Search Results - "Cumming, I A"

The Effect of Unilateral Ovariectomy on Plasma Gonadotropin Levels, Estrus and Ovulation Rate in Sheep by Findlay, J K, Cumming, I A

“…The phenomenon of compensatory hypertrophy of ovarian weight and ovulation rate following unilateral ovariectomy was used to examine a possible role for the…”
Get full text

FSH in the ewe: effects of season, live weight and plane of nutrition on plasma FSH and ovulation rate by Findlay, J.I, Cumming, I.A

“…The concentrations of FSH (ng NIH-FSH-S6/ml) were measured by specific radioimmunoassay in jugular vein plasmas of 3 groups of ewes fed complete rations of…”
Get full text

Feedback effects of the testis on pituitary responsiveness to luteinizing hormone-releasing hormone infusions in the ram by Bremner, W J, Findlay, J K, Lee, V W, de Kretser, D M, Cumming, I A

Get more information

Increase in Ovulation Rate in Sheep Following Administration of an LHRH Analogue by Findlay, J K, Cumming, I A

“…A nonapeptide (D-Ser (TBU) 6 -EA 1 0 ; Hoe 766; Hoechst AG), 25 times more potent than LHRH in LH and FSH releasing activity, was administered (2 µg s.c. in…”
Get full text

Pituitary-testicular responses in rams to prolonged infusions of luteinizing hormone-releasing hormone (LHRH) by Bremner, W.J, Findlay, J.K, Cumming, I.A, Hudson, B, De Kretser, D.M

“…Luteinizing hormone releasing hormone (LHRH) was administered to adult rams as constant intravenous infusions lasting 4 to 6 h. Dosages of 0.05, 0.1, 0.5 and…”
Get full text

Constancy of interval between luteinizing hormone release and ovulation in the ewe by Cumming, I.A, Buckmaster, J.M, Blockey, M.A. deB, Goding, J.R, Winfield, C.G, Baxter, R.W

“…To investigate the time relationships between the preovulatory LH peak and ovulation in the ewe, a "short" radioimmunoassay for measuring plasma LH…”
Get full text

Steroid hormone requirements for the maintenance of early pregnancy in sheep: a study using ovariectomized adrenalectomized ewes by Cumming, I A, Baxter, R, Lawson, R A

Get full text

The effect of the presence of a ram on the time of ovulation in ewes by Cahill, L P, Buckmaster, J M, Cumming, I A, Parr, R A, Williams, A H

Get full text

Effect of synthetic TRF on prolactin release in the sheep by Fell, L R, Findlay, J K, Cumming, I A, Goding, J R

Get more information

Inhibition of fetal growth and survival by testosterone administration to pregnant sheep by Bremner, W J, Cumming, I A

“…Testosterone (as testosterone enanthate, 250 mg i.m. every 2 wk) was administered to pregnant ewes (n = 16), and injections of vehicle were used in 10 control…”
Get more information

Normal duration of the oestrous cycle in ewes with congenital absence of one uterine horn by O'Shea, J D, Lee, C S, Cumming, I A

Get full text

Secretion of prolactin and luteinizing hormone at oestrus in the ewe by Cumming, I A, Brown, J M, Goding, J R, Bryant, G D, Greenwood, F C

Get more information

Effect of pregnancy on the FSH response to synthetic gonadotrophin-releasing hormone in ewes by Chamley, W A, Findlay, J K, Jonas, H, Cumming, I A, Goding, J R

Get full text

Fertility and tubal morphology after microsurgical removal of segments of the porcine fallopian tube by Paterson, P J, Downing, B, Trounson, A O, Cumming, I A

“…A controlled study was carried out in the pig to determine the effect on fertility of resecting either the ampullary-isthmic junction or the isthmus. In both…”
Get more information

Changes in the levels of progesterone, corticosteroids, estrone, estradiol-17 beta, luteinizing hormone, and prolactin the peripheral plasma of the ewe during late pregnancy and at parturition by Chamley, W.A, Buckmaster, J.M, Cerini, M.E, Cumming, I.A, Goding, J.R, Obst, J.M, Williams, A, Winfield, C

Get full text

Solid-phase radioimmunoassay of ovine prolactin in antibody-coated tubes. Prolactin secretion during estradiol treatment, at parturition, and during milking by Fell, L R, Beck, C, Brown, J M, Catt, K J, Cumming, I A, Goding, J R

Get more information

The physiological release of specific individual neurophysins into the circulation of pigs by Dax, E M, Cumming, I A, Lawson, R A, Johnston, C I

“…Specific homologous radioimmunoassays for the two major porcine neurophysins have been developed and utilized to measure plasma neurophysins during events…”
Get more information

THE OVINE AND BOVINE OESTROUS CYCLE by CUMMING, I. A.

Get full text

Concentrations of luteinizing hormone in ovariectomized ewes and the effect of disturbance, starvation and vascular cannulation by Hearnshaw, H, Cumming, I A, Goding, J R

“…Neither routine experimental procedures, including vascular cannulation and venipuncture, nor starvation or disturbance caused significant fluctuations in…”
Get more information

Functional assessment of autotransplanted endocrine organs by Goding, J R, Baird, D T, Cumming, I A, McCracken, J A

Get more information