Effect of dopamine agonists or antagonists, TRH, stress and piglet removal on plasma prolactin concentrations in lactating gilts.

Effect of dopamine agonists or antagonists, TRH, stress and piglet removal on plasma prolactin concentrations in lactating gilts. Research Abstract Details 

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Effect of dopamine agonists or antagonists, TRH, stress and piglet removal on plasma prolactin concentrations in lactating gilts. Abstract Text:

B B Smith,W C Wagner,

The effect of dopamine agonists (ergocryptine), antagonists (chlorpromazine, haloperidol, reserpine, pimozide), thyrotropin releasing hormone or stress (restraint, piglet removal) on prolactin release was studied in primiparous lactating gilts. All animals were fitted with surgically implanted jugular catheters before farrowing. The only drug treatments which resulted in a significant change in PRL concentrations in blood were thyrotropin releasing hormone (increase) and ergocryptine (decrease). The results suggest that dopamine may not be the only regulator of prolactin in lactating pigs. Further studies are needed to identify drugs which would be useful in clinical situations for treatment of lactation failure due to low prolactin secretion. In the two stress-exposed groups, there was a gradual, steady decline in the plasma concentration of prolactin which resulted from loss of suckling contact with the piglets. Thus, snare restraint does not increase prolactin secretion in lactating sows confirming the results of other studies on pigs in different physiologic states.

Effect of dopamine agonists or antagonists, TRH, stress and piglet removal on plasma prolactin concentrations in lactating gilts. Publishing Authors By Initials

BB Smith,WC Wagner,

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Effect of dopamine agonists or antagonists, TRH, stress and piglet removal on plasma prolactin concentrations in lactating gilts. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Theriogenology

VOLUME: 23

Page Numbers: 283-96

Journal Abbreviation: Theriogenology

ISSN: 0093-691X

DAY: 26

MONTH: Feb

YEAR: 1985

Effect of dopamine agonists or antagonists, TRH, stress and piglet removal on plasma prolactin concentrations in lactating gilts. Information

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LANGUAGE: eng

NlmUniqueID: 421510

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Grant and Affiliation Information for Effect of dopamine agonists or antagonists, TRH, stress and piglet removal on plasma prolactin concentrations in lactating gilts.

AFFILIATION: Department of Veterinary Biosciences, College of Veterinary Medicine University of Illinois Urbana, IL 61801 USA.

Country: United States

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MEDLINETA: Theriogenology

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