{"id":216457,"date":"2023-08-30T09:46:19","date_gmt":"2023-08-30T15:46:19","guid":{"rendered":"https:\/\/cincinnatizoo.wpengine.com\/?page_id=216457"},"modified":"2026-02-04T14:14:46","modified_gmt":"2026-02-04T20:14:46","slug":"imperiled-cat-signature-project","status":"publish","type":"page","link":"https:\/\/cincinnatizoo.org\/conservation\/crew\/imperiled-cat-signature-project\/","title":{"rendered":"Imperiled Cat Signature Project"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row el_id=&#8221;hide&#8221; el_class=&#8221;hide&#8221;][vc_column width=&#8221;1\/2&#8243;][vc_column_text]<\/p>\n<h2>Saving Imperiled Cats<\/h2>\n<p>[\/vc_column_text][vc_column_text]Most of the world\u2019s cat populations are declining in the wild due to habitat loss and degradation. Zoo-housed felids serve as assurance populations that can protect against species extinction and potentially allow reintroduction of zoo-born animals back into the wild. For three decades, <a title=\"CREW\" href=\"https:\/\/cincinnatizoo.org\/conservation\/crew\/\" target=\"_self\" rel=\"noopener\">CREW<\/a> scientists have been unraveling the mysteries of felid reproduction through basic, prospective, and systematic research. Findings from these studies have led to improved management, reproduction, and welfare of these imperiled species. Most recently, CREW\u2019s Imperiled Cat Signature Project has pioneered new semen freezing and artificial insemination methods, significantly improving our capacity to produce viable offspring with both freshly-collected and frozen-thawed sperm. Using our innovative ART approaches, pregnancies have been produced in multiple cat species, including the sand cat, Pallas\u2019 cat, fishing cat, ocelot, jaguar, and tiger.[\/vc_column_text][vc_column_text]<\/p>\n<p class=\"even\"><i class=\"fa fa-newspaper fa-2x first-child odd\"><\/i><a href=\"https:\/\/cincinnatizoo.wpengine.com\/category\/imperiled-cats\/\">Read recent news and stories.<\/a><\/p>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;]<div data-aos=\"fade-up\" class=\"image-block themed\"><img decoding=\"async\" data-src=\"https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2019\/04\/ocelot-1.jpg\" alt=\"ocelot\" style=\"--smush-placeholder-width: 542px; --smush-placeholder-aspect-ratio: 542\/872;max-width:400px;\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><\/div><!-- .img-block -->[\/vc_column][\/vc_row][vc_row el_id=&#8221;hide&#8221; el_class=&#8221;hide&#8221;][vc_column]<section class=\"image-carousel carousel-slider swipe aos col-span-12\">\n        <ul class=\"image-carousel__slides carousel-slides\" data-si=\"0\" data-pointer data-pointer-state=\"swipe\"><li class=\"image-carousel__slides-item carousel-slide\">\n        <figure class=\"image-carousel__slides-item__image lazyload\" style=\"background-image:inherit;\" data-bg-image=\"url(&#039;https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/sand-cat-AI-scaled.jpg&#039;)\">\n          <img decoding=\"async\" class=\"screen-reader-text lazyload\" data-src=\"https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/sand-cat-AI-scaled.jpg\" alt=\"sand cat surgery\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 2560px; --smush-placeholder-aspect-ratio: 2560\/1440;\" \/>\n        <\/figure><div class=\"image-caption\">CREW performing an artificial insemination on a sand cat<\/div><\/li><li class=\"image-carousel__slides-item carousel-slide\">\n        <figure class=\"image-carousel__slides-item__image lazyload\" style=\"background-image:inherit;\" data-bg-image=\"url(&#039;https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/snow-US-2-scaled.jpg&#039;)\">\n          <img decoding=\"async\" class=\"screen-reader-text lazyload\" data-src=\"https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/snow-US-2-scaled.jpg\" alt=\"snow leopard crew\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1920px; --smush-placeholder-aspect-ratio: 1920\/2560;\" \/>\n        <\/figure><div class=\"image-caption\">CREW performing a reproductive exam on a snow leopard using ultrasound<\/div><\/li><li class=\"image-carousel__slides-item carousel-slide\">\n        <figure class=\"image-carousel__slides-item__image lazyload\" style=\"background-image:inherit;\" data-bg-image=\"url(&#039;https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/tiger-AI-scaled.jpg&#039;)\">\n          <img decoding=\"async\" class=\"screen-reader-text lazyload\" data-src=\"https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/tiger-AI-scaled.jpg\" alt=\"Tiger