Featured Research

from universities, journals, and other organizations

For the first time Iberian lynx embryos are collected and preserved

Date:
March 22, 2013
Source:
Forschungsverbund Berlin e.V. (FVB)
Summary:
A pioneering procedure in felines allows the collection of biological material from Iberian lynx females before castration. The preserved biological material of the lynxes will be used in future conservation breeding programs.

Iberian lynx, most endangered wild cat species worldwide.
Credit: Iberian Lynx Conservation Breeding Program

A pioneering procedure in felines allows the collection of biological material from Iberian lynx females before castration. The preserved biological material of the lynxes will be used in future conservation breeding programmes.

In February two Iberian lynx females who belong to the Iberian lynx Conservation Breeding Program (ILCBPS) were castrated in order to guarantee a better quality of life and prevent possible health problems.

Scientist from the Leibniz Institute for Zoo and Wildlife Research IZW, Berlin, Germany, went to the breeding centers in Spain and Portugal to obtain embryos by flushing the oviducts and freeze ovarian tissue immediately after surgery. The obtained embryos and ovarian pieces are stored in liquid nitrogen. Now they are kept at the Museo Nacional de Ciencias Naturales de Madrid (CSIC) for further usage in the breeding programme.

The specialists of the IZW performed a pioneering procedure to obtain and freeze embryos in a wildlife species. Based on their experience in the domestic cat, they developed a method for cryopreserving oocytes and embryos of wild cat species. "Seven days after mating we expected to flush embryos from the uterus. In both cases, however, oocytes and embryos were still within the oviducts. Thus, the embryo development in lynxes is slower than in domestic cats," says Prof Katarina Jewgenow from the IZW specialist team.

During two consecutive breeding seasons, "Azahar," a female lynx from the Centro Nacional de Reprodução de Lince Ibérico in Silves, Portugal, experienced problems during parturition and an emergency caesarean operation was required in each case. The Iberian Lynx Conservation Breeding Program recommended not to breed "Azahar" again. In this situation it was decided to try to preserve her genetic material by collecting embryos and freezing the ovarian cortex after removing ovaries by castration. The IZW team preserved three embryos and the ovarian cortex. "The next step we are discussing right now is to implant these embryos into a foster mother, which might be an Eurasian lynx female," comments Jewgenow.

"Saliega," the other female, is located in the Centro de Cría de el Acebuche, in Doñana, Spain. "Saliega" was the first Iberian lynx who was bred in captivity in 2005. In July 2012 she suffered from a mammary tumor after lactating her current litter. The risk of mammary tumor recidivism, her advanced age (12 years) and the fact that she already gave birth to 16 cubs during the last 8 years was the basis for the decision to castrate her as well. "From her we only flushed unfertilised eggs, thus the male was not fertile," said Natalia Mikolaewska, a doctoral student from the IZW. "Her genetic material in terms of ovarian cortex oocytes was frozen as well," comments Natalia.

The Iberian lynx is the only wild cat species listed on the IUCN Red List as critically endangered. A decade ago, less than 200 individuals were left. The remaining population is located in southern Spain.

The Leibniz Institute for Zoo and Wildlife Research (IZW) is a long-term scientific partner of the Iberian Lynx Conservation Breeding Program (ILCBPS) in Andalusia, Spain.


Story Source:

The above story is based on materials provided by Forschungsverbund Berlin e.V. (FVB). Note: Materials may be edited for content and length.


Cite This Page:

Forschungsverbund Berlin e.V. (FVB). "For the first time Iberian lynx embryos are collected and preserved." ScienceDaily. ScienceDaily, 22 March 2013. <www.sciencedaily.com/releases/2013/03/130322090751.htm>.
Forschungsverbund Berlin e.V. (FVB). (2013, March 22). For the first time Iberian lynx embryos are collected and preserved. ScienceDaily. Retrieved September 2, 2014 from www.sciencedaily.com/releases/2013/03/130322090751.htm
Forschungsverbund Berlin e.V. (FVB). "For the first time Iberian lynx embryos are collected and preserved." ScienceDaily. www.sciencedaily.com/releases/2013/03/130322090751.htm (accessed September 2, 2014).

Share This




More Plants & Animals News

Tuesday, September 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Sharks Off the Menu and on the Tourist Trail in Palau

Sharks Off the Menu and on the Tourist Trail in Palau

AFP (Sep. 2, 2014) — Tourists in Palau clamour to dive with sharks thanks to a pioneering conservation initiative -- as the island nation plans to completely ban commercial fishing in its vast ocean territory. 01:15 Video provided by AFP
Powered by NewsLook.com
We've Got Mites Living In Our Faces And So Do You

We've Got Mites Living In Our Faces And So Do You

Newsy (Aug. 30, 2014) — A new study suggests 100 percent of adult humans (those over 18 years of age) have Demodex mites living in their faces. Video provided by Newsy
Powered by NewsLook.com
Washington Wildlife Center Goes Nuts Over Baby Squirrels

Washington Wildlife Center Goes Nuts Over Baby Squirrels

Reuters - US Online Video (Aug. 30, 2014) — An animal rescue in Washington state receives an influx of orphaned squirrels, keeping workers busy as they nurse them back to health. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Experimental Ebola Drug ZMapp Cures Lab Monkeys Of Disease

Experimental Ebola Drug ZMapp Cures Lab Monkeys Of Disease

Newsy (Aug. 29, 2014) — In a new study, a promising experimental treatment for Ebola managed to cure a group of infected macaque monkeys. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins