Brazil scientists test frozen jaguar semen to help species

Brazil scientists test frozen jaguar semen to help species

SeattlePI.com

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JUNDIAI, Brazil (AP) — Brazilian and American scientists on Thursday tranquilized a wild-born female jaguar now living in a protected area in Sao Paulo state. They're hoping the 110-pound feline named Bianca could make history for the second time in two years.

In 2019, Bianca gave birth to the first jaguar cub ever born from artificial insemination. Now, the 8-year-old could once again advance the cause of preserving her species. That is, if all goes according to plan and becomes pregnant using semen that is frozen.

Scientists say frozen semen would be easy to transport, and so help ensure genetic diversity of jaguars whose populations are increasingly fragmented by habitat destruction, according to Lindsey Vansandt, a theriogenologist — a specialist in veterinary reproductive medicine — at the Cincinnati Zoo & Botanical Garden.

“The population sort of becomes smaller and smaller, and then you get inbreeding which has lots of bad consequences,” Vansandt told The Associated Press moments after performing the procedure on an unconscious Bianca atop a surgery table.

“If we can take sperm from one male and inseminate a female from another location, we can keep their gene flow moving and keep the population more healthy," Vansandt said.

Wildlife experts from the Cincinnati Zoo, the Federal University of Mato Grosso and the environmental organization Mata Ciliar have for years developed their insemination program for the Western Hemisphere's largest feline. They work with individuals rescued from habitat loss in the Amazon rainforest, Cerrado savanna and Pantanal wetlands, all of which have suffered a surge of deforestation and fires in recent years.

Some jaguars badly injured by blazes in the Pantanal last year required transport to specialized facilities for care....

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