AUTHOR=Liu Tengfei , Niu Jincong , Huang Yuqi , Chen Hong , Wu Yongjie , Xu Yongping TITLE=Ultrastructural evidence for the activation of autophagy and analysis of the protective role of autophagy in goat spermatozoa under liquid storage JOURNAL=Frontiers in Veterinary Science VOLUME=Volume 12 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/veterinary-science/articles/10.3389/fvets.2025.1543459 DOI=10.3389/fvets.2025.1543459 ISSN=2297-1769