Prediction of Ovulation by Urinary LH Surge
نویسندگان
چکیده
منابع مشابه
Cetrorelix suppresses the preovulatory LH surge and ovulation induced by ovulation-inducing factor (OIF) present in llama seminal plasma
BACKGROUND The purpose of the study was to determine if the effect of llama OIF on LH secretion is mediated by stimulation of the hypothalamus or pituitary gland. METHODS Using a 2-by-2 factorial design to examine the effects of OIF vs GnRH with or without a GnRH antagonist, llamas with a growing ovarian follicle greater than or equal to 8 mm were assigned randomly to four groups (n = 7 per g...
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Analogs of gonadoliberin (GnRH) are widely used in cattle to synchronize estrus and to induce ovulation, as well as for the treatment of ovarian cysts. The aim of this study was to compare the plasma profiles of LH and progesterone and the follicular dynamics in response to the administration of gonadorelin, lecirelin, or buserelin at the dose recommended to induce ovulation. In addition, the b...
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The mink is a seasonal breeder with induced ovulation and delayed implantation. Reproductive processes are strongly influenced by energy supply and body condition. Items for which there is paucity or complete lack of data were the main objectives of this study: the temporal relationship between copulation and the pre-ovulatory LH surge and the influence of energy supply on LH release. A total o...
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The preovulatory luteinizing hormone (LH) surge results from the integration of complex interactions among gonadal steroids and hypothalamic and pituitary hormones. To evaluate changes in LH secretory dynamics that occur during the rat LH surge, we have 1) obtained frequently sampled serum LH concentration time series, 2) used both waveform-dependent and waveform-independent convolution analyse...
متن کاملOvulation and Endocrine Response after Lh-rh in Domestic Animals
cows 2 weeks after parturition and in diestrous and proestrous heifers. Serum LH concentrations increased after LH-RH treatment and the greatest response was observed in cows with ovarian follicular cysts. Serum progesterone concentrations were increased at 6 hours after LH-RH in animals which had functional luteal tissue in the ovaries but serum estradiol and estrone were unchanged. Ovarian fo...
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ژورنال
عنوان ژورنال: Folia Endocrinologica Japonica
سال: 1992
ISSN: 0029-0661
DOI: 10.1507/endocrine1927.68.11_1188