Characteristics and in vitro fertilizing ability of giant panda (Ailuropoda melanoleuca) frozen-thawed epididymal spermatozoa obtained 4 hours postmortem: A case report
Abstract 10.1002/zoo.10133.abs When Chu-Lin, a male giant panda (studbook #249), died at Madrid Zoo, his reproductive tract was removed 4 hr postmortem and the epididymal spermatozoa were collected. Extended sperm were kept at 5°C for 4 hr, loaded into straws, and frozen for 7 min in liquid nitrogen vapor before the straws were plunged into […]
Successful artificial insemination of an Asian elephant at the National Zoological Park
For decades, attempts to breed elephants using artificial insemination (AI) have failed despite considerable efforts and the use of various approaches. However, recent advances in equipment technology and endocrine-monitoring techniques have resulted in 12 elephants conceiving by AI within a 4-year period (1998–2002). The successful AI technique employs a unique endoscope-guided catheter and transrectal ultrasound […]
Successful ovulation induction and laparoscopic intrauterine artificial insemination in the clouded leopard (Neofelis nebulosa)
Abstract 10.1002/(SICI)1098-2361(1996)15:13.3.CO;2-J Exogenous gonadotropins and a laparoscopic intrauterine artificial insemination (AI) technique were assessed for effectiveness in the clouded leopard (Neofelis nebulosa), a species difficult to breed in captivity due to severe mate incompatibility. Fourteen hormone trials using 10 female clouded leopards were performed to evaluate the ability of 50, 100, or 200 i.u. pregnant […]
Reproductive status of cheetahs (Acinonyx jubatus) in North American Zoos: The benefits of physiological surveys for strategic planning
Abstract 10.1002/zoo.1430120107.abs Under the mandate of a Species Survival Plan (SSP), reproductive status was assessed in 128 cheetahs maintained in 18 different institutions in North America. A mobile laboratory research team evaluated cheetahs using anesthesia, serial blood sampling, electroejaculation (males), and laparoscopy (females). Biomaterials were also collected for parallel studies of genetics, nutrition, and health. […]
Does the current regulation of assisted reproductive techniques in the UK safeguard animal welfare?
Reproductive medicine is one of the fastest developing fields of veterinary medicine. Regulation of veterinary-assisted reproductive technologies (ARTs) is currently divided between the Animals (Scientific Procedures) Act (1986), the Veterinary Surgeons Act (1966), and the Animal Welfare Act (2006). None of those pieces of legislation was purpose designed to protect the welfare of animals undergoing […]
Successful transfer of a Goodfellow’s tree kangaroo (Dendrolagus goodfellowi) pouch young to a yellow-footed rock wallaby (Petrogale xanthopus) surrogate
A 47-day-old orphaned Goodfellow’s tree kangaroo (Dendrolagus goodfellowi) joey was successfully cross-fostered onto a yellow-footed rock wallaby (Petrogale xanthopus). The joey was subsequently taken for hand-rearing at age 5 months. This is the first report of the cross-fostering technique, well-established in other macropods, being applied to a Dendrolagus sp. This technique can be considered as […]