nephrol
December 2024
Department of Histopathology, Sindh Institute of Urology and Transplantation, Karachi 74200, Sindh, Pakistan.
Pregnancy in women with lupus, particularly those with lupus nephritis (LN), carries an increased risk of adverse outcomes. Women with active LN at the time of conception are at a high risk of poor maternal and fetal outcomes. Recent studies indicate that even in the presence of quiescent disease, factors such as hypertension and positive lupus anticoagulant are predictors of worse pregnancy outcomes.
View Article and Find Full Text PDFThe embryo stage at fresh ET does not affect the cumulative live birth rate in women with a thin endometrium: a retrospective matched-controlled cohort study.
Front Endocrinol (Lausanne)
December 2024
Reproductive Center of Integrated Medicine, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China.
Background: The blastocyst-stage embryo has been considered more advantageous for increasing the cumulative live birth rate (CLBR) at fresh embryo transfer (ET) compared to the cleavage-stage embryo. However, it remains uncertain whether this advantage extends to specialized subpopulations, such as women with thin endometrium (TE), who are characteristic of impaired endometrial receptivity. Thus, this study aims to evaluate the difference in the CLBR between cleavage-stage and blastocyst-stage embryos at fresh ET specifically in women with TE.
View Article and Find Full Text PDFCOVID-19 in pregnancy: Perinatal outcomes and complications.
World J Virol
December 2024
Department of Obstetrics and Gynecology, University General Hospital of Patras, Patras 26504, Greece.
Background: The risk of severe coronavirus disease 2019 (COVID-19) in pregnant women is elevated.
Aim: To examine the outcomes of pregnant women with COVID-19 and report perinatal outcomes and complications, while providing a brief review of current literature.
Methods: The study included pregnant women presenting from April 2020 to February 2022 to the emergency department (ED) of a tertiary hospital.
Ambulatory care utilization in the first 24 months' postpartum by rurality and pregnancy-related conditions: A prospective cohort study from Maine.
J Rural Health
January 2025
Muskie School of Public Service, University of Southern Maine, Portland, Maine, USA.
Purpose: To estimate the rate of ambulatory care use among postpartum persons by rurality of residence and pregnancy-related conditions.
Methods: We used Maine Health Data Organization's All Payer Claims Data for persons who delivered between 2007 and 2019 (N = 121,905). We estimated rates of ambulatory care (nonemergency department outpatient health care) utilization during the first 24 months' postpartum by level of rurality (urban, large rural, small rural, and isolated rural) and by pregnancy-related conditions (prenatal depression, hypertensive disorders of pregnancy, and gestational diabetes).
Evaluation of maternal and fetal outcomes in pregnancies with maternal solitary kidney: A case-control study from a tertiary center.
J Pediatr Urol
December 2024
Department of Obstetrics and Gynecology, Ministry of Health, Ankara City Hospital, University of Health Sciences, Ankara, Turkey.
Introduction: There exists a prevailing concern regarding the heightened susceptibility of women with a solitary kidney to unfavorable consequences during pregnancy. Irrespective of the underlying etiology, individuals with a solitary kidney are advised to have regular annual screenings for blood pressure and urinalysis due to their increased susceptibility to developing proteinuria, hypertension, and renal failure.
Objective: To investigate the risk of adverse pregnancy outcomes in women with a maternal solitary kidney by comparing maternal and fetal outcomes to those of healthy pregnant women.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!