Effects of adrenalectomy on serum concentrations of progesterone during the luteal phase of sheep.

Effects of adrenalectomy on serum concentrations of progesterone during the luteal phase of sheep. Research Abstract Details 

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Effects of adrenalectomy on serum concentrations of progesterone during the luteal phase of sheep. Abstract Text:

K K Schillo,C J Littel,W J Silvia,M A Green,

An experiment was conducted to test the hypothesis that the adrenal gland influences luteal activity in sheep. Twelve Finnish Landrace x Southdown ewes were either bilaterally adrenalectomized (n = 6) or sham adrenalectomized (n = 6) during the breeding season. At approximately 37 and 47 d after surgery, all ewes received intramuscular injections of cloprostenol to synchronize estrus. Blood samples were taken via jugular venipuncture at 48-h intervals between 1 and 19 d after the last cloprostenol treatment. Serum concentrations of progesterone were determined in each of these samples. Analysis of variance showed that concentrations of progesterone during the luteal phase were lower (P<0.05) in adrenalectomized ewes than in sham-operated controls, but that patterns of progesterone were similar for both groups of sheep. Based on these results, we conclude that the adrenal gland does not appear to be necessary for initiation of luteal regression in ewes.

Effects of adrenalectomy on serum concentrations of progesterone during the luteal phase of sheep. Publishing Authors By Initials

KK Schillo,CJ Littel,WJ Silvia,MA Green,

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Effects of adrenalectomy on serum concentrations of progesterone during the luteal phase of sheep. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Theriogenology

VOLUME: 31

Page Numbers: 855-9

Journal Abbreviation: Theriogenology

ISSN: 0093-691X

DAY: 26

MONTH: Apr

YEAR: 1989

Effects of adrenalectomy on serum concentrations of progesterone during the luteal phase of sheep. Information

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LANGUAGE: eng

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AFFILIATION: Department of Animal Sciences University of Kentucky Lexington, KY 40546-0215 USA.

Country: United States

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MEDLINETA: Theriogenology

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