X-Message-Number: 24490
Date: Mon, 9 Aug 2004 20:00:02 -0700 (PDT)
From: Doug Skrecky <>
Subject: 146'th update on fly longevity experiment

     This is the 146'th update of my fly longevity experiments. Average
 temperature was 25.3 C during this run. Estimated maximal longevity using
 the formula (363 - T*11.2) is 80 days.
     In this run I take a look again at doses of citric acid higher than
 the control 1/2 tsp, and also check out lactobacillus "probiotic"
 bacteria (75% acidophilus & 25% bifidus).
     Citric acid at 1 & 2 tsp doses appeared to help. Lactobacillus
 was also beneficial, but only at doses much larger than those that were
 immunostimulatory in mammalian species.

 Run #146                         Percent Survival on Day
 supplement                 25  30  35 40 52 61 67 73 78 83 88 93
 ________________________________________________________________
 control one               100 100  94 91 71 35 35 12  6  0  -  -
 control two               100 100 100 98 70 28 18  0  -  -  -  -
 alum 1/8 tsp               91  82  71 61 36 11  2  0  -  -  -  -
 alum 1/2 tsp                0   -   -  -  -  -  -  -  -  -  -  -
 blackberry syrup 1/2 tsp  100 100  97 97 71 40 32  5  0  -  -  -
 blackberry 2 tsp           95  95  95 92 78 41 24 11  8  0  -  -
 citric acid 1 tsp         100 100 100 95 81 61 51 12  0  -  -  -
 citric acid 2 tsp         100  95  95 95 85 50 33 13  5  3  0  -
 citric acid 3 tsp         100  94  94 88 65 29 21  6  0  -  -  -
 lactobacillus 4 bil cells 100  95  88 81 62 33 26 10  3  0  -  -
 lactobacillus 8 bil cells  90  90  90 90 77 43 33 17  3  0  -  -
 lactobacillus 16 bil cells 96  96  89 75 64 39 36  7  7  4  0  -
 lactobacillus 32 bil cells 92  92  84 84 60 48 36 12  8  8  4  0

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