Journal of Aquaculture Research & Development

South Dakota Game, Fish and Parks, McNenny State Fish Hatchery 19619 Trout Loop, Spearfish, South Dakota, USA

Publications

• Research Article   
  Evaluation of Stirring during Artificial Spawning of Landlocked Fall Chinook Salmon
  Author(s): David Cook, Jill M. Voorhees* and Michael E. Barnes
  
  Stirring eggs and milt during artificial spawning of salmonids is a well-established practice. However, it has not been objectively evaluated. This experiment compared egg survival of spawns of landlocked fall Chinook salmon (Oncorhynchus tshawytscha) that were either stirred with a turkey (Meleagris gallopavo) tail feather or unstirred during sperm activation. There was no significant difference in egg survival to the eyed-stage of development between the two treatments, with mean percent (SE) survival in the stirred eggs at 44.6% (7.4) compared to 42.9% (5.8) in the unstirred eggs. Mean percent (SE) survival to hatch was also not significantly different for stirred eggs at 40.0% (7.1) compared to unstirred eggs at 39.1% (6.0). Based on the results of this study, stirring landlocked fall Chinook salmon eggs and milt during sperm activation is unnecessary an.. View more»
  

  DOI: 10.35248/2155-9546.23.14.785

  Abstract HTML PDF