Parcourir par sujet "OVULATION"
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Effect of mifepristone (RU486) on the pituitary response to gonadotrophin releasing hormone in women
(1996)Mifepristone interrupts folliculogenesis in women but the mechanism is not clear, Previous studies have investigated the effect of this compound on gonadotrophin secretion and have provided conflicting results. To study ... -
Oestradiol concentration as a predictor of ovarian response in FSH stimulated ewe-lambs
(2007)We investigated the prediction of ovarian response using oestradiol determination, in 37 gonadotrophin stimulated Karagouniko ewe-lambs. Ovarian stimulation was induced by serial FSH administrations, and laparoscopic ... -
Progesterone concentration as an indicator of ovarian response to superovulation in Chios ewes
(2002)We investigated the prediction of the ovarian response to superovulation using progesterone (P-4) determination in Chios ewes. During the estrus period, estrus synchronization and multiple ovulations were induced in 100 ... -
Ram seminal plasma and fertility: Results from an ongoing field study
(2000)The effects of partial replacement of ram semen diluent with ram seminal plasma on the fertility of ewes were studied. Crossbred Chios ewes (n = 152) were assigned to six groups. The oestrous cycles of the ewes were ... -
Relationship between electrical resistance of cervical mucus and ovarian steroid concentration at the time of artificial insemination in ewes
(2014)The purpose of this study was to investigate whether fertile or non-fertile inseminations (AI) in synchronized ewes are correlated with the electrical resistance of cervical mucus (ERCM) and the ovarian steroid concentration. ... -
Reproductive efficiency of three estrus synchronization schemes comprising fixed-time insemination in dairy cows
(2000)The objective of this field trial was to compare the odds of pregnancy at 25 days (P25) and at 60 days (P60), of embryonic death (ED) between 25 and 60 days, and of non-pregnant cows returning to heat 20-25 days after ... -
USE OF PRUSSIAN CARP, CARASSIUS GIBELIO, PITUITARIES IN THE ARTIFICIAL PROPAGATION OF FEMALE COMMON CARP, CYPRINUS CARPIO
(2008)Background. The usage of common carp pituitaries has been associated with very high costs, resulting from sacrificing the valuable broodstock. A close taxonomic proximity between the Common carps Cyprinus carpio L. and ...