March 18, 2013
Barbary sheep in Tennoji Zoo. Photo by: Kuribo.
"We explored the feasibility of assisted reproduction in captive aoudad females using non-traditional techniques, in order to obtain the best results using the minimum possible number of animals," the researchers write.
The scientists worked with five Barbary sheep at Leon's Zoological Park in Mexico. They caused the females to produce eggs by stimulating hormones and then obtained the eggs via surgery. Embryos were frozen using a device dubbed Cryotop®.
"Considering the uncertainty of the conservation status of the population of aoudad subspecies in situ and the possible need for intensive actions for the recovery of the natural populations in the near future, this study established the basis of a successful protocol that can help in intensive actions for its conservation," the researchers write.
They recommend new surveys of Barbary sheep in Africa to determine the state of the wild population and a willingness to use assisted reproductive techniques in order to boost the species' numbers if necessary.
CITATION: López–Saucedo, J., Ramón-Ugalde, J. P., Barroso-Padilla, J. J., Gutiérrez-Gutiérrez, A. M., Fierro, R., Piña-Aguilar, R. E. 2013. Superovulation, in vivo embryo recovery and cryopreservation for Aoudad (Ammotragus lervia) females using osmotic pumps and vitrification: a preliminary experience and its implications for conservation. Tropical Conservation Science Vol. 6(1):149-157.
Scientists clone extinct frog that births young from its mouth
(03/18/2013) Australian scientists have produced cloned embryos of an extinct species of frog known for its strange reproductive behavior, reports the University of New South Wales.
Geneticists discover distinct lion group in squalid conditions
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Photos: one of the world's rarest turtles hatches at the Bronx Zoo
(12/21/2012) Turtle conservationists received some good news this week when five critically endangered Chinese yellow-headed box turtles hatched at Wildlife Conservation Society’s Bronx Zoo.