91'st update on fly longevity experiments

From: Doug Skrecky (oberon@vcn.bc.ca)
Date: Sun Jun 08 2003 - 23:29:39 MDT

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        This is the 91'st update of my fly longevity experiments. Average
    temperature was 20.5 C during this run. Estimated maximal longevity using
    the formula (363 - T*11.2) is 133 days.
        This run tested various sources of water, plus I also tried a last can
    of grass jelly (so I didn't have to drink it), and some skim milk.
        At first glance, and contrary to previous results, grass jelly did not
    exert any significant benefit this time. However take a look at the
    results on day 77.
        Skim milk started well, but may have been harmful with regards to late
    life mortality. Neither distilled water, nor Perrier offered any benefit
    over tap water.

    Run #91 Percent Survival on Day
    supplement 20 25 32 39 44 49 54 60 66 72 77 82 88 94 99
    ___________________________________________________________________
    tap water (control 1) 87 80 80 80 80 67 67 47 40 40 20 13 7 0 -
    tap water (control 2) 93 93 93 87 87 80 73 60 33 33 20 13 0 - -
    grass jelly 71 65 65 59 53 53 53 47 41 35 35 17 6 0 -
    milk, skim 100 100 91 91 91 45 27 18 9 0 - - - - -
    distilled water 1 67 67 67 67 53 40 33 20 7 7 7 7 0 - -
    distilled water 2 83 75 75 75 67 67 50 25 17 8 8 0 - - -
    Perrier 1 88 88 50 63 50 38 25 13 13 13 13 0 - - -
    Perrier 2 79 79 71 64 64 50 50 43 21 14 7 7 7 7 0



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