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New Mexico Glenwood Trout Hatchery

When the eggs arrive they are spread out on slotted trays and immersed in the troughs, where they remain for two weeks.   The fry (small fish) emerge from the egg and wriggle down through the slots in the trays to the open water of the trough below.  The egg sack supplies nourishment to the young fish for about 10 days.  The fry remain in the troughs for 30 days until they are hardy enough to be moved to the tanks on the lower floor of the same building.   All trout feed used at New Mexico Hatcheries is a commercial product with main portions consisting of fish meal, meat by-products, cereal grains, and various vitamins and minerals.  This very fine fry food is fed to the young fish after the egg sac has been absorbed.  At this stage, they must be fed at one or two hour intervals during the day.  It takes two months from the time the eggs are received until the young trout are one and a half inches long.  A coarser food is necessary for the larger trout in the round rearing ponds outside the building.  Fish this size are fed several times a day.  These crumbles or pellets are for the catchable fish that are nearly ready to be planted.  Raising a nine-inch fish requires a full year.

March 2000

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