Reproduction

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PROPOSAL FOR A CLASSIFICATION OF OOCYTES AND FOLLICLES IN THE MOUSE OVARY
Reproduction - Tập 17 Số 3 - Trang 555-557 - 1968
T. Pedersen, Harm Peters
A combined radioimmunoassay and immunocytochemical study of ovarian oxytocin production during the periovulatory period in the ewe
Reproduction - Tập 78 Số 1 - Trang 167-183 - 1986
D.C. Wathes, S. E. F. Guldenaar, R. W. Swann, R. C. Webb, D. G. Porter, B. T. Pickering
Suppression of prostaglandin F-2 release and delay of luteolysis after active immunization against oxytocin in the goat
Reproduction - Tập 75 Số 1 - Trang 63-68 - 1985
R.G. Cooke, A.M. Homeida
DELAYED IMPLANTATION IN ROE DEER (CAPREOLUS CAPREOLUS)
Reproduction - Tập 39 Số 1 - Trang 225-233 - 1974
R. John Aitken
POSSIBLE ROLE OF PROLACTIN DURING THE OESTROUS CYCLE AND GESTATION IN THE EWE
Reproduction - Tập 39 Số 2 - Trang 473-483 - 1974
G. Kann, R Denamur
Effects of bromocriptine administration during the follicular phase of the oestrous cycle on prolactin and gonadotrophin secretion and follicular dynamics in merino monovular ewes
Reproduction - Tập 120 Số 1 - Trang 177-186 - 2000
RA Picazo, Antonio González-Bulnes, A Gomez Brunet, A del Campo, B Granados, J Tresguerres, A. López Sebastián
Two experiments using Spanish Merino ewes were conducted to investigate whether the secretion of prolactin during the follicular phase of the sheep oestrous cycle was involved in the patterns of growth and regression of follicle populations. In both experiments, oestrus was synchronized with two cloprostenol injections which were administered 10 days apart. Concurrent with the second injection (time 0), ewes (n = 6 per group) received one of the following treatments every 12 h from time 0 to 72 h: group 1: vehicle injection (control); group 2: 0.6 mg bromocriptine (0.03 mg per kg per day); and group 3: 1.2 mg bromocriptine (0.06 mg per kg per day). In Expt 1, blood samples were collected every 3 h from 0 to 72 h, and also every 20 min from 38 to 54 h to measure prolactin, LH and FSH concentrations. In Expt 2, transrectal ultrasonography was carried out every 12 h from time 0 until oestrus, and blood samples were collected every 4 h to measure prolactin, LH and FSH concentrations. Ovulation rates were determined by laparoscopy on day 4 after oestrus. Bromocriptine markedly decreased prolactin secretion, but did not affect FSH concentrations, the mean time of the LH preovulatory surge or LH concentrations in the preovulatory surge. Both doses of bromocriptine caused a similar decrease in LH pulse frequency before the preovulatory surge. The highest bromocriptine dose led to a reduction (P < 0.01) in the number of 2-3 mm follicles detected in the ovaries at each time point. However, bromocriptine did not modify the total number or the number of newly detected 4-5 mm follicles at each time point, the number of follicles > 5 mm or the ovulation rate. In conclusion, the effects of bromocriptine on gonadotrophin and prolactin secretion and on the follicular dynamics during the follicular phase of the sheep oestrous cycle indicate that prolactin may influence the viability of gonadotrophin-responsive follicles shortly after luteolysis.
Production in vitro of mouse early pregnancy factor and purification to homogeneity
Reproduction - Tập 71 Số 2 - Trang 581-592 - 1984
Alice Cavanagh
Detection of induced death of embryos in sheep by the rosette inhibition test
Reproduction - Tập 57 Số 2 - Trang 385-389 - 1979
C. D. Nancarrow, B. M. Evison, R. J. Scaramuzzi, KE Turnbull
The effect of vasectomy on pituitary-gonadal function in men
Reproduction - Tập 48 Số 2 - Trang 441-442 - 1976
V K Naik, A. N. Thakur, A. R. Sheth, Usha Joshi, S. S. RAO, D. S. Pardanani, J. K. Kulsreshtha, Rajash K. Handa
Influence of hCG injection and steroid treatment on prostaglandin metabolism by rabbit uterus and oviduct
Reproduction - Tập 57 Số 1 - Trang 101-112 - 1979
R. R. Bodkhe, M. J. K. Harper
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