Zobrazeno 1 - 10 of 76 pro vyhledávání: '"J K Hodges"'
1
Introduction of Foreign Female Asian Elephants (Elephas Maximus) Into an Existing Group: Behavioural Reactions and Changes in Cortisol Levels
Autor: J Schmid, M Heistermann, U Gansloßer, J K Hodges
Publikováno v: Animal Welfare. 10:357-372
The present study examined the extent to which the introduction of three female Asian elephants (aged 3, 11, and 27 years) into a group of 1.4 (1 male, 4 female) elephants at Münster zoo, Germany, affects the behaviour and urinary Cortisol levels of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6434c51a96fc7caf227a9387f93f0271
https://doi.org/10.1017/s0962728600032632
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2
Functional significance of behavioral, morphological, and endocrine correlates across the ovarian cycle in semifree ranging female Tonkean macaques
Autor: Fabienne Aujard, Michael Heistermann, J. K. Hodges, Bernard Thierry
Publikováno v: American Journal of Primatology. 46:285-309
The role of sexual displays in mating strategies and their reliability in indicating the time of ovulation has given rise to multiple explanations in nonhuman primates. In order to discriminate among hypotheses, socio-sexual behaviors were recorded i
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0baf42d5f20b6f2c6289f6fafe0395a
https://doi.org/10.1002/(sici)1098-2345(1998)46:4<285::aid-ajp2>3.0.co
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3
Concentrations of Progesterone and the 5α-Reduced Progestins, 5α-Pregnane-3,20- Dione and 3α-Hydroxy-5α-Pregnan-20-One, in Luteal Tissue and Circulating Blood and Their Relationship to Luteal Function in the African Elephant, Loxodonta africana 1
Autor: M. Heistermann, R. J. van Aarde, A Beard, J. K. Hodges
Publikováno v: Biology of Reproduction. 56:640-646
The 5 alpha-reduced metabolites 5 alpha-pregnane-3,20-dione (5 alpha-DHP) and 3 alpha-hydroxy-5 alpha-pregnan-20-one (5 alpha-P-3 alpha-OH) are the principal progestins biosynthesized by the African elephant corpus luteum. The aim of the present stud
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c28d98fa03c479894b54432cb19f3c5b
https://doi.org/10.1095/biolreprod56.3.640
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5
Pregnancy determination in the Asian elephant (Elephas maximus): A change in the plasma progesterone to 17α hydroxyprogesterone ratio
Autor: H. J. Shaw, C. A. Niemuller, J. K. Hodges
Publikováno v: Zoo Biology. 16:415-426
The measurement of circulating progesterone (P) is widely used to confirm and monitor pregnancy in the captive Asian elephant. Consistently elevated progesterone (P) concentrations for a minimum of 12 weeks can be used as a positive indication of pre
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::765d206ffd9d0e115c9e1f218ad178c8
https://doi.org/10.1002/(sici)1098-2361(1997)16:5<415::aid-zoo4>3.0.co
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6
Development of an enzyme-immunoassay (EIA) for the measurement of follicle-stimulating-hormone (FSH) in callitrichid primates using a monoclonal antibody against the human-FSH-β-subunit
Autor: J. Rosenbusch, J. K. Hodges, J. A. Dias
Publikováno v: American Journal of Primatology. 41:179-193
Despite the importance of Callitrichid primates in both biomedical and conservation research, practical and reliable immunoassays for the measurement of follicle-stimulating hormone (FSH) have not yet been described. A panel of monoclonal antibodies
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::582598e7677ed983dc2b004b479f75e7
https://doi.org/10.1002/(sici)1098-2345(1997)41:3<179::aid-ajp2>3.0.co
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7
Noninvasive monitoring of follicle development, ovulation, and corpus luteum formation in the marmoset monkey (Callithrix jacchus) by ultrasonography
Autor: A. Einspanier, A.-K. Oerke, J. K. Hodges
Publikováno v: American Journal of Primatology. 39:99-113
This is the first paper to describe ovarian changes associated with follicular growth, ovulation, and corpus luteum (CL) formation as monitored by ultrasonography in a multiovular primate, the marmoset monkey (Callithrix jacchus). Examinations were c
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::04e1347959c7089e49cc2e55f22001f8
https://doi.org/10.1002/(sici)1098-2345(1996)39:2<99::aid-ajp2>3.0.co
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8
Non-invasive monitoring of ovarian function in Asian elephants (Elephas maximus) by measurement of urinary 5 -pregnanetriol
Autor: C. A. Niemuller, H. J. Shaw, J. K. Hodges
Publikováno v: Reproduction. 99:617-625
The development of an enzymeimmunoassay for 5 beta-pregnanetriol and its use for non-invasive monitoring of reproductive cycles in Asian elephants is described. Gas chromatography-mass spectrometry (GCMS) and high performance liquid chromatography (H
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6cacc3f0b7099dcae10af7ec5170799
https://doi.org/10.1530/jrf.0.0990617
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9
Developmental Changes in Marmoset Granulosa Cell Responsiveness to Insulin-Like Growth Factor-I: Interactions with Follicle-Stimulating Hormone and Estradiol1
Autor: S E Boddy, J K Hodges, H J Shaw
Publikováno v: Biology of Reproduction. 49:568-576
The biological actions of insulin-like growth factor-I (IGF-I) on granulosa cell steroidogenesis at defined stages of preovulatory follicular development in the marmoset monkey were examined. Studies were carried out by primary cell culture of granul
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2ab33ffaad652a81bca37e5c4ac1383a
https://doi.org/10.1095/biolreprod49.3.568
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10
Reversible, long-term inhibition of ovulation with a gonadotropin-releasing hormone antagonist in the marmoset monkey (Callithrix jacchus)
Autor: J. K. Hodges, S. L. Lightman, P. G. Cottingham, Helen J. Shaw
Publikováno v: American Journal of Primatology. 26:167-178
The effects of weekly injections of a gonadotropin-releasing hormone (GnRH) antagonist (GnRHa) ([N-acetyl-DβNal1-D-pCl-Phe2-D-Phe3-D-Arg6-Phe7-Arg8D-Ala10] NH2 GnRH) on pituitary and ovarian function were examined in the marmoset monkey, Callithrix
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4877a72df31aad9abbeebaef1c8f244c
https://doi.org/10.1002/ajp.1350260303
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