Medication is 64mg/gallon How can I measure 64mg of powder?

Discussion in 'Emergencies / Diseases / Injuries and Cures' started by amyduck, Feb 18, 2016.

1. amyduckChirping

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Jan 20, 2011
I'm trying to get out the door to work and need to figure out a good way to do this!
Thanks!

2. ChickenCanoeFree Ranging

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Nov 23, 2010
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Last edited: Feb 18, 2016
3. amyduckChirping

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Jan 20, 2011
How about teaspoons? I don't have anything that can weigh such a small amount, even if I made several gallons.. It looks like I have to count grains!

4. ChickenCanoeFree Ranging

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Nov 23, 2010
St. Louis, MO
Try calling a vet.

5. amyduckChirping

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Jan 20, 2011
oops -forgot about the mass issue... darn - I really wanted to start her on the med today.

6. YratIn the Brooder

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Jan 19, 2016
milligrams are not a weight unit, they are a mass unit, an extension of the metric base unit: gram.

there is no way to tell you a volume (tsp or Tbsp) to measure without knowing the substance's density.

But, if you have the ability to measure out 1 gram accurately, you could then separate that into two equal halves. Separate one of these into halves again for 1/4th of a gram. Repeat to one pile for 1/8th. Repeat one more time for 1/16th of a gram. 1/16th of a gram is just under 63 mg.

Or just put a quarter of a gram into 4 gallons of water.

7. ChickenCanoeFree Ranging

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Nov 23, 2010
St. Louis, MO
I like the last suggestion.

8. casportponyTeam Tube Feeding Captain & Poop Inspector General

The package weighs 40 grams and the label says it will make 250 gallons medicated at 64mg, so it's 40 grams divided by 250 gallons = 0.16 grams per gallon. One teaspoon probably weighs 2.5 to 3.3 grams. It's your lucky day, 'cause I happen to have a pack of this that I acquired for my powder weighing experiment, so I will go weigh some. Best guess is that the per gallon dose will be about 1/16 teaspoon per gallon, but I'll go weigh it right now.

-Kathy

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9. casportponyTeam Tube Feeding Captain & Poop Inspector General

Have weighed a bunch of poultry medication powders, and all have weighed 2.6 to 3.3 gram per teaspoon.

-Kathy

10. YratIn the Brooder

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Jan 19, 2016
40 g in 250 gal is indeed 0.16 g/gal, but that's 160 mg, not 64 mg, so something is not adding up.

2.5 to 3.3 grams is a 33% difference! That's a large error to be working with, but it probably won't make any difference in the end unless it's a very powerful med.

Last edited: Feb 18, 2016