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2006 | 62 | 06 |

Tytuł artykułu

Rola prolaktyny w rozrodzie koni

Warianty tytułu

EN
Role of prolactin in horse reproduction

Języki publikacji

PL

Abstrakty

EN
Prolactin (PRL) is known for the diverse role it plays in the preparation, maintenance and secretor activity of the mammary glands during lactation. It plays a role in processes such reproduction, fat metabolism, hair shedding and immune response. In humans, prolactin is able to inhibit GnRH secretion and has an antagonistic activity on ovarian function in comparison to GnRH. The role of prolactin during the estrous cycle has not been established, although there are few reports on increased follicular growth in anestrous mares, which have been administered prolactin. In mares, prolactin concentration is related to the length of daylight photoperiod periods, and its highest concentrations coincide with periods of maximum reproductive activity.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

62

Numer

06

Opis fizyczny

s.624-627,rys.,bibliogr.

Twórcy

autor
  • Akademia Rolnicza, Al.Mickiewicza 24/28, 30-059 Krakow
autor

Bibliografia

  • 1.Aurich A., Lange J., Hoppen H. O., Auric J.: Influence of melatonin and oestradiol on the opioids regulation of LH and prolactin release in pony mares. J. Endocrinol. 1997, 154, 241-248.
  • 2.Besognet B., Hansen B., Deals P.: Prolactin Secretion during the Transitional Phase and the Relationship to Onset of Reproductive Season in Mares. Biol. Reprod. Mono. 1995, 1, 459-467.
  • 3.Besognet B., Hansen B., Deals P.: Induction of reproductive function in anestrous mares using a dopamine antagonist. Theriogenology 1997, 47, 467-480.
  • 4.Brendemuehl J. P., Cross D. L.: Influence of the dopamine antagonist domperidone on the vernal transition in seasonally anoestrous mares. J. Reprod. Fertil. Suppl. 2000, 56, 185-193.
  • 5.Duchamp G., Deals P.: Combined effect of sulpiride and light treatment on the onset of cyclicity in anestrus mares. Theriogenology 2002, 58, 599-602.
  • 6.Evans M. J., Alexander S. L., Irvine C. H. G., Livesey J. H., Donald R. A.: In vitro and in vivo studies of equine prolactin secretion throughout the year. J. Reprod. Fert. 1991, 44, 27-35.
  • 7.Fitzgerald B. P., Davison L. A., McManus C. J.: Evidence for a seasonal variation in the ability of exogenous melatonin to suppress prolactin secretion in the mare. Dom. Anim. Endocrinol. 2000, 18, 395-408.
  • 8.Forsyth I. A., Rossdale P. D., Thomas C. R.: Studies on milk composition and lactogenic hormones in the mare. J. Reprod. Fertil. Suppl. 1975, 23, 631-635.
  • 9.Ganong W. F.: Fizjologia. Podstawy fizjologii lekarskiej. Wyd. Lekarskie PZWL, Warszawa 1994.
  • 10.Greenspan F. S., Gardner D. G.: Endokrynologia ogólna i kliniczna. Wydawnictwo Czelej, Lublin 2004.
  • 11.Havern R. I., Whisnant C. S., Goodman R. L.: Hypothalamic sites of catecholamine inhibition of luteinizing hormone in the ewe. Biol. Reprod. 1991, 44, 476-482.
  • 12.Havern R. I., Whisnant C. S., Goodman R. L.: Dopaminergic structures in the ovine hypothalamus mediating estradiol negative feedback in ewes. Endocrinology 1994, 134, 1905-1914.
  • 13.Johnson A. L.: Serum concentrations of prolactin, thyroxine and triiodothyronine relative to season and the estrous cycle in the mare. J. Anim. Sci. 1986, 62, 1012-1020.
  • 14.Knobil E., Neill J. D.: Encyclopedia of Reproduction. Academic Press, San Diego 1999.
  • 15.Lincoln G. A.: Effects of placing micro-implants of melatonin in thee pars tuberalis, pars distalis and the lateral septum of the forebrain on the secretion of FSH and prolactin, and testicular size in rams. J. Endocrinol. 1994, 142, 267-276.
