Seasonal reproduction in wild and captive male koala (Phascolarctos cinereus) populations in south-east Queensland

被引：14

作者：

Allen, Camryn D. ^{[1
]}

de Villiers, Deidre L. ^{[2
]}

Manning, Brett D. ^{[2
]}

Dique, David S. ^{[2
]}

Burridge, Michelle ^{[3
]}

Chafer, Mandy L. ^{[3
]}

Nicolson, Vere N. ^{[3
]}

Jago, Sophia C. ^{[3
]}

McKinnon, Allan J. ^{[2
]}

Booth, Rosemary J. ^{[2
]}

McKee, Jeff J. ^{[4
]}

Pyne, Michael J. ^{[5
]}

Zee, Yeng Peng ^{[1
]}

Lundie-Jenkins, Geoff ^{[2
]}

Theilemann, Peter ^{[2
]}

Wilson, Richard J. ^{[6
]}

Carrick, Frank N. ^{[7
]}

Johnston, Stephen D. ^{[1
]}

机构：

[1] Univ Queensland, Sch Anim Studies, Gatton, Qld 4343, Australia

[2] Environm Protect Agcy, Brisbane, Qld 4000, Australia

[3] Dreamworld, Coomera, Qld 4209, Australia

[4] Ecosure, Mobile Dis Ecol Unit, W Burleigh, Qld 4219, Australia

[5] Currumbin Wildlife Sanctuary, Currumbin, Qld 4223, Australia

[6] Univ Queensland, Dept Math, St Lucia, Qld 4072, Australia

[7] Univ Queensland, Ctr Mined Land Rehabil, St Lucia, Qld 4072, Australia

来源：

REPRODUCTION FERTILITY AND DEVELOPMENT | 2010年 / 22卷 / 04期

基金：

澳大利亚研究理事会;

关键词：

bulbourethral gland; cryopreservation; electroejaculation; gonadotrophin-releasing hormone agonist; seminal characteristics; sternal gland; testicular size; testosterone; ARTIFICIAL-INSEMINATION; CRYOPRESERVATION; SPERMATOZOA; SEMEN; MORPHOLOGY; WOMBAT; COMMON; PCR;

D O I：

10.1071/RD09113

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The effects of breeding season (late spring to early autumn) on south-east Queensland male koala fertility were examined to improve the efficacy of the AI procedure and to determine the practicality of using free-range animals as semen donors for a genome resource bank. Seasonal changes in male koala reproductive function were assessed in a wild free-range population (n = 14; obtained every 6 weeks from January to November 2005), a necropsied healthy wild population (n = 84; obtained monthly from September 2004 to August 2005) and a captive population (n = 7; obtained monthly from October 2005 to October 2006). Reproductive parameters investigated included bodyweight, coat score, sternal gland area and activity, testosterone secretion, reproductive anatomy volume and semen quality (before and after cryopreservation). Collectively, these findings show that reproduction in male koalas from south-east Queensland changes seasonally and that winter appears to be the optimal season in which to collect semen samples by electroejaculation. While it was possible to repeatedly collect semen from free-range koalas for future genetic management via potential storage in a genome resource bank, the survival of these spermatozoa after cryopreservation was poor and will require further improvement.

引用

页码：695 / 709

页数：15

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