Brazil scientists check frozen jaguar semen to assist species

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Brazilian and U.S. researchers conduct a synthetic insemination process on a jaguar on the Mata Ciliar Association conservation heart, in Jundiai, Brazil, Thursday, Oct. 28, 2021. According to the environmental group, the fertility program intends to develop a copy system to be examined on captive jaguars and later deliver it to wild felines whose habitats are more and more beneath risk from fires and deforestation. Credit: AP Photo/Andre Penner

Brazilian and American scientists on Thursday tranquilized a wild-born feminine jaguar now residing in a protected space in Sao Paulo state. They’re hoping the 110-pound feline named Bianca might make historical past for the second time in two years.


In 2019, Bianca gave delivery to the primary jaguar cub ever born from synthetic insemination. Now, the 8-year-old might as soon as once more advance the reason for preserving her species. That is, if all goes in keeping with plan and turns into pregnant utilizing semen that’s frozen.

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Scientists say frozen semen could be simple to move, and so assist guarantee genetic range of jaguars whose populations are more and more fragmented by habitat destruction, in keeping with Lindsey Vansandt, a theriogenologist—a specialist in veterinary reproductive medication—on 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 informed The Associated Press moments after performing the process on an unconscious Bianca atop a surgical procedure desk.

“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 stated.

Wildlife specialists from the Cincinnati Zoo, the Federal University of Mato Grosso and the environmental group Mata Ciliar have for years developed their insemination program for the Western Hemisphere’s largest feline. They work with people rescued from habitat loss within the Amazon rainforest, Cerrado savanna and Pantanal wetlands, all of which have suffered a surge of deforestation and fires lately.

Brazil scientists test frozen jaguar semen to help species
A sedated jaguar is transported from its cage to bear a synthetic insemination process on the Mata Ciliar Association conservation heart, in Jundiai, Brazil, Thursday, Oct. 28, 2021. According to the environmental group, the fertility program intends to develop a copy system to be examined on captive jaguars and later deliver it to wild felines whose habitats are more and more beneath risk from fires and deforestation. Credit: AP Photo/Andre Penner

Some jaguars badly injured by blazes within the Pantanal final yr required transport to specialised services for care. Others both died or had been displaced.

“Look what happened in the Pantanal, the Cerrado,” stated Cristina Adania, a veterinarian and coordinator of Mata Ciliar. “They are being killed before we even get to treat them, so something has to be done.”

This yr, a research printed by wild cat conservation group Panthera, the Federal University of Mato Grosso do Sul and companions estimated that almost 1,500 jaguars were killed or displaced by fire and habitat loss in Brazil’s Amazon from 2016 to 2019.

Displaced jaguars are unlikely to thrive in new environments, which will be the vary of one other territorial particular person, in keeping with Panthera. Plus, they’re unfamiliar with the place finest to seek out prey, which might depart them looking livestock, placing them in ranchers’ crosshairs.

