United States Department of the Interior, Fred A. Seaton, Secretary 



Fish and Wildlife Service, Arnie J. Suomela, Commissioner 



Bureau of Commercial Fisheries, Donald L. McKernan, Director 



USE OF FISH PITUITARIES TO INDUCE SPAWNING 

 IN CHANNEL CATFISH 



by 



Kermit E. Sneed 



University of Oklahoma Research Institute 



Norman, Oklahoma 



and 



Howard P. Clemens 



Zoology Department, University of Oklahoma 



Norman, Oklahoma 



United States Fish and Wildlife Service 

 Special Scientific Report— Fisheries No. 329 



Washington, D. C. 

 April 1960 



