X-Message-Number: 25751
Date: Thu, 3 Mar 2005 20:17:37 -0800 (PST)
From: Doug Skrecky <>
Subject: 168'th update on fly longevity experiments

     This is the 168'th update of my fly longevity experiments. Average
 temperature was 20.8 C during this run. Estimated maximal longevity using
 the formula (363 - T*11.2) is 130 days.
     Cold blended broccoli sprouts did nothing before, but I was so
 impressed by what I'd read about sulforaphane, that I tried a heated
 blend here as well. This also turned out to be a dud.
     Delicata squash may have offered some temporary benefits, but it also
 made the fly food appear wet. Since aged flies lack the ability to fly or
 walk on the side of the bottle, I expected this wet surface to eventually
 increase their risk of infections. As expected the survival curve for
 delicata fed flies was truncated.
     Finally the last fly to die was one fed a low dose of arugula. This
 is here regarded as a chance finding.

 Run #168                 Percent Survival on Day
 supplement            4 12 23 31 41 51 61 69 78 92 99 111 121 124
 _________________________________________________________________
 control one         100 97 88 75 38 34 16  6  3  0  -   -   -   -
 control two         100 77 70 67 57 37 27 10  3  3  3   0   -   -
 arugula 5%          100 78 67 55 44 36 22 11  8  3  3   3   3   0
    "   20%          100 88 78 72 59 31  9  6  3  3  3   0   -   -
 broccoli sprouts 5% 100 77 65 45 26 16 16 13  7  0  -   -   -   -
  (cold)         20%  91 78 61 61 48 39 26 17  4  0  -   -   -   -
 broccoli sprouts 5% 100 76 71 67 57 19 14  5  0  -  -   -   -   -
  (hot)          20%  96 73 73 55 46 41 23  5  0  -  -   -   -   -
 squash, delicata 5%  95 91 86 81 62 33 19 10  0  -  -   -   -   -
    "            20%  87 87 80 80 60 40 27 27 13  0  -   -   -   -
 squash, gem 5%       96 73 68 59 46 23 18 14 14  5  5   0   -   -
    "        20%      91 86 73 50 23 18 18 14  9  0  -   -   -   -

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