AI\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1920px; --smush-placeholder-aspect-ratio: 1920\/2560;\" \/>\n        <\/figure><div class=\"image-caption\">CREW performing an artificial insemination on a tiger<\/div><\/li><li class=\"image-carousel__slides-item carousel-slide\">\n        <figure class=\"image-carousel__slides-item__image lazyload\" style=\"background-image:inherit;\" data-bg-image=\"url(&#039;https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/jag-surgery.jpg&#039;)\">\n          <img decoding=\"async\" class=\"screen-reader-text lazyload\" data-src=\"https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/jag-surgery.jpg\" alt=\"jaguar surgery\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/510;\" \/>\n        <\/figure><div class=\"image-caption\">CREW performing an artificial insemination on a jaguar<\/div><\/li><\/ul><nav class=\"image-carousel__navs carousel-controls\"><span class=\"prev-slide\" role=\"button\" aria-label=\"previous\" title=\"previous\"><img decoding=\"async\" data-src=\"\/wp-content\/themes\/source\/assets\/icons\/ui\/arrow-styled-left.svg\" alt=\"image pointing left\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\"><\/span><div class=\"image-carousel__navs-scroller\"><ul class=\"image-carousel__indices carousel-indices\"><li class=\"image-carousel__indices-item carousel-index active lazyload\" style=\"background-image:inherit;\" data-bg-image=\"url(&#039;https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/sand-cat-AI-scaled.jpg&#039;)\"><\/li><li class=\"image-carousel__indices-item carousel-index lazyload\" style=\"background-image:inherit;\" data-bg-image=\"url(&#039;https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/snow-US-2-scaled.jpg&#039;)\"><\/li><li class=\"image-carousel__indices-item carousel-index lazyload\" style=\"background-image:inherit;\" data-bg-image=\"url(&#039;https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/tiger-AI-scaled.jpg&#039;)\"><\/li><li class=\"image-carousel__indices-item carousel-index lazyload\" style=\"background-image:inherit;\" data-bg-image=\"url(&#039;https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/jag-surgery.jpg&#039;)\"><\/li><\/ul><\/div><span class=\"next-slide\" role=\"button\" aria-label=\"next\" title=\"next\"><img decoding=\"async\" data-src=\"\/wp-content\/themes\/source\/assets\/icons\/ui\/arrow-styled-right.svg\" alt=\"image pointing left\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\"><\/span><\/nav><\/section>[\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][vc_column_text]<\/p>\n<h2>Saving Imperiled Cats<\/h2>\n<p>[\/vc_column_text][vc_column_text]Most of the world\u2019s cat populations are declining due to habitat loss and degradation. Zoo-housed felids serve as assurance populations, helping prevent extinction and providing opportunities for potential reintroduction of zoo-born animals back into the wild.<\/p>\n<p>For over three decades,\u00a0<a href=\"https:\/\/cincinnatizoo.org\/conservation\/crew\/crew-scientists\/\">CREW\u00a0scientists<\/a> have been advancing the understanding of felid reproduction through systematic research. These studies have improved the management, welfare, and breeding of imperiled species.<\/p>\n<p><a title=\"Assisted reproductive technologies (ART)\" href=\"https:\/\/cincinnatizoo.org\/conservation\/crew\/imperiled-cat-signature-project\/art\/\" target=\"_blank\" rel=\"noopener\">Assisted reproductive technologies (ART)<\/a> such as artificial insemination, in vitro fertilization, embryo transfer, and cryopreservation of sperm and embryos are essential tools in addressing the conservation and management challenges of these species.<\/p>\n<p>The Imperiled Cat <em>Signature <\/em>Project has pioneered semen freezing and artificial insemination methods, enabling pregnancies in multiple cat species, including the sand cat, Pallas\u2019 cat, fishing cat, ocelot, jaguar, and tiger.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;]<section class=\"image-carousel carousel-slider swipe aos col-span-12\">\n        <ul class=\"image-carousel__slides carousel-slides\" data-si=\"0\" data-pointer data-pointer-state=\"swipe\"><li class=\"image-carousel__slides-item carousel-slide\">\n        <figure class=\"image-carousel__slides-item__image lazyload\" style=\"background-image:inherit;\" data-bg-image=\"url(&#039;https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2025\/12\/Screenshot-2025-12-12-at-2.06.09-PM.png&#039;)\">\n          <img decoding=\"async\" class=\"screen-reader-text lazyload\" data-src=\"https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2025\/12\/Screenshot-2025-12-12-at-2.06.09-PM.png\" alt=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1000px; --smush-placeholder-aspect-ratio: 1000\/742;\" \/>\n        <\/figure><div class=\"image-caption\">Ocelot kitten born through frozen-sperm artificial insemination performed by CREW at the Arizona-Sonora Desert Museum.  <\/div><\/li><li class=\"image-carousel__slides-item carousel-slide\">\n        <figure class=\"image-carousel__slides-item__image lazyload\" style=\"background-image:inherit;\" data-bg-image=\"url(&#039;https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/snow-US-2-scaled.jpg&#039;)\">\n          <img decoding=\"async\" class=\"screen-reader-text lazyload\" data-src=\"https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/snow-US-2-scaled.jpg\" alt=\"snow leopard crew\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1920px; --smush-placeholder-aspect-ratio: 1920\/2560;\" \/>\n        <\/figure><div class=\"image-caption\">CREW performing a reproductive exam on a snow leopard using ultrasound<\/div><\/li><li class=\"image-carousel__slides-item carousel-slide\">\n        <figure class=\"image-carousel__slides-item__image lazyload\" style=\"background-image:inherit;\" data-bg-image=\"url(&#039;https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/tiger-AI-scaled.jpg&#039;)\">\n          <img decoding=\"async\" class=\"screen-reader-text lazyload\" data-src=\"https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/tiger-AI-scaled.jpg\" alt=\"Tiger AI\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1920px; --smush-placeholder-aspect-ratio: 1920\/2560;\" \/>\n        <\/figure><div class=\"image-caption\">CREW performing an artificial insemination on a tiger<\/div><\/li><li class=\"image-carousel__slides-item carousel-slide\">\n        <figure class=\"image-carousel__slides-item__image lazyload\" style=\"background-image:inherit;\" data-bg-image=\"url(&#039;https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/jag-surgery.jpg&#039;)\">\n          <img decoding=\"async\" class=\"screen-reader-text lazyload\" data-src=\"https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/jag-surgery.jpg\" alt=\"jaguar surgery\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/510;\" \/>\n        <\/figure><div class=\"image-caption\">CREW performing an artificial insemination on a jaguar<\/div><\/li><li class=\"image-carousel__slides-item carousel-slide\">\n        <figure class=\"image-carousel__slides-item__image lazyload\" style=\"background-image:inherit;\" data-bg-image=\"url(&#039;https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2025\/12\/Marta-scaled.jpg&#039;)\">\n          <img decoding=\"async\" class=\"screen-reader-text lazyload\" data-src=\"https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2025\/12\/Marta-scaled.jpg\" alt=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 2560px; --smush-placeholder-aspect-ratio: 2560\/1927;\" \/>\n        <\/figure><div class=\"image-caption\">Meet Marta, CREW\u2019s life-like Amur leopard training model, created with VETIQO to help scientists practice endoscopic reproductive procedures and teach the public how assisted reproduction supports endangered cats <\/div><\/li><\/ul><nav class=\"image-carousel__navs carousel-controls\"><span class=\"prev-slide\" role=\"button\" aria-label=\"previous\" title=\"previous\"><img decoding=\"async\" data-src=\"\/wp-content\/themes\/source\/assets\/icons\/ui\/arrow-styled-left.svg\" alt=\"image pointing left\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\"><\/span><div class=\"image-carousel__navs-scroller\"><ul class=\"image-carousel__indices carousel-indices\"><li class=\"image-carousel__indices-item carousel-index active lazyload\" style=\"background-image:inherit;\" data-bg-image=\"url(&#039;https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2025\/12\/Screenshot-2025-12-12-at-2.06.09-PM.png&#039;)\"><\/li><li class=\"image-carousel__indices-item carousel-index lazyload\" style=\"background-image:inherit;\" data-bg-image=\"url(&#039;https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/snow-US-2-scaled.jpg&#039;)\"><\/li><li class=\"image-carousel__indices-item carousel-index lazyload\" style=\"background-image:inherit;\" data-bg-image=\"url(&#039;https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/tiger-AI-scaled.jpg&#039;)\"><\/li><li class=\"image-carousel__indices-item carousel-index lazyload\" style=\"background-image:inherit;\" data-bg-image=\"url(&#039;https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2023\/10\/jag-surgery.jpg&#039;)\"><\/li><li class=\"image-carousel__indices-item carousel-index lazyload\" style=\"background-image:inherit;\" data-bg-image=\"url(&#039;https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2025\/12\/Marta-scaled.jpg&#039;)\"><\/li><\/ul><\/div><span class=\"next-slide\" role=\"button\" aria-label=\"next\" title=\"next\"><img decoding=\"async\" data-src=\"\/wp-content\/themes\/source\/assets\/icons\/ui\/arrow-styled-right.svg\" alt=\"image pointing left\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\"><\/span><\/nav><\/section>[\/vc_column][\/vc_row][vc_row el_id=&#8221;hide&#8221; el_class=&#8221;hide&#8221;][vc_column]<div data-aos=\"fade-up\" class=\"image-block themed\"><img decoding=\"async\" data-src=\"https:\/\/cincinnatizoo.org\/wp-content\/uploads\/2019\/04\/ocelot-1.jpg\" alt=\"ocelot\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 542px; --smush-placeholder-aspect-ratio: 542\/872;\" \/><div class=\"image-caption\">Ocelot kitten born through frozen-sperm artificial insemination performed by CREW at the Arizona-Sonora Desert Museum.  <\/div><\/div><!-- .img-block -->[\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]<\/p>\n<h2>Current Research<\/h2>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]CREW\u2019s Imperiled Cat team advances reproductive science by developing and refining ART to conserve endangered felids. Recent and ongoing projects include:<\/p>\n<ul>\n<li>Monitoring estrus, pregnancy, and reproductive function through fecal hormone metabolite analysis <sup>1,2,3<\/sup><\/li>\n<li>Validating an in-house, automated ELISA immunoassay machine for hormone monitoring in felids using serum and saliva<\/li>\n<li>Characterizing reproductive physiology of lesser studied felids <sup>4,5<\/sup><\/li>\n<\/ul>\n<ul>\n<li>Developing reliable real time estrus detection tools to improve breeding success<sup>6<\/sup><\/li>\n<li>Validating computer-assisted semen analysis (CASA) platforms for objective, high-precision evaluation of cat sperm<\/li>\n<li>Leveraging veterinary expertise to perform comprehensive reproductive health exams that guide evidence-based breeding decisions <sup>7<\/sup><\/li>\n<li>Advancing minimally invasive approaches to artificial insemination through laparoscopy and endoscopy <sup>8,9<\/sup><\/li>\n<\/ul>\n<ul>\n<li>Optimizing ovarian synchronization protocols, enabling milestones such as the first jaguar cub born through artificial insemination<sup>10,11,12<\/sup><\/li>\n<li>Refining soy-based cryomedia to create a cleaner, safer, and more consistent method for freezing cat sperm <sup>4, 13,14<\/sup><\/li>\n<li>Creating field-ready semen collection and freezing methods, such as urethral catheterization and ultra-rapid freezing <sup>15,16<\/sup><\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;]<a class=\"button\" data-aos=\"fade-up\" href=\"https:\/\/cincinnatizoo.org\/conservation\/crew\/imperiled-cat-signature-project\/art\/\" target=\"_blank\" role=\"button\" aria-label=\"\" title=\"\">Assisted Reproductive Technologies (ART)<\/a>[\/vc_column][vc_column width=&#8221;1\/2&#8243;]<a class=\"button\" data-aos=\"fade-up\" href=\"https:\/\/cincinnatizoo.wpengine.com\/category\/imperiled-cats\/\" target=\"_blank\" role=\"button\" aria-label=\"\" title=\"\">Imperiled Cat News &amp; Stories<\/a>[\/vc_column][\/vc_row][vc_row][vc_column]<details class=\"simple-expander\" data-aos=\"fade-up\">\n        <summary>References<\/summary><div><\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\n<li>Brown, J.L. et al. (2002). <em>Reproductive endocrine responses to photoperiod and exogenous gonadotropins in the Pallas&#8217; cat.<\/em> Zoo Biology. <a href=\"https:\/\/doi.org\/10.1002\/zoo.10043\">External link<\/a><\/li>\n<li>Hall, L. et al. (2023). <em>Characterization of PGFM as a non-invasive pregnancy marker in the sand cat and Pallas\u2019 cat<\/em>. Presented at the 8th International Society of Wildlife Endocrinology Conference, Corbett National Park, India.<\/li>\n<li>Miller, A. et al. (2023). <em>Characterization of basic reproductive biology in Amur leopards using non-invasive monitoring.<\/em> Presented at the 8th Conference of the International Society of Wildlife Endocrinology, Corbett National Park, India.