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Volumn 10, Issue , 2012, Pages

Non-invasive assessment of the reproductive cycle in free-ranging female African elephants (Loxodonta africana) treated with a gonadotropin-releasing hormone (GnRH) vaccine for inducing anoestrus

Author keywords

African elephant cows; Ecological effects; Faecal progestagen metabolites; GnRH immunocontraception; Non invasive monitoring; Oestrous cycle

Indexed keywords

CONTRACEPTIVE AGENT; GESTAGEN; GONADORELIN; GONADORELIN VACCINE; IMPROVAC; UNCLASSIFIED DRUG;

EID: 84865281331     PISSN: None     EISSN: 14777827     Source Type: Journal    
DOI: 10.1186/1477-7827-10-63     Document Type: Article
Times cited : (24)

References (63)
  • 3
    • 21244499662 scopus 로고    scopus 로고
    • Population dynamics of elephants re-introduced to small fenced reserves in South Africa
    • Slotow R, Garaï ME, Reilly B, Page B, Carr RD. Population dynamics of elephants re-introduced to small fenced reserves in South Africa. S Afr J Wildl Res 2005, 35:23-32.
    • (2005) S Afr J Wildl Res , vol.35 , pp. 23-32
    • Slotow, R.1    Garaï, M.E.2    Reilly, B.3    Page, B.4    Carr, R.D.5
  • 4
    • 34748895601 scopus 로고    scopus 로고
    • Review of contraception in ungulate species
    • 10.1002/zoo.20154, 19360583
    • Patton ML, Jöchle W, Penfold LM. Review of contraception in ungulate species. Zoo Biol 2007, 26:311-326. 10.1002/zoo.20154, 19360583.
    • (2007) Zoo Biol , vol.26 , pp. 311-326
    • Patton, M.L.1    Jöchle, W.2    Penfold, L.M.3
  • 5
    • 0035859099 scopus 로고    scopus 로고
    • African elephants and contraception
    • Pimm SL, Van Aarde RJ. African elephants and contraception. Nature 2001, 411:766.
    • (2001) Nature , vol.411 , pp. 766
    • Pimm, S.L.1    Van Aarde, R.J.2
  • 6
    • 33846001641 scopus 로고    scopus 로고
    • Immunocontraception of mammalian wildlife: ecological and immunogenetic issues
    • 10.1530/REP-06-0037, 17127742
    • Cooper DW, Larsen E. Immunocontraception of mammalian wildlife: ecological and immunogenetic issues. Reproduction 2006, 132:821-828. 10.1530/REP-06-0037, 17127742.
    • (2006) Reproduction , vol.132 , pp. 821-828
    • Cooper, D.W.1    Larsen, E.2
  • 8
    • 0023556261 scopus 로고
    • Rutting behaviour In African elephants: the phenomenon of musth
    • Poole JH. Rutting behaviour In African elephants: the phenomenon of musth. Behaviour 1987, 102:283-316.
    • (1987) Behaviour , vol.102 , pp. 283-316
    • Poole, J.H.1
  • 10
    • 0034896635 scopus 로고    scopus 로고
    • Non-invasive stress and reproductive measures of social and ecological pressures in free-ranging African elephants
    • Foley CAH, Papageorge S, Wasser SK. Non-invasive stress and reproductive measures of social and ecological pressures in free-ranging African elephants. Conserv Biol 2001, 15:1134-1142.
    • (2001) Conserv Biol , vol.15 , pp. 1134-1142
    • Foley, C.A.H.1    Papageorge, S.2    Wasser, S.K.3
  • 11
    • 33847633972 scopus 로고    scopus 로고
    • The impact of ecological variability on the reproductive endocrinology of wild female African elephants
    • 10.1016/j.yhbeh.2006.12.013, 17320085
    • Wittemyer G, Ganswindt A, Hodges K. The impact of ecological variability on the reproductive endocrinology of wild female African elephants. Horm Behav 2007, 51:346-354. 10.1016/j.yhbeh.2006.12.013, 17320085.
