Search Results - "Bertschinger, Henk"

Effects of GnRH vaccination in wild and captive African Elephant bulls (Loxodonta africana) on reproductive organs and semen quality by Lueders, Imke, Young, Debbie, Maree, Liana, van der Horst, Gerhard, Luther, Ilse, Botha, Stephan, Tindall, Brendan, Fosgate, Geoffrey, Ganswindt, André, Bertschinger, Henk J

“…Although the African elephant (Loxodonta africana) is classified as endangered by the International Union for Conservation of Nature (IUCN), in some isolated…”
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Vaccination against GnRH as a prelude to surgical castration of horses by Birrell, John R., Schulman, Martin L., Botha, Alma E., Ganswindt, André, Fosgate, Geoffrey T., Bertschinger, Henk J.

“…Background Surgical castration is one of the most frequently performed surgeries in horses and is associated with various post‐surgical complications ranging…”
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Efficacy and safety of native and recombinant zona pellucida immunocontraceptive vaccines in donkeys by French, Hilari, Peterson, Erik, Schulman, Martin, Roth, Robyn, Crampton, Michael, Conan, Anne, Marchi, Silvia, Knobel, Darryn, Bertschinger, Henk

“…Feral and semi-feral donkeys are recognised as a problem in some world regions. The main problem associated with uncontrolled donkey populations is habitat…”
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Ovarian dysfunction associated with zona pellucida–based immunocontraceptive vaccines by Joonè, Carolynne J., Schulman, Martin L., Bertschinger, Henk J.

“…Despite more than 40 years of research into zona pellucida (ZP)–based vaccines, relatively little is known about their mechanism of action. Early research…”
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Serum antibody immunoreactivity and safety of native porcine and recombinant zona pellucida vaccines formulated with a non-Freund’s adjuvant in horses by Nolan, Margaret B., Schulman, Martin L., Botha, Alma E., Human, Anne-Marie, Roth, Robyn, Crampton, Michael C., Bertschinger, Henk J.

“…•Recombinant zona pellucida vaccination in horse mares is immunologically effective.•A non-Freund’s adjuvant is effective for zona pellucida…”
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Effects of an anti‐gonadoliberin releasing hormone vaccine on testicular, epididymal and spermatogenic development in the horse by Botha, Alma E., Schulman, Martin L., Birrell, John, Plessis, Lizette, Laver, Peter N., Soley, John, Colenbrander, Ben, Bertschinger, Henk J.

“…The effects of the GnRH vaccine Improvac® on testicular and epididymal morphometrics, histology and spermatogenesis were measured in 19 young (15–20 months)…”
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Ovarian function following immunocontraceptive vaccination of mares using native porcine and recombinant zona pellucida vaccines formulated with a non-Freund's adjuvant and anti-GnRH vaccines by Nolan, Margaret B., Bertschinger, Henk J., Roth, Robyn, Crampton, Michael, Martins, Isabela S., Fosgate, Geoffrey T., Stout, Tom A., Schulman, Martin L.

“…An important determinant in the selection of any contraceptive agent is the impact on ovarian function, both in the short and longer term. In this study,…”
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Researching immunocontraceptive vaccines with mares (Equus caballus) as both a target and model for African elephant (Loxodonta africana) cows: A review by Joonè, Carolynne J., Nolan, Margaret B., Bertschinger, Henk J., Schulman, Martin L.

“…•GnRH and ZP-based vaccines induced reversible suppression of ovarian cyclic activity in mares.•Domesticated mares provided an appropriate model for observing…”
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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 by Benavides Valades, Gabriela, Ganswindt, Andre, Annandale, Henry, Schulman, Martin L, Bertschinger, Henk J

“…In southern Africa, various options to manage elephant populations are being considered. Immunocontraception is considered to be the most ethically acceptable…”
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Social and Seasonal Factors Contribute to Shifts in Male African Elephant (Loxodonta africana) Foraging and Activity Patterns in Kruger National Park, South Africa by du Plessis, Kara, Ganswindt, Stefanie Birgit, Bertschinger, Henk, Crossey, Bruce, Henley, Michelle Deborah, Ramahlo, Mmatsawela, Ganswindt, André

“…African savannah elephants (Loxodonta africana) are well-known as ecosystem engineers with the ability to modify vegetation structure. The present study aimed…”
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Rehabilitation method affects behavior, welfare, and adaptation potential for subsequent release of orphaned white rhinoceros by Fàbregas, María C., Fosgate, Geoffrey T., Ganswindt, André, Bertschinger, Henk, Hofmeyr, Markus, Meyer, Leith C. R.

