Repeated acute activation of the hypothalamo-pituitary adrenal axis prior to and during estrus did not affect reproductive performance in gilts

Turner, A.I., Hemsworth, P.H., Hughes, P.E. and Tilbrook, A.J. 1998, Repeated acute activation of the hypothalamo-pituitary adrenal axis prior to and during estrus did not affect reproductive performance in gilts, Biology of reproduction, vol. 58, no. 6, pp. 1458-1462, doi: 10.1095/​biolreprod58.6.1458.

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Title Repeated acute activation of the hypothalamo-pituitary adrenal axis prior to and during estrus did not affect reproductive performance in gilts
Author(s) Turner, A.I.ORCID iD for Turner, A.I. orcid.org/0000-0002-0682-2860
Hemsworth, P.H.
Hughes, P.E.
Tilbrook, A.J.
Journal name Biology of reproduction
Volume number 58
Issue number 6
Start page 1458
End page 1462
Total pages 5
Publisher Society for the Study of Reproduction
Place of publication New York, N.Y.
Publication date 1998-06-01
ISSN 0006-3363
Keyword(s) Science & Technology
Life Sciences & Biomedicine
Reproductive Biology
CORTICOSTEROID-BINDING GLOBULIN
CYSTIC OVARIAN FOLLICLES
ACUTE STRESS
FOLLICULAR PHASE
SEXUAL-BEHAVIOR
FEMALE PIGS
CORTISOL
PLASMA
Summary We investigated the effects of repeated acute activation of the hypothalamo-pituitary adrenal axis, prior to and during estrus, on reproduction in gilts. Individual gilts (n = 24 per treatment) either served as controls or were subjected to daily acute stress ("negative handling," brief electric shock with a battery-operated prodder during confinement with the experimenter) commencing, on average, 8 days prior to estrus. Gilts subjected to negative handling had a significant elevation in plasma concentrations of cortisol that lasted at least 3-4 h, and these gilts were slower than control gilts to approach and interact with the experimenter in a standard test. Nevertheless, reproductive performance--as measured by sexual receptivity and proceptivity, ovulation, the percentage of gilts that became pregnant, the number of embryos 20-21 days after insemination, and the weight of embryos--was not affected by repeated acute activation of the hypothalamo-pituitary adrenal axis. Our results suggest that repeated acute activation of the hypothalamo-pituitary adrenal axis prior to and during estrus does not affect the factors that control estrus and ovulation in gilts.
Language eng
DOI 10.1095/​biolreprod58.6.1458
Field of Research 070206 Animal Reproduction
110306 Endocrinology
111603 Systems Physiology
11 Medical And Health Sciences
06 Biological Sciences
Socio Economic Objective 830308 Pigs
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©1998, Society for the Study of Reproduction
Persistent URL http://hdl.handle.net/10536/DRO/DU:30080836

Document type: Journal Article
Collection: Centre for Physical Activity and Nutrition Research
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