    • (2007) Horm Behav , vol.51 , pp. 346-354
    • Wittemyer, G.1    Ganswindt, A.2    Hodges, K.3
  • 12
    • 0023968558 scopus 로고
    • Ovarian function in the elephant: luteinizing hormone and progesterone cycles in African and Asian elephants
    • 10.1095/biolreprod38.2.309, 3358979
    • Plotka ED, Seal US, Zarembka FR, Simmons LG, Teare A, Phillips LG, Hinshaw KC, Wood DG. Ovarian function in the elephant: luteinizing hormone and progesterone cycles in African and Asian elephants. Biol Reprod 1988, 38:309-314. 10.1095/biolreprod38.2.309, 3358979.
    • (1988) Biol Reprod , vol.38 , pp. 309-314
    • Plotka, E.D.1    Seal, U.S.2    Zarembka, F.R.3    Simmons, L.G.4    Teare, A.5    Phillips, L.G.6    Hinshaw, K.C.7    Wood, D.G.8
  • 13
    • 0034555252 scopus 로고    scopus 로고
    • Reproductive endocrine monitoring of elephants: an essential tool for assisting captive management
    • Brown JL. Reproductive endocrine monitoring of elephants: an essential tool for assisting captive management. Zoo Biol 2000, 19:347-367.
    • (2000) Zoo Biol , vol.19 , pp. 347-367
    • Brown, J.L.1
  • 14
    • 0020860966 scopus 로고
    • Oestrus behaviour and female choice in the African elephant
    • Moss CJ. Oestrus behaviour and female choice in the African elephant. Behaviour 1983, 86:167-196.
    • (1983) Behaviour , vol.86 , pp. 167-196
    • Moss, C.J.1
  • 15
    • 0021557647 scopus 로고
    • Seasonal herd dynamics of a savanna elephant population
    • Western D, Lindsay WK. Seasonal herd dynamics of a savanna elephant population. Afr J Ecol 1984, 22:229-244.
    • (1984) Afr J Ecol , vol.22 , pp. 229-244
    • Western, D.1    Lindsay, W.K.2
  • 17
    • 34547599816 scopus 로고    scopus 로고
    • Megaparks for metapopulations: addressing the causes of locally high elephant numbers in southern Africa
    • Van Aarde RJ, Jackson TP. Megaparks for metapopulations: addressing the causes of locally high elephant numbers in southern Africa. Biol Conserv 2007, 134:289-297.
    • (2007) Biol Conserv , vol.134 , pp. 289-297
    • Van Aarde, R.J.1    Jackson, T.P.2
  • 18
    • 33947173746 scopus 로고    scopus 로고
    • Regulation of a small, discrete African elephant population through immunocontraception in the Makalali Conservancy, Limpopo, South Africa
    • Delsink AK, van Altena JJ, Grobler D, Bertschinger H, Kirkpatrick J, Slotow R. Regulation of a small, discrete African elephant population through immunocontraception in the Makalali Conservancy, Limpopo, South Africa. S Afr J Sci 2006, 102:403-405.
    • (2006) S Afr J Sci , vol.102 , pp. 403-405
    • Delsink, A.K.1    van Altena, J.J.2    Grobler, D.3    Bertschinger, H.4    Kirkpatrick, J.5    Slotow, R.6
  • 19
    • 84861770403 scopus 로고    scopus 로고
    • Faecal 20-oxo-pregnane concentrations in free-ranging African elephants (Loxodonta africana) treated with porcine zona pellucida vaccine
    • 10.1016/j.theriogenology.2012.01.023, 22444560
    • Ahlers MJ, Ganswindt A, Münscher S, Bertschinger HJ. Faecal 20-oxo-pregnane concentrations in free-ranging African elephants (Loxodonta africana) treated with porcine zona pellucida vaccine. Theriogenology 2012, 78:77-85. 10.1016/j.theriogenology.2012.01.023, 22444560.
    • (2012) Theriogenology , vol.78 , pp. 77-85
    • Ahlers, M.J.1    Ganswindt, A.2    Münscher, S.3    Bertschinger, H.J.4
  • 21
    • 0033660436 scopus 로고    scopus 로고
    • Immunocontraception of white-tailed deer with GnRH vaccine
    • 10.1111/j.8755-8920.2000.440503.x, 11125787
    • Miller LA, Johns BE, Killian GJ. Immunocontraception of white-tailed deer with GnRH vaccine. Am J Reprod Immunol 2000, 44:266-274. 10.1111/j.8755-8920.2000.440503.x, 11125787.