<\/li>\n<li>Gonz\u00e1lez, R. et al. (2023). <em>Characterization of basal seminal traits and semen cryopreservation in Canada lynx.<\/em> Theriogenology Wild. <a href=\"https:\/\/doi.org\/10.1016\/j.therwi.2023.100026\">External link<\/a><\/li>\n<li>Miller, A. et al. (2024). <em>Investigation of semen collection and cryopreservation techniques in the caracal<\/em>. Reproduction, Fertility and Development. <a href=\"https:\/\/doi.org\/10.1071\/RDv37n1Ab37\">External link<\/a><\/li>\n<li>King, E. et al. (2024). <em>Calling for Love: Using vocalizations to estimate sexual receptivity and track reproductive patterns in Amur leopards.<\/em> Poster presented at the Association of Zoos and Aquariums (AZA) Annual Conference, Calgary, Canada.<\/li>\n<li>Barnes J. (2025). <em>Reproductive endoscopic assessment and therapeutic interventions enhance diagnostic capabilities across taxa<\/em>. Platform presentation at the American Association of Zoo Veterinarians (AAZV) Annual Conference, Kansas City, Missouri.<\/li>\n<li>Conforti, V.A. et al. (2013). <em>Laparoscopic oviductal artificial insemination improves pregnancy success in exogenous gonadotropin-treated domestic cats as a model for endangered felids.\u00a0<\/em>Biology of reproduction. <a href=\"https:\/\/doi.org\/10.1095\/biolreprod.112.105353\">External link<\/a><\/li>\n<li>Swanson, W.F. (2012). <em>Laparoscopic oviductal embryo transfer and artificial insemination in felids\u2013challenges, strategies and successes.<\/em>Reproduction in Domestic Animals. <a href=\"https:\/\/doi.org\/10.1111\/rda.12069\">External link<\/a><\/li>\n<li>Swanson, W.F., (2023). <em>The challenge of assisted reproduction for conservation of wild felids \u2013 a reality check.<\/em> <a href=\"https:\/\/doi.org\/10.1016\/j.theriogenology.2022.11.018\">External link<\/a><\/li>\n<li>Barnes, J. &amp; Vansandt, L. (2025). <em>Estrous cycle manipulation in cats.<\/em>Clinical Theriogenology. <a href=\"https:\/\/doi.org\/10.58292\/CT.v17.11649\">External link<\/a><\/li>\n<li>Vansandt, L.M. et al. (2026). <em>Optimizing fixed-time laparoscopic artificial insemination in the jaguar.<\/em> Reproduction and Fertility. <a title=\"External link\" href=\"https:\/\/doi.org\/10.1530\/RAF-25-0074\" target=\"_blank\" rel=\"noopener\">External link<\/a><\/li>\n<li>Vick, M.M., et al. (2012).<em> Improved cryopreservation of domestic cat sperm in a chemically defined medium. <\/em><a href=\"https:\/\/doi.org\/10.1016\/j.theriogenology.2012.08.009\">External link<\/a><\/li>\n<li>Vansandt, L.M. et al. (2021). <em>Cross-species efficacy of a chemically-defined, soy lecithin-based cryomedium for semen banking in imperiled wild felids.<\/em> <a href=\"https:\/\/doi.org\/10.1016\/j.theriogenology.2020.10.021\">External link<\/a><\/li>\n<li>Swanson, W.F. et al. (2017). <em>Urethral catheterization and sperm vitrification for simplified semen banking in felids.<\/em>Reproduction in Domestic Animals. <a href=\"https:\/\/doi.org\/10.1111\/rda.12863\">External link<\/a><\/li>\n<li>Swanson, W. F. (2023). <em>Semen banking of wild felids for zoo vets. <\/em>Fowler\u2019s Zoo and Wild Animal Medicine Current Therapy. <a href=\"https:\/\/doi.org\/10.1016\/B978-0-323-82852-9.00108-8\">External link<\/a><\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<p><\/div><\/details>[\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row el_id=&#8221;hide&#8221; el_class=&#8221;hide&#8221;][vc_column width=&#8221;1\/2&#8243;][vc_column_text] Saving Imperiled Cats [\/vc_column_text][vc_column_text]Most of the world\u2019s cat populations are declining in the wild due to habitat loss and degradation. Zoo-housed felids serve as assurance populations that can protect against species extinction and potentially allow reintroduction of zoo-born animals back into the wild. For three decades, CREW scientists have been unraveling [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":199129,"parent":84,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-216457","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>CREW Imperiled Cat Conservation | Cincinnati Zoo &amp; Botanical Garden<\/title>\n<meta name=\"description\" content=\"Learn how CREW studies cat reproduction and genetics to help protect endangered species worldwide.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cincinnatizoo.org\/conservation\/crew\/imperiled-cat-signature-project\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CREW Imperiled Cat Conservation | Cincinnati Zoo &amp; 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