Random header image... Refresh for more!

Category — Indian Rhino

CREW Works to Enhance Fertility in White Rhinos

White rhino with calf (Photo: James Temple)

White rhino with calf (Photo: James Temple)


In September, the Zoo’s Center for Conservation and Research (CREW) was awarded a National Leadership Grant from the Institution of Museum and Library Services in support of a Rhino Assisted Reproduction Enterprise (RARE) initiative for Indian rhinos and African white rhinos. Dr. Monica Stoops will be the Project Director for the grant work and will be working in partnership with Dr. Justine O’Brien from the SeaWorld & Busch Gardens Reproductive Research Center (SWBGRRC), which includes a state-of-the-art sperm sorting and cryopreservation laboratory.  CREW will undertake the project to expand access and build capacity for African and Asian rhino reproductive care within North American zoological facilities. Eight zoos have committed to building a Rhino Assisted Reproduction Enterprise (RARE) in collaboration with CREW.  This project will help 1) contribute to the genetic management and propagation of captive Indian rhinos through artificial insemination (AI); 2) enhance southern white rhino fertility through exogenous hormone administration prior to natural breeding or AI; 3) build upon national rhino gamete rescue centers at CREW and SWBGRRC; and 4) provide collaborating facilities with individualized training and/or support in rhino assisted reproductive technology (exogenous hormone protocols, ultrasonography, endocrine analysis, AI, and sperm collection, sorting and cryopreservation).

One part of the proposed research will be to continue and expand upon a preliminary CREW investigation conducted to develop an exogenous hormone protocol to initiate reproductive activity in previously acyclic southern white rhinos. The African white rhino remains the most popular rhino species held in U.S. zoos (although we do not currently house them here in Cincinnati). Although captive breeding has been successful and a sufficient number of calves are being produced to consistently maintain the population, the proportion of breeding recommendations resulting in offspring is quite low. It is estimated that <30% of all wild born and <20% of captive born African white rhinos have reproduced in captivity. These numbers reflect a major impediment to achieving a sustainable captive breeding program for this species.

White rhino with calf at one of the partnering institutions, Lowry Park Zoo (Photo: Matthew Paulson)

White rhino with calf at one of the partnering institutions, Lowry Park Zoo (Photo: Matthew Paulson)

A primary reason for the low reproductive rate is that a vast majority of females display long periods of acyclicity. Significant progress has been made in initiating reproductive activity in acyclic white rhinos in Europe using exogenous hormones. However, many drugs used overseas are not commercially available in the United States. Therefore, it became necessary
to develop novel hormone protocols using U.S. drugs to similarly promote a resumption in reproductive activity for acyclic white rhinos.

CREW scientists, in partnership with several North American zoos, embarked on a preliminary exogenous hormone trial in which four acyclic female white rhinos were treated. Females responded by growing preovulatory follicles, but did not stand for breeding by a male and required an additional hormone to ovulate. This initial hormone protocol may be adequate should artificial insemination be performed, but CREW scientists and partner zoos are working to develop an alternative hormone protocol that will result in natural mating so that more individual rhinos and institutions will benefit. By enhancing the fertility of captive African white rhinos, CREW is helping to ensure the sustainability of this rhino population.

 

January 14, 2015   1 Comment

Meet Some New Faces at CREW

Welcoming Two New Post-Doctoral Fellows

Two new post-doctoral fellows, Dr. Lindsey Vansandt and Dr. Anne-Catherine Vanhove, were welcomed to CREW in the fall of 2014.

With funding support from the Joanie Bernard Foundation, Dr. Vansandt will be working with Dr. Bill Swanson, CREW’s Director of Animal Research. Dr. Vansandt obtained her Doctor of Veterinary Medicine degree from the University of Missouri and her Doctor of Philosophy degree from the University of Maryland (in collaboration with the Smithsonian Conservation Biology Institute). Her Ph.D. studies focused on characterization and propagation of spermatogonial stem cells in domestic cats as a model for conserving endangered cat species. Dr. Vansandt also has experience working in veterinary emergency services. At CREW, she will be conducting studies to improve the health and welfare of feral and shelter cats as well as helping to apply oviductal AI for propagation of endangered felids.

Lindsey Vansandt, DVM

Lindsey Vansandt, DVM

With funding from the Institute of Museum and Library Services (IMLS), Dr. Vanhove will be evaluating survival of plant samples in CREW’s Frozen Garden under the supervision of Dr. Valerie Pence, Director of Plant Research. Dr. Vanhove will complete the second phase of the IMLS project, focusing primarily on the survival of shoot tips and gametophytes after long-term storage in liquid nitrogen. She recently received her Ph.D. from the Division of Crop Biotechnics, Katholieke Universiteit Leuven, in Leuven, Belgium. Her thesis work with meristem culture, stress physiology, and cryopreservation makes her well suited for the IMLS project.

Anne-Catherine Vanhove

Anne-Catherine Vanhove

The University of Cincinnati/Cincinnati Zoo Connection

CREW has had a long-standing collaborative relationship with the University of Cincinnati’s (UC) Department of Biological Sciences, but today it is strengthened by two promising young scientists who split their time between CREW and UC. Corrina DeLorenzo and Megan Philpott are both enrolled in UC’s Ph.D. program under Drs. Ken Petren and Theresa Culley, respectively, but they are conducting much of their dissertation research at CREW.

Corrina earned her bachelor’s degree at Miami University, with a double major in Zoology and Environmental Science. As an undergraduate, she became involved in research evaluating the population genetics of the Italian wall lizard or “Lazarus lizard” in the Cincinnati area. After graduating, Corrina was accepted to CREW’s summer internship program, working with Dr. Erin Curry on the Polar Bear Signature Project. She was recruited into UC’s graduate program in January 2014. Since starting her Ph.D. research, Corrina has identified multiple antibodies that detect specific proteins in polar bear feces in an effort to develop a polar bear pregnancy test.

