64 Thirty-Second Annual Meeting 



lated, and certainly it is taken more eagerly than when mixed 

 with water. 



It may be of interest to add that 1 fed the blood from fresh 

 liver to 100,000 whitefish fry, soon after hatching, and continued 

 its use for several weeks. The experiment was quite successful, 

 as the food was eagerly taken and with evident benefit, for the 

 fry exhibited decided improvement in growth and activity. 1 

 imagine that with fresh blood from the slaughter house the im- 

 provement would have been still more marked. 



DISCUSSION OF DB. HENSHALL's PAPER. 



Dr. Henshall: This paper is very brief and is merely sug- 

 gestive : it relates to experiments with blood as fish food. 



Mr. Willard : Do you mean the Lake White Fish ? 



Dr. Henshall : The Lake White Fish. 



Mr. AVhish : I do not desire to occupy too much time, but 1 

 can say that the state of New York is paying about $500.00 a 

 month for fish food, and if blood can be obtained and used suc- 

 cessfully I should judge off-hand that the reduction in cost 

 would be about 50 per cent. Certainly some of the older mem- 

 bers here, who have had experience in feeding fish, ought to give 

 us some facts on this subject. 



Mr. Titcomb : I have tried blood as fish food, and I agree 

 with Dr. Henshall that it is very good for fry in the very early 

 stages. It is usually very difficult to get it in the vicinity of 

 hatcheries, but where it is possible to get near a slaughter house, 

 it is a cheap and good food. Blood in the country slaughter 

 houses goes to waste, and all they require is that the fish cultur- 

 ist collect it himself or pay the expense of collecting it. You 

 stirred it while it was warm, did you not ? 



Dr. Henshall : Yes, sir. 



Mr. Titcomb : You have to stir it while it is warm, to pre- 

 vent it coagulating; but I have an idea that it could be used quit^ 

 extensively in the vicinity of slaughter houses. I hope the doc- 

 tor's idea of using it on the grayling will solve a problem there 

 of rearing the grayling, which has not been solved, unless the 

 doctor has solved it this year. 



Dr. Henshall : It is too earlv now io sav miicli about it. 



