X-Message-Number: 23226
Date: Tue, 6 Jan 2004 20:41:09 -0800 (PST)
From: Doug Skrecky <>
Subject: 119'th update on fly longevity experiments

    This is the 119'th update of my fly longevity experiments. Average
temperature was 23.9 C during this run. Estimated maximal longevity using
the formula (363 - T*11.2) is 95 days.
    Yellow banana pulp once again offered substantial protection during
the first two weeks of the experiment. Ripe banana failed to acheive this,
and cooked banana offered a lesser degree  of protection. The active
ingrediant(s) are apparently unstable, and maximal longevity was reduced
at high 20% doses of banana. Dragonfruit rind also offered some transient
benefit.
    Since fly food is never changed after an experiment is initiated,
unstable protectants can not offer long-term protection, due to this
experimental limitation.

Run #119                       Percent Survival on Day
supplement              9  14 20 26 31 36 42 48 54 60 67 72 77
______________________________________________________________
control one            92  75 67 63 50 46 29 25 25 17 13  0  -
contol two             91  66 63 28  9  9  9  3  0  -  -  -  -
banana, yellow 8%      94  94 88 74 38 29 12  6  3  3  0  -  -
banana, yellow 20%    100 100 84 44 36 16 16  8  0  -  -  -  -
banana, cooked 8%      90  84 84 61 45 32 10 10  3  0  -  -  -
banana, cooked 20%     79  71 50 35 18  9  6  3  0  -  -  -  -
banana, red,ripe 8%    94  74 65 39 36 19 13 10  3  3  3  3  0
banana, red,ripe 20%   88  77 44 21  3  0  -  -  -  -  -  -  -
dragonfruit, pulp 8%   93  79 68 54 32 14 14  4  0  -  -  -  -
dragonfruit, pulp 20%  87  70 53 37 30 13 13  3  3  3  3  3  0
dragonfruit, rind  8%  95  92 84 73 46 19 16  5  3  3  0  -  -
dragonfruit, rind 20%  97  94 77 41 24 18 12  9  3  0  -  -  -
figs 5%                90  86 83 69 52 38 31 21 17  7  0  -  -
figs 12%               81  77 73 69 50 27 15  8  0  -  -  -  -

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