X.-THE BEST FOOD FOR YOUNG SALMONOIDS AND FOR LARGER 

 SALMONOIDS IN PONDS. 



[From circular No. 4 of the German Fishery Association, Berlin, May 28, 1877.] * 



At the ineetiug of German pisciculturists beld at Berlin, May 1 and 2, 

 1877, discussion on tbe above question was opened by Mr. Schuster, of 

 Freiburg. He said that this question was one of great importance in 

 more than one respect, and that he was desirous of obtaining informa- 

 tion from competent persons. As regards the very young fish, some 

 might say that it would be best not to feed them at all, but put them in 

 ponds before they seek their food, and while they still have a small rem- 

 nant of the umbilical bag. But this is not always advisable, for if 

 ihe snow melts very suddenly the young fish are easily destroyed by 

 the high water. Mr. Schuster, in conclusion, remarked that a Swiss 

 had olfered him a recipe for procuring a never-failiug supply of suitable 

 food, but he demanded no less than $4,000 for divulging the secret. 



Mr. Haack, of Hiiuiugen, made a long speech on this question, which 

 he considered the most important question in i)isciculture. He recom- 

 mended the following food for young salmonoids : The larvte of gnats, 

 the small larvae Daphnia, Cyclops, &c., which are skimmed otf stagnant" 

 water (ditches, pools, &c.) with a fine muslin skimmer. Two children 

 do this early in the morning and in the afternoon, and he says he in 

 this way gets enough food every day to feed 20,000-30,000, and even 

 00,000 young fish. This is the most natural food for them, but not tbe 

 cheapest. Mr. Haack said he did not like to feed the fish inside the 

 building for any length of time, for even if the fish grow till they lose 

 their umbilical bag they are easily affected by the Aclilya prolifcra 

 or fungus. The larger fish are fed on the larvee of the "Kriebelmiicke," 

 a sort of gnat which are found even in the coldest trout-brooks. The 

 females of this species of gnat generally deposit their eggs on floating 

 grass. 



Ground meat ("Fleischmehl," meat-flour) and ground Norwegian fish 

 (" Fischmehl," fish flour) seem to deserve special attention. According 

 to information received from Mr. Kuffer,* three to four parts ground meat 

 are mixed with one part common flour. The ground meat is boiled a 

 little in hot water and then the flour is stirred in. He had not yet tried 



* Which ia the best food: (a) for young salmonoids and (b) for larger salmonoids ia 

 ponds where no food- fish can be obtained ? 



Welches Futter ist das beste : (a) f iir Salmonidenbrut, und (b) f iir grosser© Salmo- 

 niden in Teichen, wenn keine Futterfische zu erhalten sind? Aus circular No. 4 dea 

 Deutschen Fischerei-Vereins, Berlin, den 28 Mai, 1877. Translated by H. Jacobson. 