    • (2000) Am J Reprod Immunol , vol.44 , pp. 266-274
    • Miller, L.A.1    Johns, B.E.2    Killian, G.J.3
  • 22
    • 22844444308 scopus 로고    scopus 로고
    • Vaccines for the control of reproduction - status in mammals, and aspects of comparative interest; progress in fish vaccinology
    • Delves PJ, Roitt IM. Vaccines for the control of reproduction - status in mammals, and aspects of comparative interest; progress in fish vaccinology. Dev Biol (Basel) 2005, 121:265-273.
    • (2005) Dev Biol (Basel) , vol.121 , pp. 265-273
    • Delves, P.J.1    Roitt, I.M.2
  • 23
    • 33749440868 scopus 로고    scopus 로고
    • Influence of immunization against GnRH on reproductive cyclicity and estrous behavior in the mare
    • 10.1016/j.theriogenology.2006.04.038, 16780942
    • Imboden I, Janett F, Burger D, Crowe MA, Hässig M, Thun R. Influence of immunization against GnRH on reproductive cyclicity and estrous behavior in the mare. Theriogenology 2006, 66:1866-1875. 10.1016/j.theriogenology.2006.04.038, 16780942.
    • (2006) Theriogenology , vol.66 , pp. 1866-1875
    • Imboden, I.1    Janett, F.2    Burger, D.3    Crowe, M.A.4    Hässig, M.5    Thun, R.6
  • 24
    • 67749133557 scopus 로고    scopus 로고
    • Suppression of testicular function and sexual behavior by vaccination against GnRH (EquityTM) in the adult stallion
    • 10.1016/j.anireprosci.2008.11.011, 19128902
    • Janett F, Stump R, Burger D, Thun R. Suppression of testicular function and sexual behavior by vaccination against GnRH (EquityTM) in the adult stallion. Anim Reprod Sci 2009, 115:88-102. 10.1016/j.anireprosci.2008.11.011, 19128902.
    • (2009) Anim Reprod Sci , vol.115 , pp. 88-102
    • Janett, F.1    Stump, R.2    Burger, D.3    Thun, R.4
  • 25
    • 33645463394 scopus 로고    scopus 로고
    • Immunocontraception of Florida feral swine with a single-dose GnRH vaccine
    • 10.1111/j.1600-0897.2006.00379.x, 16635212
    • Killian G, Miller L, Rhyan J, Doten H. Immunocontraception of Florida feral swine with a single-dose GnRH vaccine. Am J Reprod Immunol 2006, 55:378-384. 10.1111/j.1600-0897.2006.00379.x, 16635212.
    • (2006) Am J Reprod Immunol , vol.55 , pp. 378-384
    • Killian, G.1    Miller, L.2    Rhyan, J.3    Doten, H.4
  • 26
    • 34547851899 scopus 로고    scopus 로고
    • GonaCon™, a Versatile GnRH Contraceptive for a Large Variety of Pest Animal Problems
    • Davis: University of California, Trimm RM, Gorenzel WP
    • Miller LA, Rhyan J, Killian G. GonaCon™, a Versatile GnRH Contraceptive for a Large Variety of Pest Animal Problems. Proceedings of the 21st Vertebrate Pest Conference: 1-4 March 2004; Visalia 2004, 269-273. Davis: University of California, Trimm RM, Gorenzel WP.
    • (2004) Proceedings of the 21st Vertebrate Pest Conference: 1-4 March 2004; Visalia , pp. 269-273
    • Miller, L.A.1    Rhyan, J.2    Killian, G.3
  • 28
  • 30
    • 78751706594 scopus 로고    scopus 로고
    • Prospects for managing African elephant population growth by immunocontraception: a review
    • Perdock AA, De Boer WF, Stout TAE. Prospects for managing African elephant population growth by immunocontraception: a review. Pachyderm 2007, 42:1-11.
