文章基本信息

标题：Effect of Activated Milt Residence Time on Landlocked Fall Chinook Salmon Egg Survival
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作者：Jessica Shannon ; Nathan Huysman ; Jill M. Voorhees 等
期刊名称：Open Journal of Applied Sciences
印刷版ISSN：2165-3917
电子版ISSN：2165-3925
出版年度：2020
卷号：10
期号：4
页码：135-141
DOI：10.4236/ojapps.2020.104011
出版社：Scientific Research Publishing
摘要：During artificial spawning of salmonids, activated sperm is allowed to remain in contact with eggs for variable durations. This study examined multiple residence times (20, 40, 60, 90, or 120 seconds) for activated sperm on landlocked fall Chinook salmon (Oncorhynchus tshawytscha) eggs during spawning. There was no significant difference in egg survival to the eyed-stage of development or to hatch among any of the treatments, with a mean (SE) percent survival to the eyed stage of 63.9 (5.8). These results indicate that only relatively short residence times of activated milt on eggs during landlocked fall Chinook salmon spawning are needed to ensure egg survival, resulting in potentially substantial reductions in production-level spawning times and associated labor costs.
关键词：Chinook Salmon;Oncorhynchus tshawytscha ;Milt;Eggs;Spawning;Sperm