  • 16.Lincoln G. A., Clarke I. J.: Photoperiodically-induced cycles in the secretion of prolactin in hypothalamo pituitary disconnectedrams: evidence for translation of the melatonin signal in the pituitary gland. J. Neuroendocrin. 1994, 6, 251-260.
  • 17.Lincoln G. A., Clarke I. J.: Evidence that melatonin acts in the pituitary gland through a dopamine independent mechanism to mediate effects of daylength on the secretion of prolactin in the ram. J. Neuroendocrinol. 1995, 7, 637-643.
  • 18.McKinnon A. O., Voss J. L.: Equine Reproduction. Lea&Febiger, Philadelphia, London 1993.
  • 19.Nagy G. M., Neill J. D.: The Physiology of Reproduction. Prolactin Secretion and Its Control. Raven Press, New York 1994.
  • 20.Nagy T. R., Gower B. A., Stetson M. H.: Response of collared lemmings to melatonin: 1. Implants and photoperiod. J. Pineal Res. 1994, 17, 177-184.
  • 21.Nequin L. G., King S. S., Johnson A. L., Gow G. M., Ferreira-Dias G. M.: Prolactin may play a role in stimulating the equine ovary during the spring transition. J. Equine Vet. Sci. 1993, 13, 631-635.
  • 22.O’Callaghan D., Karsch F. J., Boland M. P., Roche J. F.: What photoperiodic signal is provided by a continous-relase melatonin implant? Biol. Reprod. 1991, 45, 927-933.
  • 23.Olin R. B., Hebel S. K., Connel S. I.: Drug Facts and Comparisons. JB Lipencott, St. Louis 1991, s. 2561.
  • 24.Palmer E., Driancourt M. A.: Some interactions of season of foaling, photoperiod and ovarian activity in the equine. Livestock Prod. Sci. 1983, 10, 197-210.
  • 25.Peaker M., Rossdale P. D., Forsyth I. A., Falk M.: Changes in mammary development and composition of secretion during late pregnancy in the mare. J. Reprod. Fertil. Suppl. 1979, 27, 555-561.
  • 26.Poulton A. L., English J., Symons A. M., Arendt J.: Effects of various melatonin treatments on plasma prolactin concentrations in the ewe. J. Endocrinol. 1986, 108, 287-292.
  • 27.Poulton A. L., English J., Symons A. M., Arendt J.: Plasma prolactin concentrations in pinealectomized ewes receiving melatonin treatment and in pineal intact ewes maintained under a non-24 h photoperiod. J. Pineal. Res. 1989, 6, 243-252.
  • 28.Thompson D. I. Jr., Johnson L. St., George R. I., Garza F. Jr.: Concentrations of prolactin, luteinizing hormone and follicle stimulating hormone in pituitary and serum of horses: effects of sex, season and reproductive state. J. Anim. Sci. 1986, 63, 854-860.
  • 29.Thompson D., Nett T.: Thyroid stimulating hormone and prolactin secretion after thyrotropin releasing hormone administration to mares: dose response during estrus in summer. Domest. Anim. Endocrinol. 1984, 1, 263-268.
  • 30.Thibault C., Levasseur M. C., Hunter R. H. F.: Reproduction in Mammals and Man. Ellipses, Paris 1993.
  • 31.Witkowski M., Tischner M.: Effect of increased daylight during late pregnacy on the reproductive performance of mare after parturition. J. Reprod. Fert. 2 Suppl., 2000, 51, 673-677.
  • 32.Wheeler S. E., Fitzgerald B. P.: Prolactin concentrations are not suppressed in mares administered constant exogenous melatonin. J. Equine Vet. Sci. 1998, 18, 44-47.
  • 33.Worthy K., Escreet R., Renton J. P., Eckersall P. D., Douglas T. A., Flint D. J.: Plasma prolactin concentrations and cyclic activity in pony mares during parturition and early lactation. J. Reprod. Fertil. 1986, 77, 569-574.
  • 34.Worthy K., Colquhoun K., Escreet R., Dunlop M., Renton J. P., Douglas T. A.: Plasma prolactin concentrations in non-pregnant mares at different times of the year and in relation to events in the cycle. J. Reprod. Fertil. 1987, 35, 269-276.

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

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