Trout Breeding. 101 



"3. Pulp of sheep livers. 4. Eighty per cent. 5. Feed 

 in trqughs to six or eight weeks." 



W. L. Gilbert, Old Colony Trout Ponds, Plymouth, 

 Mass. — "3. Sheep livers. 4. Forty per cent. 5. Don't 

 feed in hatching troughs'" 



Just before going to press these questions and an- 

 swers were returned to the writers for correction after 

 eight more years' experience, but none of them made 

 any. A letter from Mr. G. Hansen, Osceola, Wis., 

 March 26, 1899, says : "I feed fry up to one year old 

 on beef liver and milk curd, mixed in the proportion of 

 two parts liver to one of curd. I feed in troughs from 

 February to May, sometimes until September, with 

 good success, but prefer putting them in a nursery pond 

 in May. The green slime, algae, bothers me some in 

 the hatching house by clogging screens, therefore I re- 

 move the fry. The wild fish give the best eggs." 



COMMENTS ON THE METHODS OF FEEDING. 



As a summing up of this question of feeding fry, 

 let me say : There is nothing better than liver of beef, 

 or perhaps other animals, from the start. Maggots are 

 as good after the fish get big enough to swallow a full- 

 grown one, and they do not drop until they are full 

 grown. Trout in nature do not eat vegetable food, and 

 while curd may be of value, I don't take a cent's worth 

 of stock in any admixture of vegetable matter. Under 

 my management of the New York hatchery on Long 

 Island, the yearling trout, at twelve months old, meas- 

 ured from six to nine inches. No hatchery in the State 

 could show such trout. This was partly owing to 

 crowding the food to them and partly to the tempera- 



