TROUT BREEDING. 73 



CHAPTER IV. 



TROUT BREEDING 



GENERAL REMARKS, FOOD FOR ADULTS, PROFITS AND STATISTICS. 



Food of adult Trout. Curd, liver, maggots. Maggot-factory. 

 Allowance of food for a given number. Natural food. Stall 

 feeding and its advantages. Trout culture a branch of farming. 

 Facilities possessed by farmers. Will fish culture pay? Instances 

 of its being profitable. Estimate of cost of feeding on curd. 

 Proposed trout breeding at Ingham Spring. Growth of trout. 

 Description of Huningue, and M. de Galbert's establishment, in 

 France. Heidelberg. Fish cultural enterprise in Switzerland. 

 Trout culture in the United States. Notice of Mr. Ainsworth's 

 establishment. Description of Seth Green's. 



Food for the Fish in the Ponds. Trout are carnivorous 

 and can hardly be driven to eat vegetable food. I have 

 known them in winter to linger around the entrance of a 

 spring branch where kitchen pots and pans were scraped ; 

 attracted no doubt by the small portion of animal mixed 

 with the vegetable food, which the brook carried into the 

 pond. When the weather became warm enough, however, 

 to bring flies on the water and to set the minnows in motion, 

 the mouth of the branch was deserted. The nearest ap- 

 proach to purely animal food is curd, and on this, with what- 

 ever fresh animal offal may come from the kitchen, the 

 farmer or one who grows trout for his own use must chiefly 

 depend. If sea-fish or liver can be obtained in quantities 

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