نتایج جستجو برای: superovulated females
تعداد نتایج: 121269 فیلتر نتایج به سال:
BACKGROUND Sperm from C57BL/6 mice are difficult to cryopreserve and recover. Yet, the majority of genetically modified (GM) lines are maintained on this genetic background. METHODOLOGY/PRINCIPAL FINDINGS Reported here is the development of an easily implemented method that consistently yields fertilization rates of 70+/-5% with this strain. This six-fold increase is achieved by collecting sp...
The improvement in porcine embryo preservation and non-surgical embryo transfer (ET) procedures achieved in recent years represents essential progress for the practical use of ET in the pig industry. This study aimed to evaluate the effects of parity, weaning-to-estrus interval (WEI) and season on reproductive and embryonic parameters at day 6 after insemination of donor sows superovulated afte...
To investigate the role of ovarian status and to find out a suitable hormonal dose for induction of superovulation and its effect on biochemical status of the ovaries, the mice were injected with PMSG in doses of 5, 7.5, and 10 IU on different days of the estrous cycle i.e. proestrus, estrus, metestrus and diestrus followed by hCG injection 48 hr later. All these treatments increased the mean o...
Twenty-one pregnant ewe lambs (nine superovulated and 12 non-superovulated) were used to study the effects of superovulation (injecting 700 IU PMSG at the end of diestrus) on maternal serum progesterone concentrations, uterine and fetal weights at weeks 7 and 15 of pregnancy. In the ewes sacrificed at week 7 of pregnancy, superovulation increased the mean number of corpora lutea (P<0.01), fetus...
OBJECTIVE To compare timed intercourse and IUI with the husband's sperm in patients with unexplained infertility who are undergoing superovulation with gonadotropins. DESIGN Meta-analysis. All published reports of randomized, prospective studies with an English-language abstract extracted from MEDLINE were analyzed. A crossover search was done from the papers obtained. SETTING Academic cent...
Chronic ovulation as a contributing factor for the development of epithelial ovarian cancer in women has long been an outstanding hypothesis. To test the incessant ovulation hypothesis, mice were superovulated using weekly ip injections of pregnant mare serum gonadotropin (5 IU/animal), followed 48 h later by human chorionic gonadotropin (5 IU/animal). Wild-type CD1 mice were used along with CD...
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