Topic:Hormones

Hormones in horses are chemical messengers produced by various glands and tissues, regulating numerous physiological processes essential for maintaining homeostasis. These hormones influence a wide range of functions, including growth, metabolism, reproduction, and stress responses. Key hormones in equine physiology include cortisol, estrogen, testosterone, and insulin, among others. The levels and effects of these hormones can vary based on factors such as age, sex, and environmental conditions, impacting overall health and performance. This page compiles peer-reviewed research studies and scholarly articles that explore the production, regulation, and physiological roles of hormones in equine biology.

Chemical and biological properties of the subunits of pregnant mare serum gonadotropin.

Biochemical and biophysical research communications May 20, 1974 Volume 58, Issue 2 397-404 doi: 10.1016/0006-291x(74)90378-7

Papkoff H.No abstract available

American journal of veterinary research May 1, 1974 Volume 35, Issue 5 657-660

Kelley ST, Oehme FW, Brandt GW.No abstract available

Journal of animal science April 1, 1974 Volume 38, Issue 4 823-830 doi: 10.2527/jas1974.384823x

Squires EL, Garcia MC, Ginther OJ.No abstract available

Equine veterinary journal April 1, 1974 Volume 6, Issue 2 87-93 doi: 10.1111/j.2042-3306.1974.tb03937.x

Allen WE, Hadley JC.No abstract available

Molecular and cellular endocrinology April 1, 1974 Volume 1, Issue 2 139-155 doi: 10.1016/0303-7207(74)90006-9

Boeynaems JM, Van Sande J, Pochet R, Dumont JE.No abstract available

Journal of reproduction and fertility April 1, 1974 Volume 37, Issue 2 421-423 doi: 10.1530/jrf.0.0370421

Sharma OP.No abstract available

Journal of animal science April 1, 1974 Volume 38, Issue 4 811-818 doi: 10.2527/jas1974.384811x

Katovich M, Evans JW, Sanchez O.No abstract available

Journal of reproduction and fertility April 1, 1974 Volume 37, Issue 2 343-351 doi: 10.1530/jrf.0.0370343

Stabenfeldt GH, Hughes JP, Wheat JD, Evans JW, Kennedy PC, Cupps PT.The effect of hysterectomy on ovarian activity was studied in four mares. The cyclic secretion pattern of plasma progestins normally observed in the intact mare was interrupted by hysterectomy. Follicular activity was observed in all four hysterectomized mares, in spite of pro- longed luteal activity, with a large number of follicles attaining ovulatory size without the occurrence of ovulation. Some ovulations were observed at irregular intervals in two out of four hysterectomized mares in spite of plasma progestin levels which ranged from 2 to 6 ng/ml. While all ovulations which occur...

Biochemistry March 26, 1974 Volume 13, Issue 7 1389-1393 doi: 10.1021/bi00704a012

Landefeld TD, McShan WH.No abstract available

Journal of animal science February 1, 1974 Volume 38, Issue 2 330-338 doi: 10.2527/jas1974.382330x

Squires EL, Douglas RH, Steffenhagen WP, Ginther OJ.No abstract available

Acta endocrinologica February 1, 1974 Volume 75, Issue 2 243-248 doi: 10.1530/acta.0.0750243

van den Brande JL, Kootte F, Tielenburg R, van der Wilk M, Huyser T.No abstract available

Journal of reproduction and fertility February 1, 1974 Volume 36, Issue 2 445-446 doi: 10.1530/jrf.0.0360445

Nugent CL, Lopata A, Gould MK.No abstract available

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The fertility of stallions.

The Veterinary record January 19, 1974 Volume 94, Issue 3 55 doi: 10.1136/vr.94.3.55

Cutler RS.No abstract available

Acta physiologica latino americana January 1, 1974 Volume 24, Issue 3 235-244

Isler GV.No abstract available

Equine veterinary journal January 1, 1974 Volume 6, Issue 1 31-35 doi: 10.1111/j.2042-3306.1974.tb03925.x

Allen WR, Stewart F, Cooper MJ, Crowhurst RC, Simpson DJ, McEnery RJ, Greenwood RE, Rossdale PD, Ricketts SW.This research investigates the use of synthetic prostaglandin analogues, specifically ICI-81008 and ICI-79939, in mares for inducing luteolysis, the regression of the corpus luteum, to manage infertility issues. The study [...]

Bulletin de l'Academie polonaise des sciences. Serie des sciences biologiques January 1, 1974 Volume 22, Issue 10 719-724

Flisińska-Bojanowska A, Skwarlo K, Lukaszewska J, Bobilewicz D, Wilk M, Gill J.No abstract available

Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.) January 1, 1974 Volume 145, Issue 1 145-150 doi: 10.3181/00379727-145-37765

Noden PA, Oxender WD, Hafs HD.No abstract available

American journal of veterinary research January 1, 1974 Volume 35, Issue 1 79-81

Ginther OJ, Wentworth BC.No abstract available

Research in veterinary science January 1, 1974 Volume 16, Issue 1 114-116

Smith ID.Progesterone concentration was measured by a protein-binding assay in peripheral plasma samples taken from 8 thoroughbred mares throughout pregnancy and for 2 days after parturition. There were considerable differences between individuals at any one time in gestation but, on average, levels rose during the first 60 days of gestation, fell to a minimum at about 180 days when the accessory corpora lutea regress and finally reached their highest mean value of 11.5 mg/ml±1.2 (S.E.M.) during the period 270 days to term, significantly higher than the mean, 7.6 ng/ml±0.5 (S.E.M) for the whole of ge...

Journal of the South African Veterinary Association December 1, 1973 Volume 44, Issue 4 363-373

van Niekerk CH, Morgenthal JC, Sanders CP, Malan JE.Progesterone concentrations were assayed by a competitive protein-binding technique in peripheral plasma samples collected twice daily during four oestrous cycles of three mares, and once a day during the first seven weeks of pregnancy in four mares. Large variations were found in progesterone levels between morning and evening samples on the same day in the same mare. The lowest progesterone concentration was found about the time of ovulation. Within 24 hours after ovulation the progesterone concentration increased and two peaks, one at 5 days and another at 8 days, were found. Be...