نتایج جستجو برای: dominant follicle
تعداد نتایج: 152137 فیلتر نتایج به سال:
This study aims to characterize the estrous cycle of Asinina de Miranda jennies in the breeding season, on the basis of data collected from serial ultrasonographic examination and serum progesterone determinations in 14 females during a total of 33 cycles. The length of the interovulatory interval was 23.8 ± 0.55 days, the diestrus and estrus lasting 17.9 ± 0.46 days and 6.65 ± 0.30 days, respe...
We investigated the effects of follicle-stimulating hormone (FSH) on atresia of the dominant follicle and changes in relevant apoptosis genes in granulosa cells of dominant follicles regulated by FSH in vivo. Four-week-old mice were administered FSH by intraperitoneal injection to induce follicular maturation. Granulosa cells of dominant follicles were collected at 48, 72, and 96 h after the fi...
Cows induced to ovulate small dominant follicles were reported to have reduced pregnancy rates compared with cows that ovulated large follicles. The reason for the presence of small dominant follicles at the time of GnRH-induced ovulation in timed AI protocols is unknown. The objectives of this experiment were to examine the role of day of the estrous cycle at initiation of treatment on ovulati...
background: intrauterine insemination (iui) is a primary, simple and effective method of infertility treatment. the aim of this study was to determine the success rate of iui and some related male and female factors. materials and methods: this quasi - experimental study was done on 500 infertile couples from 2006 to 2008. either clomiphene or human menopausal gonadotropin (hmg) alone or clomip...
Objective Polycystic ovary syndrome (PCOS) is highly associated with anovulatory infertility, features of the metabolic syndrome, including obesity, insulin resistance and dyslipidemia. Serum concentrations of high sensitive C- reactive protein (hs-CRP) were significantly higher in obese than in non-obese PCOS patients at baseline suggesting that the relationship between elevated hs-CRP levels ...
Objectives of this study were to determine if concentrations of steroids, insulin-like growth factor -I (IGF-I), and IGF binding proteins (IGFBP) in follicular fluid and numbers of LH and IGF-I receptors change during growth of the dominant follicle. Ovarian follicular development was monitored daily via ultrasound in lactating Holstein cows. Animals underwent bilateral ovariectomy when the dom...
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