# My bottle of Corid has mold growing in the cap!?

Discussion in 'Emergencies / Diseases / Injuries and Cures' started by twoacresofhappy, Sep 30, 2013.

1. ### twoacresofhappyIn the Brooder

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Mar 18, 2013
Georgia, USA
I need to treat my 17, 5-week old chicks for cocci. I pulled out my bottle of Corid - bought earlier this year, and expires in 2017 - and there is mold in the cap. Possibly some of the spores have dropped into the medication, too. Is it safe to use, or should I get a new bottle?

Also, can I offer my chicks some plain yogurt while they're being treated for cocci?

2. ### BuffygirlIn the Brooder

I would deffinately not use the moldy stuff. You could take it back to where you bought it and see about a refund, since the expiration is so far away.
I don't see why you shouldn't feed yogurt to them. They will love you forever for it.

I buy the powder form of corid, so I don't need to worry about mold. Dosage is 1/2 tsp per gallon. That's a TEASPOON, not a TABLESPOON. I know you probably know that, but I want to be positive you don't overdose.

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3. ### casportponyTeam Tube Feeding Captain & Poop Inspector GeneralPremium MemberProject Manager

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The powder is actually 1.5 teaspoons per gallon (128 ounces), the liquid is 2 teaspoons per gallon.

This is what I know about Corid and Amprol dosing:
Here's the math, let me know if I made an error.

• There are 200mg of amprolium in every 1 gram of powder.
• 1 ounce = 3.5 tablespoons = 28.35 grams
• 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 20% 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 9.6% 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.

And if that doesn't convince people, here is another way I did it:

From:
http://www.asp-inc.com/products/documents/prodinfo/a/amp128.pdf:

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.

Facts
• 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.

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.

-Kathy

Disclaimer:
I have not checked for typos and errors.

4. ### cafarmgirlCrowing

Since things like yogurt, buttermilk etc. tend to coat the intestinal lining, which is why they can be helpful in slowing down the cocci protozoa if the birds are not yet being treated with Corid, it's best not to feed those things while you are treating. Wait until they are done with the course of treatment and then give vitamins and probiotics.

Edited to add: In the case of the moldy bottle of Corid bottle? I would start with a fresh one.

Last edited: Sep 30, 2013
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5. ### BuffygirlIn the Brooder

Casportpony, I understand your math. It makes sense. But when my girl had cocci, I read this: https://www.backyardchickens.com/t/548021/need-help-with-corid-dosage

1/2 tsp per gallon of water is what I gave my girl for 5 days, and she showed vast improvement on just the first day of treatment. Twoacresofhappy, do whatever you think, but 1/2 tsp is what I have used and what has worked for me.

As for the yogurt, I did not know this about it coating the intestinal lining. Well, you learn something new every day!

Last edited: Sep 30, 2013
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6. ### casportponyTeam Tube Feeding Captain & Poop Inspector GeneralPremium MemberProject Manager

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I know, that's the sort of stuff I read, too. Keep in mind that the instructions on the products sold in the US are for cattle, sheep and goats and they get less than poultry, which is possibly where some of the confusion came from.

Bottom line, it's all about the number of mg's of medicine in one gallon. So if people think the correct liquid dose is 2 teaspoons they should recommend no less than 1.5 teaspoons of the powder.

Amount of Amprolium (Corid or Amprol 20% 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 9.6% 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)
-Kathy

Last edited: Sep 30, 2013
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7. ### casportponyTeam Tube Feeding Captain & Poop Inspector GeneralPremium MemberProject Manager

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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.

-Kathy

Last edited: Sep 30, 2013
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8. ### twoacresofhappyIn the Brooder

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Mar 18, 2013
Georgia, USA
Thanks for each of your replies! I did discard the Corid bottle. The local feed store was out of Corid, so I bought Sulmet. I understand both treat Cocci, but differently. I'm following the dosing instructions on the back of the bottle (2 TB per gallon of water, IIRC), which is correct, I hope.

9. ### Wyandottes7Crowing

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Jul 24, 2013
Just be aware that Sulmet only kills two of the types of Coccidiosis. Corid kills all nine. So, it might work for your chicks, but there's a chance that it won't. If you don't see any improvement while using it, see if you can get some Corid.

10. ### twoacresofhappyIn the Brooder

41
1
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Mar 18, 2013
Georgia, USA
Thanks for that information, Wyandottes 7 - I wasn't aware of that.

Can Corid be stored in the refrigerator?