X-Message-Number: 22524
Date: Sun, 14 Sep 2003 11:04:20 -0700 (PDT)
From: Doug Skrecky <>
Subject: 104'th update on fly longevity experiments
This is the 104'th update of my fly longevity experiments. Average
temperature was 24.5 C during this run. Estimated maximal longevity using
the formula (363 - T*11.2) is 89 days.
Here I continue testing raw vegetable extracts by blending with water,
and then screening out the roughage. The extracts are then used in place
of water to hydrate fly food powder.
None of the brassica vegetables tested offered any significant
advantage on average survival, and at high doses some vegetables were
toxic. Broccoli stem slightly increased maximal longevity. Although a high
consumption of vegetables has been reputed to be associated with reduced
mortality in humans, flies are not believed to typically die of either
cardiovascular disease, or cancer. Motor neuron degeneration limits
maximal fly longevity, but I suspect viral infections may also account for
some deaths.
Run #104 Percent Survival on Day
supplement 12 17 24 30 35 40 46 52 57 63 68 73 78
_________________________________________________________________
control one 96 92 88 88 85 81 65 27 19 8 0 - -
control two 98 94 90 80 71 59 39 16 12 2 0 - -
bok choy 13% 97 94 94 92 89 81 61 44 33 11 0 - -
bok choy 50% 97 94 91 91 79 71 59 24 21 12 6 3 0
broccoli, flower 13% 96 86 75 75 57 46 32 18 0 - - - -
broccoli, flower 50% 96 81 70 48 37 19 15 7 4 4 0 - -
broccoli, stem 13% 97 97 90 68 68 65 39 35 29 23 23 10 0
broccoli, stem 50% 97 97 72 50 39 28 14 11 6 3 3 0 -
brussel sprouts 13% 94 94 82 65 65 47 44 24 18 12 6 3 0
brussel sprouts 50% 80 52 48 36 28 20 16 12 8 4 0 - -
cauliflower, head 13% 91 91 77 69 60 43 40 20 11 3 0 - -
cauliflower, head 50% 86 59 36 27 27 9 9 9 9 0 - - -
cauliflower, leaves 13% 95 95 79 68 53 47 32 26 21 11 5 0 -
cauliflower, leaves 50% 96 72 48 36 20 4 4 4 0 - - - -
kale, leaves 13% 100 92 88 88 81 62 42 31 27 19 12 4 0
kale, leaves 50% 88 77 65 54 50 46 27 19 19 12 0 - -
kale, stem 13% 100 100 86 86 77 73 64 41 27 18 5 0 -
kale, stem 50% 88 85 77 50 35 23 23 12 0 - - - -
Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=22524