Glucose solution tubes
Posted: Sun Apr 22, 2018 5:00 pm
I have recently set up a sugar source for my 2nd-year Camponotus colony as follows:
Add food-grade dextrose (D-glucose, "corn sugar") to room-termperature purified water with constant stirring until no more will dissolve
Gently heat the mixture with constant stirring just until all the glucose goes into solution and the liquid becomes clear
Allow to cool to room temperature
Add the liquid into a test tube and push a cotton ball into the tube until the surface of the cotton is wet with dextrose solution
I connected this via a custom adapter to the rest of their habitat which consists of test tubes, connecting tubing and fittings, and a small outworld.
The ants are seen visiting and drinking from this setup regularly and seem to be doing well so far. Curiously, they have also placed a mealworm head in front of the cotton, about 3mm away from it.
The glucose solution should be concentrated enough to inhibit microbial growth, and I like that it is not sticky, like sucrose solution or honey.
I've read some comments that sugar water solution tubes like this are no good for ants; what are the problems with them? If the ants can have this as a source of sugar and have gut-loaded insects to meet the balance of their nutritional needs, I think it would be very convenient. The ants also seem to be more active when eating this glucose than they do when eating honey.
I have also noticed that the ants seemed averse to a concentrated organic cane sugar solution. They would readily approach the solution, but as soon as they touched it with their antennae they would turn away from it as if repulsed.
Any thoughts or comments on this are greatly appreciated. Thank you.
Add food-grade dextrose (D-glucose, "corn sugar") to room-termperature purified water with constant stirring until no more will dissolve
Gently heat the mixture with constant stirring just until all the glucose goes into solution and the liquid becomes clear
Allow to cool to room temperature
Add the liquid into a test tube and push a cotton ball into the tube until the surface of the cotton is wet with dextrose solution
I connected this via a custom adapter to the rest of their habitat which consists of test tubes, connecting tubing and fittings, and a small outworld.
The ants are seen visiting and drinking from this setup regularly and seem to be doing well so far. Curiously, they have also placed a mealworm head in front of the cotton, about 3mm away from it.
The glucose solution should be concentrated enough to inhibit microbial growth, and I like that it is not sticky, like sucrose solution or honey.
I've read some comments that sugar water solution tubes like this are no good for ants; what are the problems with them? If the ants can have this as a source of sugar and have gut-loaded insects to meet the balance of their nutritional needs, I think it would be very convenient. The ants also seem to be more active when eating this glucose than they do when eating honey.
I have also noticed that the ants seemed averse to a concentrated organic cane sugar solution. They would readily approach the solution, but as soon as they touched it with their antennae they would turn away from it as if repulsed.
Any thoughts or comments on this are greatly appreciated. Thank you.