    • (2007) Pachyderm , vol.42 , pp. 1-11
    • Perdock, A.A.1    De Boer, W.F.2    Stout, T.A.E.3
  • 31
    • 0020475020 scopus 로고
    • Effect of immunological castration on sexual and production characteristics in male cattle
    • Robertson IS, Fraser HM, Innes GM, Jones AS. Effect of immunological castration on sexual and production characteristics in male cattle. Vet Rec 1982, 111:529-531.
    • (1982) Vet Rec , vol.111 , pp. 529-531
    • Robertson, I.S.1    Fraser, H.M.2    Innes, G.M.3    Jones, A.S.4
  • 32
    • 13644253196 scopus 로고    scopus 로고
    • Contraception of bison by GnRH vaccine: a possible means of decreasing transmission of brucellosis in bison
    • Miller LA, Rhyan JC, Diw M. Contraception of bison by GnRH vaccine: a possible means of decreasing transmission of brucellosis in bison. J Wild Dis 2004, 40:724-729.
    • (2004) J Wild Dis , vol.40 , pp. 724-729
    • Miller, L.A.1    Rhyan, J.C.2    Diw, M.3
  • 33
    • 77956067859 scopus 로고    scopus 로고
    • Vaccination against GnRH may suppress aggressive behaviour and musth in African elephant (Loxodonta africana) bulls - a pilot study
    • De Nys HM, Bertschinger HJ, Turkstra JA, Colenbrander B, Palme R, Human AM. Vaccination against GnRH may suppress aggressive behaviour and musth in African elephant (Loxodonta africana) bulls - a pilot study. J S Afr Vet Assoc 2010, 81:8-15.
    • (2010) J S Afr Vet Assoc , vol.81 , pp. 8-15
    • De Nys, H.M.1    Bertschinger, H.J.2    Turkstra, J.A.3    Colenbrander, B.4    Palme, R.5    Human, A.M.6
  • 35
    • 0000070019 scopus 로고
    • Aspects of reproduction in the African elephant, Loxodonta africana
    • Laws RM. Aspects of reproduction in the African elephant, Loxodonta africana. J Reprod Fert 1969, Supplement 6:193-217.
    • (1969) J Reprod Fert , vol.Supplement 6 , pp. 193-217
    • Laws, R.M.1
  • 37
    • 0001937815 scopus 로고
    • Veld types of South Africa
    • Pretoria: Department of Agricultural Technical Services, Botanical ResearchInstitute, 2, Volume No. 40
    • Acocks JPH. Veld types of South Africa. Memoirs of the botanical survey of South Africa 1975, 1-128. Pretoria: Department of Agricultural Technical Services, Botanical ResearchInstitute, 2, Volume No. 40.
    • (1975) Memoirs of the botanical survey of South Africa , pp. 1-128
    • Acocks, J.P.H.1
  • 38
    • 0003123110 scopus 로고    scopus 로고
    • Getting to know a population
    • Nairobi: African Wildlife Foundation, Kangwana K, The AWF series of handbooks on techniques in African wildlife ecology, Volume 7
    • Moss CJ. Getting to know a population. Studying elephants 1996, 58-74. Nairobi: African Wildlife Foundation, Kangwana K, The AWF series of handbooks on techniques in African wildlife ecology, Volume 7.
    • (1996) Studying elephants , pp. 58-74
    • Moss, C.J.1
  • 41
    • 84868208774 scopus 로고    scopus 로고
    • Veterinary problems of geographical concern
    • Iowa: Blackwell Publishing, Fowler ME, Mikota SK
    • Mikota SK, Fowler ME. Veterinary problems of geographical concern. Biology, Medicine, and Surgery of Elephants 2006, 439-474. Iowa: Blackwell Publishing, Fowler ME, Mikota SK.
    • (2006) Biology, Medicine, and Surgery of Elephants , pp. 439-474
    • Mikota, S.K.1    Fowler, M.E.2
  • 42
    • 0016235113 scopus 로고
    • Observational study of behavior: sampling methods
    • Altmann J. Observational study of behavior: sampling methods. Behavior 1974, 49(3):227-267.
    • (1974) Behavior , vol.49 , Issue.3 , pp. 227-267
    • Altmann, J.1
  • 43
    • 27544454179 scopus 로고    scopus 로고
    • Behavioural indices of estrus in a group of captive African elephants (Loxodonta africana)
    • Ortolani A, Leong K, Graham L, Savage A. Behavioural indices of estrus in a group of captive African elephants (Loxodonta africana). Zoo Biol 2005, 24:311-329.
