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SUCCESSFUL LAPAROSCOPIC OVIDUCTAL ARTIFICIAL INSEMINATION IN THE CLOUDED LEOPARD (NEOFELIS NEBULOSA) IN THAILAND.
Journal of Zoo and Wildlife Medicine : Official Publication of the American Association of Zoo Veterinarians 2017 September
Captive breeding of clouded leopards (Neofelis nebulosa) is challenging because of mating incompatibility, high incidence of teratospermia in males, and inconsistent ovulation patterns in females. Assisted reproductive techniques, therefore, are necessary to overcome these issues and maintain the genetic diversity in the captive population. The objective was to use laparoscopic oviductal artificial insemination (AI) to breed genetically valuable females (n = 4; aged 4.5-5 yr) that were unsuccessfully paired. Fecal hormone metabolites (estrogen and progesterone) were extracted and measured by enzyme immunoassay for monitoring of ovarian activity 45 days before and 65 days after laparoscopic AI. For timed insemination, females were injected with 200 IU equine chorionic gonadotropin and 1,000 IU porcine luteinizing hormone (pLH) at the 82-hr interval. Ovarian assessment was performed by laparoscopy 44 hr after pLH administration. One nulliparous female out of four presented two ovulation sites on each ovary. The single female that had ovulated was inseminated with chilled semen collected from two males (8 × 10(6) and 2.7 × 10(6) motile spermatozoa, respectively, in each oviduct). A significant increase in fecal progesterone concentrations was observed after AI with a concentration peak (500 μg/g dry feces) detected on day 24 after pLH injection, which was then sustained for more than 45 days after the pLH injection. The delivery of two cubs occurred on day 92 after pLH. Microsatellite marker analysis determined that both cubs were sired by the same male. This is the first report of a successful oviductal AI in the clouded leopard.
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