CRD and Tylosin

[fishbum]

It's clear that I have a CRD problem. Most are coughing and sneezing. A few remain unaffected and one has bubbles in his one eye. I ran a corse of Duramycin with no luck. Fed them yogurt ect and waited 10 days and ran a corse of Tetrox HCI admittedly dosed a bit high. Today is day 7. Some have gotten substantially better but the majority are still sick. So the question is how do I inject almost 50 birds 2x a day for 7 days with Tylosin?Is the Tylosin powder worth the $$? Any suggestions are appreciated.

 

[fishbum]

I think bubble eye is the original culprit and may get culled today

 

[Eggcessive]

If it is originally a virus such as infectious bronchitis, that has to run it's course over 4-5 weeks before they will get over it. Since mycoplasma or "CRD" can be one of the many secondary infections of bronchitis, that could be what is causing the eye bubbles. Getting a sick bird or two tested to see what they have for sure will help to know what to give them. The biggest problem medicating for a respiratory disease is getting sick chickens in winter time to drink enough of the medicated water. When you have 50 chickens though, it is nearly impossible. Consider your whole flock as carriers, and close the flock to birds leaving. A necropsy done on the bird you are planning to cull, could be done by your state vet to tell you what illness. Refrigerate the remains and ship it on ice, or take it to the state vet. Here are links for the state vet and for testing centers:
http://www.usaha.org/Portals/6/StateAnimalHealthOfficials.pdf
http://www.aphis.usda.gov/animal_health/nahln/downloads/all_nahln_lab_list.pdf

 

[dawg53]

It's clear that I have a CRD problem. Most are coughing and sneezing. A few remain unaffected and one has bubbles in his one eye. I ran a corse of Duramycin with no luck. Fed them yogurt ect and waited 10 days and ran a corse of Tetrox HCI admittedly dosed a bit high. Today is day 7. Some have gotten substantially better but the majority are still sick. So the question is how do I inject almost 50 birds 2x a day for 7 days with Tylosin?Is the Tylosin powder worth the $$? Any suggestions are appreciated.

Actually, you should only inject tylan once a day for 3 days, 5 days at the most depending on the severity of the MG. Injecting more than 5 days wont accomplish anything.
There is tylan soluable powder which is mixed in water. As mentioned by Eggcessive, sick birds wont drink and if they do drink the treated water, it's usually not enough to be effective. Additionally, birds drink less in cooler./colder months of the year.
http://ultimatefowl.com/wiki/index.php?title=Tylan
If you have 50 sick birds, I recommend that you cull all of them, disinfect everything with oxine, repopulate in the spring. Injecting 50 birds a day will become a full time job. Stress will set off symptoms again, and they will build immunity to the tylan. Then you'll have to continue with another antibiotic repeating the never ending treatment cycle all over again.

 

[fishbum]

Thanks for the input guys. All the birds seem to be eating and drinking fine. None are sluggish or puffed up or anything. Other than the raspy voices and sneezing they are great. Seems that all the younger ones I brought in this past fall are sick as well as some older pullets due to lay here shortly. All the birds were fine until we had 3 days of rain and the temps dropped substantially. I do ultimately think I am to blame for poor ventilation in the coop though. That problem has been rectified and the coop is much nicer in the morning. Don't know if the scenario narrows down the CRD issue or not. Thoughts?

 

[fishbum]

Also. When I said I did dose a bit high I dosed the water to manufacturers instructions but with the cold temps and a spring that runs through the back of the pens I also went ahead and made a mash with heavily dosed water and a bit of sugar. Then refused to let them out of the coops until the mash was gone. Thanks again for any input

 

[Eggcessive]

If you smell any bad odor around their faces, you could also could be dealing with coryza. These links for all common diseases is very good to compare all of the diseases and symptoms, plus they give suggested drugs for treatment.
http://edis.ifas.ufl.edu/ps044
http://msucares.com/poultry/diseases/diseases.html

Also here are a few links with more info about infectious bronchitis, mycoplasma gallisepticum, and coryza.
http://www.merckmanuals.com/vet/pou...view_of_infectious_bronchitis_in_poultry.html
http://www.merckmanuals.com/vet/pou...lasma_gallisepticum_infection_in_poultry.html
http://edis.ifas.ufl.edu/ps034
http://www.thepoultrysite.com/diseaseinfo/82/infectious-coryza

 

[fishbum]

No foul odors,swollen sinuses or mucus in the mouths or anything. I think killing all my birds including a few show birds is a bit over the top for a disease the NPIP doesn't even test for because its in every flock that touches the ground. With that said the only birds really that are sick are the "big hatchery" birds. I have others within a few weeks of the same age from smaller family farms and that and all of those birds are right as rain.

 

[fishbum]

Dawg I had just recently read on this site from what seemed a fairly well versed poster that Tylosin is to be given 2x a day as the drug is only active in the body for 8 hours. And a 5-7 day corse is recommended even though most symptoms recede within 3-4 days. Much like human antibiotics. Not saying you don't know what your talking about. Just what I read

Eggcessive, if the bronchitis just has to run its course should I just wait another week or 2 before I make any decisions on the next move

 

[Eggcessive]

You will tend to see Tylan dosage a little different in every source you look at since it is really only used off-label in chickens because of it being a cattle/swine medicine. Most sources say to give it by injection only for 3 days. Orally, it is given for 3-5 days, but some people will say not more than 7 days orally. There is a veterinarian drug book called Plumb'sVet Handbook that states dosage as 10-40mg per kilogram (every 2.2lb) once or twice a day. Keep in mind that many of us give dosage that has worked in the past. Most sources also say that if symptoms don't improve after 3 days, you may need to change medicines. Here are some links to read about dosage:
http://www.asp-inc.com/products/documents/prodinfo/t/tysol.pdf
http://www.drugs.com/vet/tylan-soluble.html
http://www.elanco.us/products-services/poultry/water-soluble-crd-control.aspx