South Jersey Guppy Group (Fancy Guppies) Specializing in championship show guppies
Experiments with Guppy Foods
by Dr. E. C. & Associates
The following statistics are the results of an extensive series of test run by
Drs. Larr, Johns and
Tobins. To determine which kinds of foods would cause female guppies to drop the largest number of fry.
Each test group consisted of three pairs of adult guppies which were fed only the one kind of food- - and no others—during the 120 day test period. Each tank of test fish were fed three times a day: morning, noon and afternoon (4 pm.). The dry food tests consisted of alternate feedings of regular and flake food; the regular food being a 50/50 mix of two leading brands of dry food; the flake foods being a 50/50 mix of two leading brands of flake foods. (Since these tests were conducted. Another brand of dry food has been tested which fits between #5 and #6 for production of young.)
FOOD TEST NUMBER 6642 (LARR, JOHNS, ROBINS)
FOOD TOTAL No. of Fry
1: Earthworms, chopped
178
2: Earthworms, chopped frozen
164
3: Beef heart
143
4: Tubifex
141
5: Brine Shrimp, Hatched
101
6: Gordon’s Formula (Liver)
79
7: Brine Shrimp, Adult Frozen
76
8: Dry Food, flake & regular
52
9: Freeze-dry (brine shrimp & tubifex)
40
10: Leaf lettuce
37
11: Peas 28
12: Farina
18
13: White worms
16
14: Oat Meal
12
15: Bran
9
16: Bread
6
All low producing pairs were given earthworms at the end of the above test and all quickly gave results as in # 1
17: Earthworms and dry food
194
18: Earthworms, beef heart and lettuce
221
In the testing of beef heart it was found that feeding this material, even every other day, prolonged the guppy’s life from 25% to 50%.
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What I don't see is if these numbers belongs to only one drop or two.
The health & vitality of both females and drops appear not to be tested either. It would be interesting to know that too.