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Tylan (Coryza?) question

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cloverfarmgirl

cloverfarmgirl

In the Brooder
10 Years
Jul 8, 2009
28
0
22
Hi... I'm new to the group. I have a backyard flock of 45 chickens in SC. On Saturday, I found one of my 1yo hens dead. The next day, I noticed several gasping, rattling in their throat, standing around with their eyes closed, and not eating/drinking. I feel like it's probably Coryza. It's spreading rapidly, as about 15 are showing symptoms, now. I put Duramycin (Tetracycline) in their water, but I bought the injectible Tylan-50 to give the sicker ones something since they're not drinking. In one BC posting, I read that the dosage is 1.5 cc for a 10 pound bird...which I gave them last night (in the loose skin behind the neck). Then, this morning, I see two separate postings where the dosage is 1/2 cc (not sure if that is once or twice a day). Anyway, if that's correct, I overdosed them last night -- gave them 3 doses at one time! This morning, they don't appear to be any better. Could I have done more damage? Can someone tell me exactly what I need to do? I'm so afraid this is going to wipe out my entire flock if I don't get it stopped. Any help would be appreciated.
 
Well, I doubt you have a 10 lb bird for that 1.5 cc dosage. Most are about 6 lb if standard sized. 1/2 cc for a standard is the right dosage, if I recall. I dont know how long to treat them with Tylan, though. If you gave them that much and they aren't improved, that's not a great sign, IMO.

Why do you think it's Coryza? Do they smell bad? Just wanted to mention that if it is, you need to close your flock, no birds in and none out, since Coryza is a carrier disease.
 
Find out what is wrong with your birds before you just start throwing meds at them. This can create "superbugs".

If it is coryza, it will be smelly. Coryza recovered birds will be carriers.

It is most likely ILT, I don't think coryza kills that fast. ILT recovered birds will also be carriers.

Find an avian vet or talk to the Dept of Ag in your area and get the birds tested. Then make a decision as to what to do.
 
I have to agree. It's a bad thing to throw antibiotics at birds who may actually have a viral disease, immune to those meds.

Truthfully, my policy is never to give any antibiotics to any birds except for injuries.
 
I have used Tylan last month with great results, this is what I did. I have all large fowl Standard Cornish 10lbs easy, I used 1cc for evey adult bird injected directly into the breast once a day, then alternating the injection site everyother day. you have to administer this drug for 5-7 days and 10 day's before you see any improvement. All of my infected birds are doing great now, your 1.5cc dose will not hurt them, but if you under dose you will do more harm than good and the problem will continue to linger.

AL
 
Thank you all for your responses. I really appreciate the advice. You're right in that they could have ILT or any number of respiratory disorders. A couple months ago, I brought in some 12 week old barnevelders. Soon after I brought them home, one came down with this same respiratory disorder (at least the symptoms were the same) and died several days later. That was about 6 weeks ago. So, I'm not sure if I already had the disease in my flock or if they carried it in. Maybe I can find a vet around here to do a necropsy on the next one I lose, which I expect to be anytime, so I'll know exactly what I'm dealing with.

If it is a carrier disease, how do you disinfect a barn and pasture, where they live? They're on grass and dirt. Is this always something I'll have to deal with, even if I have future chicks? Are the eggs safe after all this treatment?
 
I've heard that infectious laryngeotracheitis birds throw blood. Is this every case? That's the first thing I thought of, too, when I read the description.

Coryza tends to have a very distinct and nasty smell to their sinuses and breath. Are you smelling that?

Are there any bubbles in the eyes? Any swelling of any part of their eyes - their conjunctiva, their face, anything?

definitely I'd recommend testing.

If you get a necropsy done on a bird you've lost, rinse them in cool water to cool down the body temp. Don't wash any gunk off if there is any (pus, mucus, droppings) - just cool their body. Pat dry and refrigerate, don't freeze. Freezing causes the cells to distort which can interfere with the integrity of tissue samples for microscopic examination.

Also if your vet gives antibiotics, or state guy, have them do a culture and sensitivity - both. The culture tells you exactly what bacteria, the sensitivity tells you exactly what kills that bacteria. This might require a live bird that you "sacrifice" to the testing process.

I'd highly recommend it.

p.s. an ag school in your state can help you find economical testers and vets that specialize in poultry and won't just be guessing.
 
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I do notice a smell around the chickens. Their eyes are swollen shut on some, and they have runny diarrhea (reddish in color, possibly blood). While I was trying to use a dropper to put water in one of their mouths, she spit out watery, white mucus. Thanks for letting me know about the necropsry procedure. I have never had to do that, and didn't know how.
 
I never thought about consulting an ag agency (duh!). That's a great idea. There is actually a place about 10 miles from here -- Clemson Extension (from an ag college). I'm going to call them tomorrow. I really would like to have a true diagnosis, so I know what I'm dealing with.
 

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