    • (2005) Zoo Biol , vol.24 , pp. 311-329
    • Ortolani, A.1    Leong, K.2    Graham, L.3    Savage, A.4
  • 44
    • 0032993473 scopus 로고    scopus 로고
    • Patterns of urinary and fecal steroid excretion during the ovarian cycle and pregnancy in the African elephant (Loxodonta africana)
    • 10.1006/gcen.1999.7287, 10375466
    • Fieβ M, Heistermann M, Hodges JK. Patterns of urinary and fecal steroid excretion during the ovarian cycle and pregnancy in the African elephant (Loxodonta africana). Gen Comp Endocrinol 1999, 115:76-89. 10.1006/gcen.1999.7287, 10375466.
    • (1999) Gen Comp Endocrinol , vol.115 , pp. 76-89
    • Fieß, M.1    Heistermann, M.2    Hodges, J.K.3
  • 45
    • 0029986935 scopus 로고    scopus 로고
    • Excretory fate of estradiol and progesterone in the African elephant (Loxodonta africana) and patterns of fecal steroid concentrations throughout the estrous cycle
    • 10.1006/gcen.1996.0067, 8998970
    • Wasser SK, Papageorge S, Foley C, Brown JL. Excretory fate of estradiol and progesterone in the African elephant (Loxodonta africana) and patterns of fecal steroid concentrations throughout the estrous cycle. Gen Comp Endocr 1996, 102:255-262. 10.1006/gcen.1996.0067, 8998970.
    • (1996) Gen Comp Endocr , vol.102 , pp. 255-262
    • Wasser, S.K.1    Papageorge, S.2    Foley, C.3    Brown, J.L.4
  • 46
    • 77950956880 scopus 로고    scopus 로고
    • Endocrine correlates of musth and the impact of ecological and social factors in free-ranging African elephants (Loxodonta africana)
    • 10.1016/j.yhbeh.2010.02.009, 20188104
    • Ganswindt A, Muenscher S, Henley M, Henley S, Heistermann M, Palme R, Thompson P, Bertschinger H. Endocrine correlates of musth and the impact of ecological and social factors in free-ranging African elephants (Loxodonta africana). Horm Behav 2010, 57:506-514. 10.1016/j.yhbeh.2010.02.009, 20188104.
    • (2010) Horm Behav , vol.57 , pp. 506-514
    • Ganswindt, A.1    Muenscher, S.2    Henley, M.3    Henley, S.4    Heistermann, M.5    Palme, R.6    Thompson, P.7    Bertschinger, H.8
  • 47
    • 77958567503 scopus 로고    scopus 로고
    • Concentrations of faecal glucocorticoid metabolites in physically injured free-ranging African elephants Loxodonta africana
    • Ganswindt A, Muenscher S, Henley M, Palme R, Thompson P, Bertschinger H. Concentrations of faecal glucocorticoid metabolites in physically injured free-ranging African elephants Loxodonta africana. Wild Biol 2010, 16:323-332.
    • (2010) Wild Biol , vol.16 , pp. 323-332
    • Ganswindt, A.1    Muenscher, S.2    Henley, M.3    Palme, R.4    Thompson, P.5    Bertschinger, H.6
  • 48
    • 44949184880 scopus 로고    scopus 로고
    • Behavioural and endocrinological parameters of female African and Asian elephants
    • Szdzuy K, Dehnhard M, Strauss G, Eulenberger K, Hofer H. Behavioural and endocrinological parameters of female African and Asian elephants. Int Zoo Yearb 2006, 40:41-50.
    • (2006) Int Zoo Yearb , vol.40 , pp. 41-50
    • Szdzuy, K.1    Dehnhard, M.2    Strauss, G.3    Eulenberger, K.4    Hofer, H.5
  • 49
    • 0036244259 scopus 로고    scopus 로고
    • Assessment of testicular endocrine function in captive African elephants by measurement of urinary and faecal androgens
    • Ganswindt A, Heistermann M, Borragan S, Hodges JK. Assessment of testicular endocrine function in captive African elephants by measurement of urinary and faecal androgens. Zoo Biol 2002, 21:27-36.