“…Poaching is the primary threat to the survival of rhinoceros’ populations. One frequent consequence of poaching is the creation of orphan calves. If found,…”
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Arterial Blood Gases and Cardiorespiratory Parameters in Etorphine-Medetomidine-Midazolam Immobilized Free-Ranging and Game-Farmed Southern White Rhinoceroses ( Ceratotherium simum simum ) Undergoing Electro-Ejaculation by Meuffels, Janine, Bertschinger, Henk, Tindall, Brendan, Pohlin, Friederike, Luther-Binoir, Ilse, Trivedi, Shweta, Boshoff, Christiaan R, Lueders, Imke

“…With the rapid loss of individuals in the wild, semen cryopreservation has gained importance to safeguard the genetic diversity of white rhinoceroses ( ). For…”
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Efficacy and Safety of Native and Recombinant Zona Pellucida Immunocontraceptive Vaccines Formulated with Non-Freund's Adjuvants in Donkeys by French, Hilari, Segabinazzi, Lorenzo, Middlebrooks, Brittany, Peterson, Erik, Schulman, Martin, Roth, Robyn, Crampton, Michael, Conan, Anne, Marchi, Silvia, Gilbert, Trevor, Knobel, Darryn, Bertschinger, Henk

“…This study aimed to test zona pellucida (ZP) vaccines’ immunocontraceptive efficacy and safety when formulated with non-Freund’s adjuvant (6% Pet Gel A and 500…”
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Cardiopulmonary Parameters and Arterial Blood Gases During Etorphine-Medetomidine-Midazolam Immobilization in Free-Ranging Black Rhinoceroses ( Diceros bicornis ) Undergoing Electro-Ejaculation-A Preliminary Study by Meuffels, Janine, Lueders, Imke, Bertschinger, Henk, Luther-Binoir, Ilse, Pohlin, Friederike, Gerber, Leandri, Tindall, Brendan

“…Conservation management interventions for the critically endangered black rhinoceros ( ) require immobilization, which offer opportunities for semen collection…”
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Seasonal changes in steroid hormone profiles, body weight, semen quality, and the reproductive tract in captive African wild dogs ( Lycaon pictus ) in South Africa by Newell-Fugate, Annie E, O. Nöthling, Johan, J. Bertschinger, Henk

“…Highlights ► Investigated reproductive seasonality in African wild dogs in South Africa. ► Androgens increase three months before improvements in other…”
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Behavioral and adrenocortical responses of captive white rhino adolescents to the introduction of a new calf by Fàbregas, María Cayetana, Ganswindt, André, Fosgate, Geoffrey T., Bertschinger, Henk J., Meyer, Leith C. R.

“…Changes in group composition are not exclusive to zoos and conservation breeding centers. The recent increase in poaching of African rhino species has…”
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Molecular detection of Babesia rossi and Hepatozoon sp. in African wild dogs ( Lycaon pictus) in South Africa by Matjila, Paul Tshepo, Leisewitz, Andrew L., Jongejan, Frans, Bertschinger, Henk J., Penzhorn, Barend L.

“…Blood specimens from wild dogs ( n = 301) were obtained from De Wildt Cheetah and Wildlife Centre (Pretoria) and five game reserves (4 in the North-West…”
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Non-lethal elephant population control methods : summary of the first workshop of the Elephant Specialist Advisory Group of South Africa by Selier, Jeanetta, Bates, Lucy A., Zitzer, Heike R., Pretorius, Yolanda, Garaï, Marion E., Delsink, Audrey, Bertschinger, Henk

“…Management interventions are necessary to control elephant numbers within fenced wildlife reserves in South Africa. Use of non-lethal control methods is…”
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LACK OF SPATIAL AND BEHAVIORAL RESPONSES TO IMMUNOCONTRACEPTION APPLICATION IN AFRICAN ELEPHANTS (LOXODONTA AFRICANA) by Delsink, Audrey K, Kirkpatrick, Jay, van Altena, JJ, Bertschinger, Henk J, Ferreira, Sam M, Slotow, Robert

“…Opinions are divided as to whether human intervention to control elephant (Loxodonta africana) population growth is desirable, partly because of elephant…”
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Unforeseen consequences of conservation management practices: case study on herding rhino as an anti‐poaching measure by Fàbregas, María C., Fosgate, Geoffrey T., Ganswindt, André, Bertschinger, Henk, Meyer, Leith C. R.

“…The current biodiversity crisis calls for effective conservation measures. However, some measures may have unforeseen negative consequences on individual…”
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