supplementary part-time income. Larger firms can consider natural 

 resource and market points in location. Output range is about 1 

 to 70 metric tons per firm. Feed consists mainly of waste and 

 small fish, some of which is operator caught, with conversion at 

 6 to 7 kg per kilogram of fish produced. Very little dry feed is 

 used; future feed may include krill. Marketing problems relate 

 to the competitive nature of the firms, product competition with 

 salmon and sea trout, luxury-fish price (about three times cod 

 prices), inability of many producers to hold ("store") live fish 

 past Christmas, guality variations, and other factors. 

 Subject descriptors: 

 Trout; Norway; revenue; costs; returns; production data. 



073 



Brown, E. Evan; Hill, T. K. ; Chesness, J. L. 



1972. 



Rainbow trout — a new money crop for South Georgia. 



Univ. Ga., Ga. Agri. Res., Fall, 1972, pp. 10-12. 



Problems, a trial operation, itemized initial costs and annual 



costs and returns, computational assumptions, and other 



information are given relative to the growth of rainbow trout in 



a new eight-segment raceway on University property at Tifton, Ga . 



The trout were stocked on December 10, 1971. Data for the 



previous year indicate that one might expect less than 120 days 



with temperatures below the critical 70 degrees F., and 6- to 



8-inch fingerlings were stocked to reach 10- to 12-ounce market 



size in this time. Harvest occurred after 105 days. Sales were 



made locally, to fishout ponds, and to a fish processor, with the 



price averaging $0.664/lb. Even counting an unexplained 



(one-night) loss that caused most of the 17 percent mortality, 



feed conversion was guite good (1.3 lb commercial, floating, dry 



feed per 1.0 lb of fish, live weight basis). 



Subject descriptors: 



Trout; revenue; costs; returns; raceways. 



074 



Collins, Richard A. 



1972. 



Cage culture of trout in warmwater lakes. 



Amer. Fish Farmer World Aguacult. News 3 (7): 4-7. 



The results of a study are reported briefly, along with methods, 



materials, and technical details. Inspection of surface water 



temperature of lakes indicates that southern Arkansas, northeast 



Texas and central parts of Mississippi, Alabama, and Georgia 



should provide about a 150-day winter growing season, during 



which time 3-ounce trout may grow to 12 ounces. The following 



data are provided for a nine-cage, 115-day experiment: stocking 



rate, mortality, number harvested, average and total weight, 



total weight gained, and feed conversion rates. Information is 



also given on fingerling, feed, cage, and labor costs, revenue, 



and computational assumptions. 



33 