Corrina DeLorenzo

Corrina DeLorenzo

Megan received her bachelor’s degree from UC in Biology and was also an intern at the Cincinnati Museum Center, managing the Museum’s Philippine Bird Genetics project. Her Ph.D. research is part of the Plant Lab’s IMLS funded project to evaluate samples that have been stored for years in CREW’s CryoBioBank for genetic changes that might have occurred over time. In April, Megan was awarded the Botanical Society of America’s Public Policy award to attend Congressional Visits Day on Capitol Hill. There, she learned about communicating science to policy makers and met with the offices of Ohio Senators and Representatives to request their support for increased federal funding of scientific research, using CREW’s research as an example of the importance of federal funding and support. (Students supported by the UC Department of Biological Sciences, Institute of Museum and Library Services and CREW Eisenberg Fellowship.)

Megan Philpott

Megan Philpott

P&G Wildlife Conservation Scholars

In 2011, CREW established a partnership with the Ohio State University’s College of Veterinary Medicine to train veterinary students in conservation sciences with funding support from Procter & Gamble Pet Care. This past summer, two OSU veterinary students, Kelly Vollman and JaCi Johnson, were selected as P&G Wildlife Conservation Scholars.

Kelly worked with Dr. Monica Stoops analyzing urinary testosterone and glucocorticoid concentrations to determine if the pattern of excretion could be used to predict gender, parturition date and assess fetal viability during Indian rhino gestation. Kelly analyzed urine samples collected throughout seven Indian rhino pregnancies that resulted in three male and four female calves. Six of the pregnancies ended with the birth of live calves, whereas one pregnancy ended in a stillbirth, a relatively common occurrence in this rhino species. By learning more about the endocrinology of pregnancy, results from Kelly’s study will help establish physiological markers to improve pregnancy outcome in this species.

Kelly Vollman

Kelly Vollman

JaCi worked with Dr. Bill Swanson to investigate cat sperm vitrification as an alternative to standard slow freezing methods. Vitrification involves ultra-rapid cooling to avoid ice crystal formation and form a “glass” instead. For this study, JaCi collected semen from domestic cats (and one ocelot) and compared vitrification in a sucrose solution, with direct pelleting in liquid nitrogen, to slow freezing with glycerol in straws over liquid nitrogen vapor. Post-thaw sperm motility and acrosome status were similar between methods and 25% of domestic cat oocytes were fertilized following insemination with vitrified
sperm. This simplified approach to cat semen preservation may be particularly useful for field biologists working with felids in the wild.

JaCi Johnson

JaCi Johnson

November 21, 2014   No Comments

Bowling for Rhinos was a Smashing Success!

All five living species of rhinos are threatened in the wild due to habitat loss and poaching for their horns, which are worth more than their weight in gold on the black market. Poaching rates have soared sky high, but there are thousands of dedicated, passionate rangers standing in between the rhinos and the poachers – and they need our help.

Each year, the American Association of Zoo Keepers (AAZK) raises funds through Bowling for Rhinos (BFR) events held across North America to support critical rhino conservation projects in the wild. This year, the Greater Cincinnati AAZK Chapter organized its inaugural BFR fundraiser, which took place on October 11 at Stone Lanes.BFR Logo

bowler

The turnout was fantastic! More than 160 people registered to bowl and even more showed up just to take part in the festivities. Even J.J. Hoover and Logan Andrusek of the Cincinnati Reds came out to show their support!

Logan Ondrusek and JJ Hoover pose with the rhino mascot

Logan Ondrusek and JJ Hoover pose with the rhino mascot

Beyond bowling, there were plenty of other opportunities for fun and fundraising. The chapter held a silent auction and raffle and sold t-shirts, chocolate bars and shot glasses, and the bar even offered special rhino-themed drinks. The Zoo’s Sumatran rhino mascot even showed up to meet and greet the bowlers.

T-shirts for sale!

T-shirts for sale!

Bidding at the silent auction

Bidding at the silent auction

Bowlers posing with the rhino mascot

Bowlers posing with the rhino mascot

In addition to the Zoo and Stone Lanes, the event drew in several other local businesses and individuals as sponsors. A huge thank you goes out to:

  • Mac Paran
  • Riverside Topsoil
  • White Crane Tattoo
  • The Emily and Mark Frolick Foundation
  • Solid Training
  • The Wallace Group Dentistry for Today
  • Nancy Haas
  • Liquid Sasquatch Pottery
  • Listermann Brewery
  • North College Hill Chiropractic Center
  • T.J. Williams Electric Co.
  • Norwood City Schools
  • Gary’s Professional Dog Grooming
  • Mike Dulaney
  • Jeff Mitchell

All in all, the event pulled in more than $8,500! Every penny earned through BFR goes directly to field conservation efforts to protect all five endangered species of rhino. For example, in Indonesia, funds raised support Rhino Protection Units (RPUs) that safeguard Javan and Sumatran rhino populations in national parks. Dedicated wildlife rangers patrol the forests, arresting poachers and destroying snares and traps. And in Kenya, funds raised support the Lewa Conservancy’s Rhino Conservation Programme, which has been extremely successful in protecting black and white rhino populations.

Rhinos on the Lewa Conservancy

Rhinos on the Lewa Conservancy

The chapter is quite pleased with how the first annual BFR turned out. Thanks to all who showed their support. We hope you will come out and join us next year!

October 27, 2014   No Comments