    • (2002) Zoo Biol , vol.21 , pp. 27-36
    • Ganswindt, A.1    Heistermann, M.2    Borragan, S.3    Hodges, J.K.4
  • 50
    • 0032748563 scopus 로고    scopus 로고
    • Hormone secretion in the Asian elephant (Elephas maximus): characterization of ovulatory and anovulatory luteinizing hormone surges
    • 10.1095/biolreprod61.5.1294, 10529277
    • Brown JL, Schmitt DL, Bellem A, Graham LH, Lehnher J. Hormone secretion in the Asian elephant (Elephas maximus): characterization of ovulatory and anovulatory luteinizing hormone surges. Biol Reprod 1999, 61:1294-1299. 10.1095/biolreprod61.5.1294, 10529277.
    • (1999) Biol Reprod , vol.61 , pp. 1294-1299
    • Brown, J.L.1    Schmitt, D.L.2    Bellem, A.3    Graham, L.H.4    Lehnher, J.5
  • 51
    • 0035568718 scopus 로고    scopus 로고
    • Comparative analysis of gonadal and adrenal activity in the black and white rhinoceros in North America by non-invasive endocrine monitoring
    • Brown JL, Bellem AC, Fouraker M, Wildt DE, Roth TL. Comparative analysis of gonadal and adrenal activity in the black and white rhinoceros in North America by non-invasive endocrine monitoring. Zoo Biol 2001, 20:463-486.
    • (2001) Zoo Biol , vol.20 , pp. 463-486
    • Brown, J.L.1    Bellem, A.C.2    Fouraker, M.3    Wildt, D.E.4    Roth, T.L.5
  • 52
    • 0032582592 scopus 로고    scopus 로고
    • Endocrinology of the ovarian cycle and pregnancy in the Asian (Elephas maximus) and African (Loxodonta africana) elephant
    • 10.1016/S0378-4320(98)00123-7, 9835363
    • Hodges JK. Endocrinology of the ovarian cycle and pregnancy in the Asian (Elephas maximus) and African (Loxodonta africana) elephant. Anim Reprod Sci 1998, 53:3-18. 10.1016/S0378-4320(98)00123-7, 9835363.
    • (1998) Anim Reprod Sci , vol.53 , pp. 3-18
    • Hodges, J.K.1
  • 53
    • 79958092578 scopus 로고    scopus 로고
    • Using a simplified field progestagen method to assess ovarian activity in female African elephants
    • Freeman EW, Meyer JM, Putman S, Schulte BA, Brown JL. Using a simplified field progestagen method to assess ovarian activity in female African elephants. Biol Conserv 2011, 144:2105-2111.
    • (2011) Biol Conserv , vol.144 , pp. 2105-2111
    • Freeman, E.W.1    Meyer, J.M.2    Putman, S.3    Schulte, B.A.4    Brown, J.L.5
  • 55
    • 0032582764 scopus 로고    scopus 로고
    • Chemical signals in the reproduction of Asian (Elephas maximus) and African (Loxodonta africana) elephants
    • 10.1016/S0378-4320(98)00124-9, 9835364
    • Rasmussen LEL, Schulte BA. Chemical signals in the reproduction of Asian (Elephas maximus) and African (Loxodonta africana) elephants. Anim Reprod Sci 1998, 53:19-34. 10.1016/S0378-4320(98)00124-9, 9835364.
    • (1998) Anim Reprod Sci , vol.53 , pp. 19-34
    • Rasmussen, L.E.L.1    Schulte, B.A.2
  • 56
    • 0034770279 scopus 로고    scopus 로고
    • The demography of an African elephant (Loxodonta africana) population in Amboseli, Kenya
    • Moss CJ. The demography of an African elephant (Loxodonta africana) population in Amboseli, Kenya. J Zool 2001, 255:145-156.
    • (2001) J Zool , vol.255 , pp. 145-156
    • Moss, C.J.1
  • 57
    • 77954577580 scopus 로고    scopus 로고
    • Influence of dominance status on adrenal activity and ovarian cyclicity status in captive African elephants
    • Proctor CM, Freeman EW, Brown JL. Influence of dominance status on adrenal activity and ovarian cyclicity status in captive African elephants. Zoo Biol 2010, 29:168-178.
