Results 41 to 50 of about 25,545 (268)

Expression profiles of genes regulating dairy cow fertility: recent findings, ongoing activities and future possibilities [PDF]

, 2008
Subfertility has negative effects for dairy farm profitability, animal welfare and sustainability of animal production. Increasing herd sizes and economic pressures restrict the amount of time that farmers can spend on counteractive management Genetic ...
Beerda, B., Pas, M.F.W., te, Veerkamp, R.F., Wit, A.A.C., de, Wyszynska-Koko, J.   +4 more
core   +2 more sources

Obstetrical and Neonatal Outcomes of 3,028 Singletons Born After Advanced ART Techniques: Ejaculated Sperm Intracytoplasmic Sperm Injection, Artificial Oocyte Activation, in Vitro Maturation and Testicular Sperm Extraction

Fertility & Reproduction, 2021
Background: To evaluate obstetrical and neonatal outcomes of singletons conceived after advanced assisted reproductive technology (ART) techniques: conventional IVF pregnancies (C-IVF), ejaculated sperm intracytoplasmic sperm injection (ICSI), assisted oocyte activation (AOA), in vitro maturation (IVM), and testicular sperm extraction (TESE). Methods:
Hiromitsu Hattori, Yuko Atsumi, Yukiko Nakajo, Nobuya Aono, Masae Koizumi, Mayumi Toya, Hideki Igarashi, Koichi Kyono   +7 more
openaire   +2 more sources

The Effect of Omega-3 on In Vitro Maturation of Mouse Oocytes at the Stage of Germinal Vesicle

Majallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Qum, 2020
Background and Objectives: Studies have shown that fatty acids affect maturation of oocytes, however, studies carried out on the effect of omega-3 on in vitro maturation of oocytes, are limited.
Masume Ghorbani, Ramezan Khanbabaee, Mehrdad Shriati, Mohammad Amin Edalatmanesh   +3 more
doaj  

Current state and future possibilities of ovarian tissue transplantation

Reproductive Medicine and Biology, 2019
Background As a result of recent developments in cancer treatment, cancer survivorship and survivors' quality of life have been emphasized. Although ovarian tissue cryopreservation (OTC) is an experimental technique, it would be the sole technique for ...
Seido Takae, Nao Suzuki
doaj   +1 more source

Raman micro-spectroscopy can be used to investigate the developmental stage of the mouse oocyte.

PLoS ONE, 2013
In recent years, the uptake of assisted reproductive techniques such as in vitro fertilisation has risen exponentially. However, there is much that is still not fully understood about the biochemical modifications that take place during the development ...
Bryony Davidson, Alison A Murray, Alistair Elfick, Norah Spears   +3 more
doaj   +1 more source

Current approaches for assisted oocyte maturation in camels

Journal of Animal Reproduction and Biotechnology, 2021
Camel (camelus dromedarius) is a unique large mammalian species that can survive harsh environmental conditions and produce milk, meat, and wool. Camel reproduction is inferior when compared to other farm animal species such as cattle and sheep.
Islam M. Saadeldin, Jongki Cho
doaj   +1 more source

Microsensors and image processing for single oocyte qualification: toward multiparametric determination of the best time for fertilization [PDF]

, 2013
International audienceDuring intracytoplasmic sperm injection (ICSI) attempts, oocytes reaching metaphase II are microinjected. A morphological examination under a microscope is the usual method for determining oocyte maturity.
Amiot, Caroline, Ivascu, I., Pazart, Lionel, Pieralli, Christian, Roux, Christophe, Wacogne, Bruno, Zeggari, Rabah   +6 more
core   +3 more sources

The invasive and new non-invasive methods of mammalian oocyte and embryo quality assessment: a review

Veterinární Medicína, 2012
The quality of oocytes-embryos can be determined by several techniques, including morphological, molecular, cellular and biochemical ones. The morphological methods of female gamete or embryo quality assessment often use thе following in vitro ...
D. Bukowska, B. Kempisty, H. Piotrowska, R. Walczak, P. Sniadek, J. Dziuban, K.P. Brussow, J.M. Jaskowski, M. Nowicki   +8 more
doaj   +1 more source

The effect of leukaemia inhibitory factor (LIF) on bovine embryo development in vitro : a thesis presented in partial fulfilment of the requirements for the degree of Master of Agricultural Science in Animal Science at Massey University [PDF]

, 1995
The aim of the study was to investigate the effect of Leukaemia Inhibitory Factor (LIF) either during in vitro maturation (IVM) or in vitro culture (IVC) on bovine embryo development. Three main experiments were conducted using oocytes aspirated from 2-8
Margawati, Endang Tri
core  

A Surface‐engineered Microfluidic Device for Antibody‐Mediated Negative Selection of High‐Quality Sperm for Assisted Reproduction

Advanced Functional Materials, EarlyView.
This study reports a microfluidic device with a functionalized surface utilizing a polyoxazoline coating and covalently immobilized gold nanoparticles and anti‐phosphatidylserine antibody. The device efficiently eliminates pre‐apoptotic and apoptotic spermatozoa and yields sperm with substantially improved quality and low DNA damage, offering a simple ...
Soraya Rasi Ghaemi, David J. Sharkey, Nicole O. McPherson, Markos Negash Alemie, Krasimir Vasilev, Sarah A. Robertson   +5 more
wiley   +1 more source