United States Department of the Interior, Doiaglas McKay, Secretary- 

 Fish and Wildlife Service, John L. Farley, Director 



USS OF FISH PRODUCTS IN BLUEBACK SALMON DIETS 



EVALUATION AND UTILIZATION OF CANNERY 

 WASTES AND OTHER MATERIALS IN HATCHERIES 



Report of experimental work carried out from 19^7 to 1951 

 "by the Seattle Fishery Technological Laboratory, Branch of 

 Commercial Fisheries in collaboration vdth the Leavenworth 

 Laboratory Western Fish Cultural Investigations, Branch of 

 Fishery Biology, and the Fishery Products Laboratory, 

 Ketchikan, Alaska. 



Chemical and technological studies under the general 

 supervision of Maurice E. Stansby, Chief, Pacific Coast 

 and Alaska Technological Research. 



Hatchery feeding studies tinder the general supervision of 

 Roger E. Burrows, Aquatic Biologist. 



SpecisJ. Scientific Report: Fisheries lo6 



Washington, D. C. 

 November 1953 



