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Titolo:
REPEATED ACUTE ACTIVATION OF THE HYPOTHALAMOPITUITARY-ADRENAL AXIS PRIOR TO AND DURING ESTRUS DID NOT AFFECT REPRODUCTIVE-PERFORMANCE IN GILTS
Autore:
TURNER AI; HEMSWORTH PH; HUGHES PE; TILBROOK AJ;
Indirizzi:
MONASH UNIV,DEPT PHYSIOL CLAYTON VIC 3168 AUSTRALIA MONASH UNIV,DEPT PHYSIOL CLAYTON VIC 3168 AUSTRALIA AUSTRALIA AGR VICTORIA,VICTORIAN INST ANIM SCI WERRIBEE VIC 3030 AUSTRALIA UNIV MELBOURNE,DEPT AGR & RESOURCE MANAGEMENT PARKVILLE VIC 3052 AUSTRALIA
Titolo Testata:
Biology of reproduction
fascicolo: 6, volume: 58, anno: 1998,
pagine: 1458 - 1462
SICI:
0006-3363(1998)58:6<1458:RAAOTH>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
CORTICOSTEROID-BINDING GLOBULIN; CYSTIC OVARIAN FOLLICLES; ACUTE STRESS; FOLLICULAR PHASE; SEXUAL-BEHAVIOR; FEMALE PIGS; OVULATION; CORTISOL; PLASMA; HYDROCORTISONE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
43
Recensione:
Indirizzi per estratti:
Citazione:
A.I. Turner et al., "REPEATED ACUTE ACTIVATION OF THE HYPOTHALAMOPITUITARY-ADRENAL AXIS PRIOR TO AND DURING ESTRUS DID NOT AFFECT REPRODUCTIVE-PERFORMANCE IN GILTS", Biology of reproduction, 58(6), 1998, pp. 1458-1462

Abstract

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.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/09/20 alle ore 08:30:45