The use of long acting subcutaneous levonorgestrel (LNG) gel depot as an effective contraceptive option for cotton-top tamarins (Saguinus oedipus)

Authors: C.J. Wheaton, A. Savage, A. Shukla, D. Neiffer, W. Qu, Y. Sun, B. L. Lasley

Publication/Journal: Zoo Biology

Keywords: biodegradable injectate, contraception, estrone conjugates, pregnanediol-3-glucuronide

2011

A safer method for studying hormone metabolism in an Asian elephant (Elephas maximus): accelerator mass spectrometry

Authors: Lisa Yon, Brian Faulkner, Sumolya Kanchanapangka, Narongsak Chaiyabutr, Sompast Meepan, Bill Lasley

Publication/Journal: Zoo Biology

Keywords: assay, noninvasive, testosterone, urine

2010

Environmental enrichment for ostrich, Struthio camelus, chicks

Authors: J.W. Christensen, B.L. Nielsen

Publication/Journal: Animal Welfare

Keywords: animal welfare, environmental enrichment, exploration, ostrich, pecking behaviour, struthio camelus

2004

Factors affecting reproduction in zoo-housed geoffroy’s tamarins(Saguinus geoffroyi)

Authors: Christopher W. Kuhar, Tamara L. Bettinger, Alan L. Sironen, James H. Shaw, Bill L. Lasley

Publication/Journal: Zoo Biology

Keywords: captive management, cortisol, reproduction, saguinus, tamarin

2003

Use of levonorgestrel as an effective means of contraception in the white-faced saki (Pithecia pithecia)

Authors: Anne Savage, Dara S. Zirofsky, Susan E. Shideler, Tessa E. Smith, Bill L. Lasley

Publication/Journal: Zoo Biology

Keywords: cebids, contraceptives, levonorgestrel (lng), new world primates

2002

Efficacy of levonorgestrel when administered as an irradiated, slow-release injectable matrix for feline contraception

Authors: Sheri Looper, Gary Anderson, Yichun Sun, Atul Shukla, Bill Lasley

Publication/Journal: Zoo Biology

Keywords: cat, estrogen, pregnancy, progesterone

2001

A comparison of sex steroid hormone excretion and metabolism by psittacine species

Authors: Julian Lee, Lisa Tell, Bill Lasley

Publication/Journal: Zoo Biology

Keywords: amazon parrot, budgerigar, estradiol, fecal steroids, testosterone

1999

Staying good while playing god – the ethics of breeding farm animals

Authors: Sandøe, P.; Nielsen, B.L.; Christensen, L.G.; Sørensen, P.

Publication/Journal: Animal Welfare

Keywords: animal welfare, breeding, ethics, genetic selection

1999

Ovarian hormone concentrations and genital swelling patterns in female chimpanzees with Norplant implants

Authors: Tammie Bettinger, Debbie Cougar, D. Rick Lee, Bill L. Lasley, Janette Wallis

Publication/Journal: Zoo Biology

Keywords: contraception, estrone, implant, levonorgestrel, pregnanediol

1997

Selected aspects of female white-faced saki (Pithecia pithecia) reproductive biology in captivity

Authors: A. Savage, B. L. Lasley, A. J. Vecchio, A. E. Miller, S. E. Shideler

Publication/Journal: Zoo Biology

Keywords: infertility, new world primate, ovarian cycle, pregnancy, puberty

1995