Arizona republican., 1901-05-16
FACTS ABOUT TROUT EGGS.
Take, About G5O0 of Them to Fill
 Quart Measure.

A few days ago I lifted tray of trout eggs from trough in one of the state hatcheries in the Adirondacks. and apparently there were two distinct kinds of eggs on the tray. One kind consisted of small. white eggs, and the other kind of large reddish pink eggs. certainly three times as large as the white eggs, yet both were from the same species of fish. The large eggs were from a brown trout, q wild fish. taken in one of the nets while the men were netting white fish. The small white eggs were taken from a brown trout. about the same size as the other. that was captured last year from the same pond. and it had been in the stock pond.. just one year.
 All fish eggs are measured as they come into q hatchery, as that is the beginning of the count of fish that re- suit from the eggs, but eggs differ greatly in size from the same species. and they have to be counted and count ed again. The trays in a hatchery trough are all of the same size. 25h inche., by 12ls incher. inside measure ment, and they will hold from 1000 to 9,000 lake trout eggs, and from 12,0O0 to l4,000 brook trout eggs, but they cannot be spread on tray to insure a trust worthy count Trout eggs have been counted by the square inch, but an ac- tual square inch will contain many more eggs than a theoretical square inch based on the number of eggs to lineal square inch. Quarts and quarts have been counted and fluid ounces are now continually counted to determine the number of eggs in standard quart.
 Here are the counts made by the United States fish commission of the number of rainbow trout eggs to the quart, made at different times and places-6,S75, 6.624, 6536-and with this for basis one would be on the safe side to call each quart 6,500 eggs, for an allowance must always be made. and Is made if the man who measures the egga is fair. as he should be- to make sure that he has the number of fry that lie reports when the matching is fin ished, but here ia another countless eggs. The last count is from eggs of domesticated fish, and the man who tit tSSs. iiitot itNN oiit Nobiit for wild eggs and another for stock egga.
 This allowance can be Illustrated by two reports that l saw within a few days. One foreman had sent to the foreman of another hatchery some whitefish eggs. The first man reported that he had sent 150 quarts of eggs, and ha second man reported that he had received 153 quarts. The first man said that he had made a fair allowance in his measurement. Each man had re- ported at central point without knowing the figures of the other. so. on the face of 1t the first man had sent 5.520,000 eggs and the second man had eggs to a quart.
 Tn counting eggs by measure much depends on the trustworthinesg of the men who do the measuring. that large eggs are not counted as srnall ones and that the proper standard of eggs to a quart is used. Once I foupd man us- ing a standard of 44000 whitefish eggs to a quart, and he believed he was right, and he had no idea of deceiving the commission that employed him for he had arrived at his figures by meas uring lfneal inch of eggs and sauar- Ing them, but eggs in square inch do not naturally occupy a position where the nadir of an egg in one layer coin cides with the zenith of the eggs below it. The safe way in figuring fish eggs is to count part of quart If there is. doubt about the standard, and then al- low a good margin for loss and shrink- age.-Forest and Stream.
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