THE NEW ART OF BREEDING FISH. 71 



cure them in abundance, and they must therefore bo 

 considered as an occasional luxury. 



Whatever be the regime to which the young fish 

 are submitted, whether living prey be obtained for 

 them, or in default of it they are fed. upon cooked 

 meat, in all cases it is possible to bring them up, to 

 the number of many thousands, within very narrow 

 limits, and to cause them to grow rapidly until they 

 attain sufficient size to be let loose in larger streams. 



But there the same care and the same provision 

 of food should be extended to them. A perfect sys- 

 tem of economy even requires their being furnished 

 with food at all stages of their existence. Not only 

 will this prevent those of a carnivorous species from 

 preying on one another, but they will acquire soon a 

 more beautiful shape and better qualities than they 

 could do if abandoned to the resources which streams 

 naturally oflFer. Means of feeding become more easy 

 as the fish grow older. Thus, to salmon a year old, 

 can be furnished with little trouble, in great abund- 

 ance, tadpoles, the fry of white fish, and principally of 

 minnows, aquatic mollusca, little fresh water shrimps. 

 Those of a more advanced age will thrive upon the 

 leavings of the kitchen, and upon the flesh of all 

 kinds of domestic animals. 



