References
- Bercovitz , A.B. , Czekala , N.M. and Lasley , B.L. 1978 . A new method of sex determination in monomorphic birds. . Journal of £00 Animal Medicine , 9 : 114 – 124 .
- Bercovitz , A.B. , Collins , J. , Price , P. and Tuttle , D. 1982 . Noninvasive assessment of seasonal hormone profiles in captive bald eagles . (Haliaeetus leucocephalus). Zoo Biology, , 1 : 111 – 117 .
- Bishop , C.M. and Hall , M.R. 1991 . Non‐invasive monitoring of avian reproduction by simplified faecal steroid analysis. . Journal of Zoology, London, , 224 : 649 – 668 .
- Czekala , N.M. and Lasley , B.L. 1977 . Technical note on sex determination in monomorphic birds using faecal steroid analysis. . International Zoo Yearbook, , 17 : 209 – 211 .
- Erb , L. and Bercovitz , A.B. . Faecal steroid analysis: non‐disruptive technique for psittacine endocrine studies, . Conservation of New World Parrots. Proceedings ICBP Parrot Working Group Meeting . 1980 , St Lucia. Edited by: Pasquier , R.F. pp. 65 – 71 . ICBP Tech. Publ. No. 1.
- Kasman , L.H. , Ramsay , E.C. and Lasley , B.L. 1986 . Urinary steroid evaluations to monitor ovarian function in exotic ungulates: III. Estrone sulfate and pregnanediol‐3‐glucuronide excretion in the Indian rhinoceros (Rhinoceros vnicornis) . Zoo Biology, , 5 : 355 – 361 .
- Kirkpatrick , J.F. , Bancroft , K. and Kincy , V. 1992 . Pregnancy and ovulation detection in bison (Bison bison) assessed by means of urinary and fecal steroids. . Journal of Wildlife Diseases, , 28 : 590 – 597 .
- Kubokawa , K. , Ishii , S. , Tajima , H. , Saitou , K. and Tanabe , K. 1992 . Analysis of sex steroids in feces of giant pandas. . Zoological Science, , 9 : 1017 – 1023 .
- Loskutoff , N.M. , Walker , L. , Ott‐Josun , J.E. , Raphael , B.L. and Lasley , B.L. 1986 . Urinary steroid evaluations to monitor ovarian function in exotic ungulates: II. Comparison between the giraffe (Giraffa camelopardalis) and the okapi (Okapia johnstoni) . Zoo Biology, , 5 : 331 – 338 .
- Potter , M.A. and Cockrem , J.F. 1992 . Plasma levels of sex steroids in the North Island brown kiwi (Apteryx australis mautelli) in relation to time of year and stages of breeding. . General and Comparative Endocrinology, , 87 : 416 – 424 .
- Stavy , M. , Gilbert , D. and Martin , R.D. 1979 . Routine determination of sex in monomorphic bird species using faecal steroid analysis. . International Zoo Yearbook, , 19 : 209 – 214 .
- Wasser , S.K. , Rlsler , L. and Steiner , R.A. 1988 . Excreted steroids in primate feces over the menstrual cycle and pregnancy. . Biology of Reproduction, , 39 : 862 – 872 .
- Wilkinson , L. 1988a . Sygraph , Evanston IL : Systat, Inc .
- Wilkinson , L. 19886 . Systat , Evanston IL : Systat, Inc .