i 



Beef Heart and Beef Liver 

 for Young Fiskes 



Observation Breeding and Rearing Tanks Used by 

 Albert Gale, Esq. 



f 



In connection with the short article on 

 the result of feeding beef liver and heart 

 to young trout, published in the United 

 States Fisheries Bulletin for March, 

 1919, the following details of the method 

 of preparation and feeding is given for 

 those who may be interested in using it 

 for other fish. The Bureau has not used 

 this food for goldfish, but has no doubt 

 that it would make excellent food for 

 them, although it is believed that less 

 expensive foods for such fish can be 

 found in various commercial prepara- 

 tions and in cream of wheat and rolled 

 oats, mush, etc. 



If the fish to which it is desired to feed 



the heart and liver are very young it is 

 necessary to remove all gristle or con- 

 nective tissue and pass the meat through 

 a food chopper seven or eight times, using 

 the plate with the finest perforations. It 

 is then mixed with a sufficient amount of 

 water to reduce it to such consistency as 

 will permit its being spread evenly on the 

 surface of the water. The use of an egg- 

 beater has been found advantageous in 

 removing from the feed at this stage any 

 remaining portions of the connective tis- 

 sue, the stringy portions becoming at- 

 tached to the movable parts of the egg- 

 beater as they are revolved in the mix- 

 ture. In the first feeding stages a feather 



