| sperm collection and cryopreservation for threatened newt species. | the aims of this project were to transfer hormone-induced spermiation and sperm cryopreservation protocols developed in the model salamander species, ambystoma tigrinum, to three threatened newt species. additionally, we tested if supplementation with trehalose or thawing at different temperatures impacts post-thaw sperm parameters. hormone stimulation protocols were applied to male notophthalmus meridionalis (n = 10), neurergus kaiseri (n = 5) and tylototriton kweichowensis (n = 6) with sperm c ... | 2020 | 32437677 |