PARTICIPATING PERSONNEL 



PERSON 



TITLE 



PROJECT 



Roger E. Burrows 



Williaa Clegg 

 Ernest Dietrich 

 Mabel Edwards 

 W. H. HageTig 

 G. Ivor Jones 

 Neva Karrick 

 Raymond Landgraf , 

 David T. Miyauchi 



David D. Palaer 

 George Pigott 



Aquatic Biologist 



Chemist 



Laboratory Aide 

 Physical Science Aide 

 Laboratory Aide 

 Biochemist 

 Chemist 

 Jr. Chemist 



Fishery Products 



Technologist 

 Aquatic Biologist 

 Engineer 



Leslie Robinson 

 F. Bruce Sanford 

 Maurice E. Stansby 



Aquatic Biologist 



Chemist 



Chief, Pacific Coast 

 and Alaska Tech- 

 nological Research 



Supervisor of Hatchery Fish 



Feeding Studies 

 Chemical CGiq>osition Analyses 

 Preparation of Fish Samples 

 Vitamin Assays 

 Collection of Salmon Waste 

 Biochemical Studies 

 Vitamin Assays 

 Collection of Salmon Waste 

 Collection of Salmon Waste 



Hatchery-Fish Feeding Studies 

 Chemical Preservation Studies 



and Collection of Salmon 



Waste 

 Hatcherj Feeding Studies 

 Preparation of Meal Samples 

 Supervisor of Chemical and 



Technological Studies 



ABSTRACT 



Microbiological methods of assay for niacin, riboflavin, biotin, 

 and vitamin B-.^ were adapted to hatchery feed materials . Data on composi- 

 tion of 49 hatchery feed components and 42 mixed hatchery-fish diets are 

 presented for the foregoing vitamins and for moisture, protein, oil, and 

 ash. It was found that the component parts of salmon viscera vary wldely 

 in nutritive value for hatchery-fish feeding, and also the salmon eggs 

 have by far the greatest nutritive value of any of these ccmponents. 

 Other fish materials, such as halibut sawdust (the band-saw waste result- 

 ing frcB preparation of steaks from frozen halibut), whole rockfish, tuna 

 viscera, tuna livers, and specially prepared fish meals, were evaluated 

 as possible hatchery feed ingredients. 



PracticjuL cramercial methods of collecting, sorting, and packing of 

 salmon cannery waste were developed that allow shipment of the material 

 from Alaska to fish hatcheries in the States at economically feasible 

 costs. A special container, consisting of a burlap sack with inner 

 polyethylene bag liner, was developed for use with salmon viscera. 



Progress was made toward development of a cheap chemical preserva- 

 tive treatment for salmon eggs for use at salmon canneries iidiich do not 

 possess cold storage facilities. A large-scale collection of salmon 

 viscera materials involving over 100,000 pounds of i'roxen products was 

 made at Petersburg, Alaska. The material was shipped to Federal hatcheries 