  • Brazil scientists test frozen jaguar semen to help species
    Veterinarians intubate a jaguar in preparation for a synthetic insemination process on the Mata Ciliar Association conservation heart, in Jundiai, Brazil, Thursday, Oct. 28, 2021. According to the environmental group, the fertility program intends to develop a copy system to be examined on captive jaguars and later deliver it to wild felines whose habitats are more and more beneath risk from fires and deforestation. Credit: AP Photo/Andre Penner
  • Brazil scientists test frozen jaguar semen to help species
    A sedated jaguar is carried to a ready automobile to move him again to his habitat after present process a synthetic insemination process on the Mata Ciliar Association conservation heart, in Jundiai, Brazil, Thursday, Oct. 28, 2021. According to the environmental group, the fertility program intends to develop a copy system to be examined on captive jaguars and later deliver it to wild felines whose habitats are more and more beneath risk from fires and deforestation. Credit: AP Photo/Andre Penner
  • Brazil scientists test frozen jaguar semen to help species
    Brazilian and U.S. researchers conduct a synthetic insemination process for a jaguar on the Mata Ciliar Association conservation heart, in Jundiai, Brazil, Thursday, Oct. 28, 2021. According to the environmental group, the fertility program intends to develop a copy system to be examined on captive jaguars and later deliver it to wild felines whose habitats are more and more beneath risk from fires and deforestation. Credit: AP Photo/Andre Penner
  • Brazil scientists test frozen jaguar semen to help species
    Veterinarians intubate a jaguar in preparation for a synthetic insemination process on the Mata Ciliar Association conservation heart, in Jundiai, Brazil, Thursday, Oct. 28, 2021. According to the environmental group, the fertility program intends to develop a copy system to be examined on captive jaguars and later deliver it to wild felines whose habitats are more and more beneath risk from fires and deforestation. Credit: AP Photo/Andre Penner
  • Brazil scientists test frozen jaguar semen to help species
    A researcher holds the paw of a jaguar has it undergoes a synthetic insemination process on the Mata Ciliar Association conservation heart, in Jundiai, Brazil, Thursday, Oct. 28, 2021. According to the environmental group, the fertility program intends to develop a copy system to be examined on captive jaguars and later deliver it to wild felines whose habitats are more and more beneath risk from fires and deforestation. Credit: AP Photo/Andre Penner
  • Brazil scientists test frozen jaguar semen to help species
    A sedated jaguar is positioned in a cage after present process a synthetic insemination process on the Mata Ciliar Association conservation heart, in Jundiai, Brazil, Thursday, Oct. 28, 2021. According to the environmental group, the fertility program intends to develop a copy system to be examined on captive jaguars and later deliver it to wild felines whose habitats are more and more beneath risk from fires and deforestation. Credit: AP Photo/Andre Penner
  • Brazil scientists test frozen jaguar semen to help species
    Veterinarians intubate a jaguar in preparation for a synthetic insemination process on the Mata Ciliar Association conservation heart, in Jundiai, Brazil, Thursday, Oct. 28, 2021. According to the environmental group, the fertility program intends to develop a copy system to be examined on captive jaguars and later deliver it to wild felines whose habitats are more and more beneath risk from fires and deforestation. Credit: AP Photo/Andre Penner
  • Brazil scientists test frozen jaguar semen to help species
    A surgeon performs a synthetic insemination process on a jaguar on the Mata Ciliar Association conservation heart, in Jundiai, Brazil, Thursday, Oct. 28, 2021. According to the environmental group, the fertility program intends to develop a copy system to be examined on captive jaguars and later deliver it to wild felines whose habitats are more and more beneath risk from fires and deforestation. Credit: AP Photo/Andre Penner
  • Brazil scientists test frozen jaguar semen to help species
    A sedated jaguar is carried to an working room to bear a synthetic insemination process on the Mata Ciliar Association conservation heart, in Jundiai, Brazil, Thursday, Oct. 28, 2021. According to the environmental group, the fertility program intends to develop a copy system to be examined on captive jaguars and later deliver it to wild felines whose habitats are more and more beneath risk from fires and deforestation. Credit: AP Photo/Andre Penner
  • Brazil scientists test frozen jaguar semen to help species
    A jaguar that was rescued from unlawful captivity performs on the Mata Ciliar Association conservation heart, in Jundiai, Brazil, Thursday, Oct. 28, 2021. The affiliation treats animals which have been victims of fires, environmental disasters or traffickers, and rehabilitates the wild animals with a view to launch them to their pure habitat. Credit: AP Photo/Andre Penner
  • Brazil scientists test frozen jaguar semen to help species
    A jaguar that was rescued from unlawful captivity walks on a tree trunk on the Mata Ciliar Association conservation heart, in Jundiai, Brazil, Thursday, Oct. 28, 2021. The affiliation treats animals which have been victims of fires, environmental disasters or traffickers, and rehabilitates the wild animals with a view to launch them to their pure habitat. Credit: AP Photo/Andre Penner

The International Union for the Conservation of Nature’s Red List classifies jaguars as “near threatened” —a grade above weak—although its inhabitants is on the decline and its habitat “severely fragmented.”

Bianca was nonetheless a cub within the Amazon when she was rescued and delivered to Mata Ciliar. Like among the wild-born cats residing on the Brazilian Center for the Conservation of Neotropical Felines in Jundiai, she will’t be reintroduced to the wild, Adania stated. Another feminine jaguar on the facility, named Tabatinga, was additionally artificially inseminated on Thursday.

Unfrozen jaguar semen solely stays good for a couple of hours, Vansandt stated. Frozen semen can be utilized for years, however sometimes has a decrease success fee for felines than with people.

If Bianca’s case is profitable, it might take away the pressure and stress of transporting carnivores that weigh as a lot as 300 kilos to mate in particular person. Even when a jaguar is transported, there isn’t any assure it should get together with its would-be mate, stated Adania.

“This is good for genetic diversity, but also towards that larger goal of increasing the number of jaguars,” stated Vansandt. “The dream is to increase the numbers to a stable population.”


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