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Titolo:
SEXUAL STEROID PROFILES AND OVARIAN ACTIV ITIES OF THE FEMALE PANDA YAN-YAN IN THE ZOO OF BERLIN
Autore:
MEYER HHD; ROHLEDER M; STREICH WJ; GOLTENBOTH R; OCHS A;
Indirizzi:
TECH UNIV MUNICH,INST PHYSIOL,FORSCHUNGSZENTRUM MILCH & LEBENSMITTEL WEIHENSTEP,VOTTINGER STR 45 D-85354 FREISING GERMANY FORSCHUNGSVERBUND BERLIN EV,INST ZOO & WILDTIERFORSCH BERLIN GERMANY ZOOL GARTEN BERLIN BERLIN GERMANY
Titolo Testata:
Berliner und Munchener Tierarztliche Wochenschrift
fascicolo: 4, volume: 110, anno: 1997,
pagine: 143 - 147
SICI:
0005-9366(1997)110:4<143:SSPAOA>2.0.ZU;2-P
Fonte:
ISI
Lingua:
GER
Keywords:
PANDA; SEX STEROIDS; OVARY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
5
Recensione:
Indirizzi per estratti:
Citazione:
H.H.D. Meyer et al., "SEXUAL STEROID PROFILES AND OVARIAN ACTIV ITIES OF THE FEMALE PANDA YAN-YAN IN THE ZOO OF BERLIN", Berliner und Munchener Tierarztliche Wochenschrift, 110(4), 1997, pp. 143-147

Abstract

The nine years old giant panda YAN YAN was received in April 1995 on loan for 5 years to the Berlin Zoo. Urine samples were collected dailyor every second day from April 1995 to June 1996 in order to follow up sexhormone secretions and ovarian activities. Conjugated steroids were hydrolysed, extracted and measured with two enzyme immune assays (EIA) being specific for either total oestrogenes or pregnandiol. The evaluation of the hormone secretion pattern yielded the following results:There is a significant synchronous cross correlation between estrogen and progestin metabolites secretion indicating its simultaneous synthesis. In addition, we found a regular increase and decrease of both hormones with a 13 days interval. This secretory pattern indicates repeating development and atresia of follicle cohorts with a cycle length of about 13 days. Only a single period of sligthly elevated oestrogen synthesis was monitored in Feb. 96 without any signs of oestrus. Obviously the stimulation of ovarian function was insufficient for completeovulation and corpus luteum formation.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/10/20 alle ore 02:14:24