82 Thirty- Second Annual Meeting 



DISCLSSIOX OF MR. HUBBARD's PAPER. 



Mr. Titconib : J want to inquire tlie temperature of the wa- 

 ter the eggs were held in previous to shipping. 



Mr. Hubbard : 1 could not give it exactly. The water was 

 what we used in the hatching house. 



Q. Pretty close to 32° ? 



A. Oh, no, it was above 40°. 



Q. Then the eggs when they were six days old must have 

 been in a very delicate condition. 



A. Well, thej did not appear to be from the condition they 

 arrived in when they reached Xashua. I think that some of 

 them were in a delicate condition. There were a few eggs thai 

 were there twelve to fourteen days old, that were in a delicate 

 condition. 



Mr. Clark : At what temperature of water, did you say ? 



Mr. Hubbard: I cannot say just wliat tlie temperature was, 

 but it was over 40°. 



Mr. Clark : I made a report six or eight years ago on the 

 same line with the l)rook trout, when we had a field station for 

 brook trout on the Au Sable river in ^Michigan, and I made some 

 pretty thorough experiments in transporting green brook trout 

 eggs, to arrive, if possible, at the exact time when they should 

 not be moved, and I think in that report you will find that at a 

 water temperature of 48° to 50° F. the brook trout eggs should 

 not be moved at eight days old. These experiments were con- 

 ducted as follows : The eggs were all moved about 200 miles by 

 rail; we moved a certain portion of eggs, probably 50,000 to 

 100,000 each lot each day; they were taken, that is, Avithin a 

 few hours, and then every day from tliat day on u]itil they wero 

 eighteen days old (of course eyed eggs). Wc found that on the 

 8th day tlie greatest loss occurred. The critical stage is about 

 the eighth day, and we can move the eggs Avith perfect safety be- 

 fore reaching that period, and when that critical stage is reached 

 we do not allow even the trays to be taken out of the troughs. 



]\Ir. ITubbard : How are the eggs shipped — on the trays, or 

 how ? 



Mr. Clark: The last year Ave moved about 30 million eggs, 

 and most of them Avere moved on either flannel travs or chees" 



