View unanswered posts | View active topics It is currently Sun May 19, 2013 9:02 pm



Reply to topic  [ 2 posts ] 
 Short feeding experiment 
Author Message

Joined: Thu Jul 19, 2012 11:42 pm
Posts: 15
Post Short feeding experiment
Based on my previous post here, I decided to do a small experiment.

Original observation:
Quote:
[They don't like] Water spinach (and I'm guessing any other greens having high cellulose content).
They eat the melon and cucumber to the rind but ignores the greens.
You know, by observing they way they congregate around certain easily digestible food items, I'm beginning to suspect that they release chemical pheromones while they eat, like the way ants do? That would explain the way they gang up on certain food and sort of avoids the other harder to digest food, it just reminds me of hive behavior in other insects.
Oh, I also notice that one of the larvae that crawls up the bin after eating the melon leaves a thin "trail" of "slime", and there is a conga line of larvae following it. Now I'm not sure if this is just plain old melon juice full of nutrition they're following, or a chemical pheromone phenomena thingamagic, but it sure is intriguing...


Question: Can we harness/exploit this feeding behavior?

Hypothesis: By layering "tougher" food below a layer of easily digestible food, we can trick the larvae into eating tough food faster compared to a situation where they are placed separately.

Experiment design: A thin slice of melon is placed on top of a layer of water spinach. If the hypothesis are true, then the water spinach layer under the melon should be digested at a faster rate compared to the layer of water spinach without melon.

Result: Stay tuned!


Sat Jul 21, 2012 3:22 am
Profile Send private message

Joined: Thu Jul 19, 2012 11:42 pm
Posts: 15
Post Re: Short feeding experiment
So far it looks like they do eat through the water spinach right underneath the melon, even the stems. Compared to the melon sitting directly above the cocopeat bedding, the melon sitting on top of the water spinach takes a considerable longer time to be digested. Still don't know if this is related to the layer of spinach, or because there are a larger concentration of larvae on the straight melon.


Sat Jul 21, 2012 8:13 pm
Profile Send private message
Display posts from previous:  Sort by  
Reply to topic   [ 2 posts ] 

Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group.
Designed by STSoftware for PTF.