Snuffly rooster - MG or something else? Tylan 50 question

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Crowing
7 Years
Feb 25, 2017
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New Market, VA
I think this is Mycoplasma gallisepticum (MG) but is there something else it could be? Do you recommend anything besides rest, warmth and Tylan 50?

Looking for suggestions as to what's going on with my rooster, in case I have overlooked something. Been doing a lot of reading. Here are the details:

9.5 month old BCM cockerel is the only one showing symptoms in a flock with 5 pullets around the same age. My husband cared for them for 5 days while I was out of town; everyone seemed fine when I returned on Monday afternoon, 12/07 and on Tuesday 12/08. Wednesday morning I let them out and rooster had wet sneezes but no nasal discharge or weepy eyes that I can see. I cleaned the coop on Wednesday and opened the window to air out excess dust to rule out allergies.

Weather has been varying from 18 to 58, mostly cold but also rainy. Coop and run are dry. They only free range when supervised and only in an fence-enclosed area. We have wild turkeys roaming our property, but only song birds would've had access to the chicken area. Chickens free feed NCO grower soy-free and get a bowl of it fermented daily. Grit always available.

Because it was warmer, I left the roo with his girls until Friday evening when it was extra cold. Outside he would eat treats but not sure how much feed he was eating. He would sometimes be alert and sometimes drowsy. Started providing VetRX on his comb and waddles to help with breathing on Thursday. Brought him inside Friday evening because weather is getting significantly colder and he wasn't getting better; he ate treats then and he's calmly been resting in a dog crate in my home office today. He has not crowed since Tuesday - very unusual.

He has snuffly breathing (is that rales?), sometimes cough sounding noise and occasional wet sounding sneeze - no discharge and no gaping/yawning. The breathing sound is similar to the noise of a small coffee maker as it spits out the last bit of water through the filter.

Today, Saturday he has barely ate although he is drinking water on his own after I force fed a bit of Nutri Drench, water, and almost 1 cc of Tylan 50 orally (some spilled). I take that as a good sign. Poop seemed normal until this evening when it was green, because he didn't eat today. Crop seems normal but empty (except for the grit I can feel moving around in there). He is clearly tired. In fact, he curled up in my lap like a baby while giving meds. He's not usually cuddly although he is accustomed to being picked up.

I would take him to the poultry vet in a heartbeat if it wasn't Christmas weekend and an hour drive away. I'd be surprised if they answer the phone before Wednesday morning.

Does this sound accurate? The oral dose for the inject-able Tylan 50 (what was available locally) is approximately 1.2 cc 2x or 3x per day for 5 days, assuming a 6.5 pound rooster. I could go buy syringes (22 gauge, I think was what I read?) but I'm not comfortable giving injections if the oral route will work. I'm afraid I'll miss muscle and hit a vital organ like the crop, for example.

If the flock is not showing symptoms, is it OK to leave them as-is? The rooster is separated from the flock so less likely to infect them, but it seems weird that he was with them for 48 hours and they don't have symptoms, if this is infectious.

And yes I recognize that once he is better, I should maintain a closed flock for at least a year. I'm OK with that.
 
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The dosage I would give is 0.25 ml per pound 3 times a day for 5 days. That would be 1.63 ml for a 6.5 pound chicken. It can be hard to tell MG or mycoplasma gallisepticum from infectious bronchitis virus. Mix up some watery chicken feed and offer it to him to get more fluids into him. They do not drink well when they are sick. Rales are basically rattley breathing heard from mucus in the airway, due to a respiratory infection. He might need a little extra warmth while he is sick. Here is a good article that lists the 2 diseases and symptoms, along with those of other common diseases to read:
http://edis.ifas.ufl.edu/ps044
 
Thank you. Got a kitchen scale and discovered he's actually 4 pounds, so 1 cc was exactly right. This morning he has half-crowed and seems to have more energy, but still snuffly and sneezy. Ate treats and a little food and drank water. Cleaned out the cage a bit, gave 1cc of Tylan 50, and now he's laying down like a broody hen and making this curious sing-song noise in between sneezes. He's been doing this for the past half hour.

 
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Make that an hour and a half. Clearly not a happy camper this afternoon. Has anyone seen this before? Should I worry about Newcastle or gapeworm here? Maybe something stuck in his throat?
 
Gosh, he is having a time breathing in and out, but he doesn’t seem too panicked about it. It sounds like rales and stridor. I would have a look into his throat to see if you can see any mucus or any yellow plaques or something causing blockage inside there. Also note if it smells bad. You can certainly treat him for gapeworms with SafeGuard Liquid Goat Wormer or the Equine Paste (fenbendazole) at 1ml (1/4 ml per pound) given daily for 5 days. But chickens with gapeworms appear to have a panicked appearance trying to get their breath, and cannot usually eat or drink because of labored breathing. ILT, another viral respiratory disease can cause (pump handle respirations” where they arch their necks to breathe. They can also have bloody mucus they cough up and sling around. Newcastles is very rare, and normally not in the US, but there has been an outbreak in California this past year. He doesn’t look that sick, but who knows.
 
It would be good if @casportpony, @Wyorp Rock, @dawg53, and some others had a look at the video as well in case they have suggestions. @casportpony once told me about a bird who would get a mucus plug on his tracheal opening, and she would have to clean it off with a QTip to help him breathe.
That was my beloved Silver Phoenix. I sure do miss him.
 
Have checked his breath multiple times for sour crop but no smell at all. I used QTip to gently wipe his nostrils in case they were plugged and put some olive oil down him in case something was stuck. I figured if nothing else, it wouldn't hurt. He's definitely not panicked - more like uncomfortable and possibly unhappy away from his flock.
 
You would need an extra pair of hands to look inside his throat with a flashlight. Look for yellow plaques or white spots, or mucus. In the picture below the large opening is the trachea, and it may appear like a slit as well.

upload_2018-12-23_14-19-45.jpeg
 

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