    • (2010) Zoo Biol , vol.29 , pp. 168-178
    • Proctor, C.M.1    Freeman, E.W.2    Brown, J.L.3
  • 58
    • 84855186420 scopus 로고    scopus 로고
    • Assessment of estrus cyclicity in the Asian elephant (Elephas maximus) by measurement of fecal progesterone metabolite 5α-P-3OH, using a non-invasive assay
    • 10.1016/j.ygcen.2011.10.004, 22033222
    • Ghosal R, Kalaivanan N, Sukumar R, Seshagiri PB. Assessment of estrus cyclicity in the Asian elephant (Elephas maximus) by measurement of fecal progesterone metabolite 5α-P-3OH, using a non-invasive assay. Gen Comp Endocr 2012, 175:100-108. 10.1016/j.ygcen.2011.10.004, 22033222.
    • (2012) Gen Comp Endocr , vol.175 , pp. 100-108
    • Ghosal, R.1    Kalaivanan, N.2    Sukumar, R.3    Seshagiri, P.B.4
  • 59
    • 1842686237 scopus 로고    scopus 로고
    • Comparative endocrinology of cycling and non-cycling Asian (Elephas maximus) and African (Loxodonta africana) elephants
    • 10.1016/j.ygcen.2004.01.013, 15081836
    • Brown JL, Walker SL, Moeller T. Comparative endocrinology of cycling and non-cycling Asian (Elephas maximus) and African (Loxodonta africana) elephants. Gen Comp Endocr 2004, 136:360-370. 10.1016/j.ygcen.2004.01.013, 15081836.
    • (2004) Gen Comp Endocr , vol.136 , pp. 360-370
    • Brown, J.L.1    Walker, S.L.2    Moeller, T.3
  • 60
    • 60249083840 scopus 로고    scopus 로고
    • Social factors influence ovarian acyclicity in captive African elephants (Loxodonta africana)
    • 10.1002/zoo.20187, 19358314
    • Freeman EW, Guagnano G, Olson D, Keele M, Brown JL. Social factors influence ovarian acyclicity in captive African elephants (Loxodonta africana). Zoo Biol 2009, 28:1-15. 10.1002/zoo.20187, 19358314.
    • (2009) Zoo Biol , vol.28 , pp. 1-15
    • Freeman, E.W.1    Guagnano, G.2    Olson, D.3    Keele, M.4    Brown, J.L.5
  • 61
    • 33847215158 scopus 로고    scopus 로고
    • Timing of conceptions and parturitions in relation to NDVI variability in free-ranging African elephant
    • Wittemyer G, Rasmussen HB, Douglas-Hamilton I. Timing of conceptions and parturitions in relation to NDVI variability in free-ranging African elephant. Ecography 2007, 30:42-50.
    • (2007) Ecography , vol.30 , pp. 42-50
    • Wittemyer, G.1    Rasmussen, H.B.2    Douglas-Hamilton, I.3
  • 62
    • 0034530295 scopus 로고    scopus 로고
    • Temporary ovarian inactivity in elephants: relationship to status and time outside
    • 10.1016/S0031-9384(00)00316-4, 11134694
    • Schulte BA, Feldman E, Lambert R, Oliver R, Hess DL. Temporary ovarian inactivity in elephants: relationship to status and time outside. Physiol Behav 2000, 71:123-131. 10.1016/S0031-9384(00)00316-4, 11134694.
    • (2000) Physiol Behav , vol.71 , pp. 123-131
    • Schulte, B.A.1    Feldman, E.2    Lambert, R.3    Oliver, R.4    Hess, D.L.5
  • 63
    • 4544329733 scopus 로고    scopus 로고
    • Survey of the reproductive cyclicity status of Asian and African elephants in North America
    • Brown JL, Olson D, Keele M, Freeman EW. Survey of the reproductive cyclicity status of Asian and African elephants in North America. Zoo Biol 2004, 23:309-321.
    • (2004) Zoo Biol , vol.23 , pp. 309-321
    • Brown, J.L.1    Olson, D.2    Keele, M.3    Freeman, E.W.4


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