![]() ![]() ![]() ![]() These early steps reinforce the need not only for research on stem cell technologies, but also for additional research into complementary technologies of assisted reproduction in carnivores, so the widest array of research and clinical benefits can be realized. Testis xenografting has been used to produce sperm from pre-pubertal testis tissue from both cats and ferrets. ![]() Recently, our laboratory has successfully performed spermatogonial stem cell transplantation in the dog, with a recipient dog producing sperm of donor genetic origin. These techniques might therefore have application to the conservation of endangered species of carnivores, as well as to biomedical research. Techniques such as spermatogonial stem cell transplantation and testis xenografting offer new approaches to propagate genetically valuable individual males, even if they should die before producing sperm. For example, development of lines of embryonic stem cells in cats and dogs would allow for the generation of transgenic animal models, which could be used to advance both veterinary and human health. New reproductive technologies based on stem cells offer several potential benefits to carnivore species. ![]()
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