FDA recommendations: http://www.accessdata.fda.gov/scripts/animaldrugsatfda/details.cfm?dn=013-149 "Chickens
Indications: For the treatment of coccidiosis.
Amount: Administer at the 0.012 percent level in drinking water as soon as coccidiosis is diagnosed and continue for 3 to 5 days (in severe outbreaks, give amprolium at the 0.024 percent level); continue with 0.006 percent amprolium-medicated water for an additional 1 to 2 weeks."
Copy and paste from a post I did:
Here's the math, let me know if I made an error.
There are 200mg of amprolium in every 1 gram of powder.
200mg x 28.35 = 5670mg in 3.5 tablespoons of powder.
There are 10.5 teaspoons in 3.5 tablespoons
There are 21 1/2 teaspoons in 10.5 teaspoons
5670mg divided by 21 1/2 teaspoons = ~270mg per 1/2 teaspoon
There are two 1/4 teaspoons per 1/2 teaspoon
270 mg divided by 2 = 135mg per 1/4 teaspoon
Amount of Amprolium (Corid or Amprol) powder per 1/4 teaspoon
One 1/4 teaspoon = 135 mg
1/2 teaspoon = 270 mg
3/4 teaspoon =405 mg
1 teaspoon = 540 mg
1 & 1/4 teaspoons = 675 mg
1 & 1/2 teaspoons = 810 mg
1 & 3/4 teaspoons = 945 mg
2 teaspoons= 1080 mg
Amount of Amprolium (Corid or Amprol) liquid per 1/4 teaspoon
One 1/4 teaspoon = 120 mg
1/2 teaspoon = 240 mg
3/4 teaspoons = 360 mg
1 teaspoon = 480 mg
1 & 1/4 teaspoons = 600 mg
1 & 1/2 teaspoons = 720 mg
1 & 3/4 teaspoons = 840
2 teaspoons = 960 mg
There are 4.92892ml/teaspoon, but the numbers above were calculated using 5ml/teaspoon
Here is what's in 1-10ml of the liquid
1ml = 96mg
2ml = 192mg
3ml = 288mg
4ml = 384mg
5ml = 480mg
6ml = 576mg
7ml = 672mg
8ml = 768mg
9ml = 864mg
10ml = 960mg
Bottom line, 1 teaspoon (540mg) of powder is equal to 5.625ml of liquid and 1/2 teaspoon powder (270mg) is equal to 2.8125ml liquid.
1/2 teaspoon of 20% powder = 2.8125ml of 9.6% liquid - Both have 270mg of amprolium.
3/4 teaspoon of 20% powder = 4.21875ml of 9.6% liquid - Both have 405mg of amprolium.
1 teaspoon of 20% powder = 5.625ml of 9.6% liquid - Both have 540mg of amprolium.
1.5 teaspoons of 20% powder =8.4375ml of 9.6% liquid - Both have 810mg of amprolium.
1.75 teaspoons of 20% powder = 9.84375ml of 9.6% liquid - Both have 945mg of amprolium.
2 teaspoons of 20% powder = 11.25ml of 9.6% liquid - Both have 1080mg of amprolium.
And if that doesn't convince people, here is another way I did it:
Dosage Level Mixing Directions
0.024% Dissolve 8 ounces of AMPROL 128 20% Soluble Powder in about five gallons of water in a 50-gallon medication barrel. Stir, then add water to the 50 gallon mark. Stir thoroughly.
0.012% Follow same directions as above but use 4 ounces of AMPROL 128 20% Soluble Powder.
0.006% Follow same directions as above but use 2 ounces of AMPROL 128 20% Soluble Powder.
One pack = 10 oz. (283.5 grams)
One ounce = 28.35 grams
One ounce of powder = ~3.5 tablespoons
200mg amprolium per 1 gram
My twisted math for the .024% level
If 8 ounces (28.35g x 8 = 226.8 grams) are needed for 50 gallons, then 1/50 of that is needed for 1 gallon, right? So that would be 226.8 grams divided by 50 = 4.536 grams per gallon. (doing this as I type, so correct me if I'm wrong, please!)
So how much does a teaspoon of Corid or Amprol powder weigh? Anyone know? Well, time to break out my gram scale and do some weighing... also have a call into the mfg of Corid and I'm expecting a call back from them.
Just got a call back from them and it is 4.536 grams per gallon. He also said that it's a very safe product and the risk of overdosing is very slim.