Post by MADMIKE on Oct 29, 2006 16:07:42 GMT -5
Experiments with Guppy Foods
By Dr. E. C. Larr & 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 4442 (LARR, JOHNS, ROBINS)
FOOD- TOTAL YOUNG
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 I was found that feeding this material, even every other day, prolonged the guppy?s life from 25% to 50%.
ADDITIONAL EXPERIMENTS ON FOODS
The females all gave birth rates above 275, and throughout the 6 strains tested on the two mixtures all showed much faster growth rates. Comparing the two mixtures for which was better would be difficult as all the test numbers and rates were within 4.7%. From the tests, covering 1253 fish, it was not revealed which was better, but certainly both were better than any other food I have tested. All fish were fed 3 times a day: Morning, Noon, and Evening.
By Dr. E. C. Larr & 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 4442 (LARR, JOHNS, ROBINS)
FOOD- TOTAL YOUNG
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 I was found that feeding this material, even every other day, prolonged the guppy?s life from 25% to 50%.
ADDITIONAL EXPERIMENTS ON FOODS
The females all gave birth rates above 275, and throughout the 6 strains tested on the two mixtures all showed much faster growth rates. Comparing the two mixtures for which was better would be difficult as all the test numbers and rates were within 4.7%. From the tests, covering 1253 fish, it was not revealed which was better, but certainly both were better than any other food I have tested. All fish were fed 3 times a day: Morning, Noon, and Evening.