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Thirty-fifth Annual Meeting 
and, strange to say, the best looking fish were attacked in this 
way. 
As-we are producing these fish for commercial purposes, a 
very serious condition confronted us. 
I attributed these discouraging results to the following 
causes : 
Loss of eggs caused by chilling. 
Low quality of eggs and fish caused by over feeding stock 
fish and the nature of their food. 
Acting on these theories I took particular pains in the sum- 
mer of 1904 in the feeding of our stock fish. Having fed hog 
plucks to our fish, giving the large fish mostly lights, I shifted 
to sheep plucks, and now use them exclusively. Hog plucks 
contain too much grease, oil, etc. I also fed minnows, grass- 
hoppers, worms, etc. 
As soon as we got through handling brook trout during the 
fall of 1904, we moved our rainbow stock fish to the breeding 
pens. In looking over the fish at this time (12-20-04) found 
one ripe female, which with a few males I took into the hatchery. 
Pond water was displaced by using hatchery water, temp. 49. 
After leaving the fish in the warmer water a few minutes, we 
stripped the female. ‘This was unusually early for us to get any 
rainbow eggs,-and as we got a few eggs during the month of 
January, it was an easy matter to follow the development. 
When the first lot of eggs eyed they were counted and dead ones 
subtracted, showing 96 per cent fertile eggs. This result was 
practically kept wp with— 
Our entire take, which was......... 469,000 
Our lossof eres *wasi yeni taken 45,000 
Our. Toss: of-allevimg Swaehi hrc acter 106,313 
Our ‘loss od Mary WAST ihe <oolo sidenote 13,408 
Whilst the loss in alevins was still very heavy, we had only 
two small lots of side-wheelers, and the losses from this cause 
was small. Eges taken during the last ten days of the season 
were taken at the side of pond, weather and water being fine; 
nevertheless losses in these eggs were heavy, and alevins almost 
a total loss. Not having any idea of writing this paper at that 
time I did not keep a separate record of those eggs. 
