Different symptoms in all birds that are sick

Zsuzzzs

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Hi All!
I have 2 flocks right now, only a fence separates them (they are able to touch each other). One of them is 8 of my old laying hens, 10 (now 9) pullets that I hatched 22-30 weeks, and two 3+ year old roosters, mixed flock. The other is now 27 18-22 week mixed pullets that I hatched, and one 30ish week old BCM rooster that we bought 5 weeks ago, who is the only one who's vaccinated.
The first death after they were out of the garage was in the middle of the summer, when we still had the cockerels, one 13 week old Cream Legbar cockerel had a sudden death, no symptoms, no nothing. Then 6ish weeks ago another CL cockerel was seen lethargic, so I separated him, but in 3 days he gave up. The rest of the cockerels were culled at 16 weeks, as planned, no symptoms outside or inside at all.
A month ago some of them started to sneeze/caugh, so both the flocks received parasite-medicine, then probiotics, then it didn't improve so they got antibiotics and another type of probiotics again. Some poops became runny, yellow-greenish, but in general they seemed good, most of them still do. Until some Cream Legbar pullets started to act lethargic, one had her eyes swollen so I separated her. The next day a leghorn pullet couldn't stand, but she had appetite, and otherwise was active. Still separated her also. She didn't improve in 3 days, so we helped her to the other side, not to let her suffer (I can't feed and make her drink every couple of hours with two small children, one being just one year old a day ago). Then an older (22 week old) Cream Legbar pullet from a completely different hatch suddenly was dead in the other flock (the only one from that flock). 2 days later the swollen eyes one also died, though it seemed she improved, she was more active, had seen her eat and drink alone for days. This was last week.
Now I have an olive egger that's neck is in a position of sleeping, but she stayed like that for 2 days so I also separated her. She only drinks if I put drops on her beak, and she refuses to eat even scrambled eggs.
My hens are laying, obviously not a lot because it's autumn and moulting season, but a stable 4 eggs from 8 hens are coming. Also two 22 week old Silverudds started to lay. But my 30 week old marans pullets did not.
Their appetite certainly grew the last couple of weeks, and most of the sick ones or sudden dead ones were in good weight, and had their comb red.
FYI we are also struggling with mice under the coops, trying out best to eliminate them.

I have no freaking clue at this point of what am I dealing with. Can it be Marek's? But only 2 of the 6 is showing paralysis symptoms. Or am I dealing with different things at once? If this pullet dies I definitely bring her to an autopsy, to be sure if it is Marek's or not. Any ideas from anyone?
I can disinfect the feeders, drinkers, the coops, but I see no chance for disinfection os the run. 2500 sqft of dirt...

Thanks in advance.
 
Did it all start after you introduced the vaccinated rooster? Did you quarantine the rooster? What are you feeding them?
No, the 2 cockerels died way before the new rooster was introduced. No, he wasn't quarantined - but even if I did, he is vaccinated so I wouldn't have the chance to see if anything is wrong, he's here for 5 weeks now and thriving.
I'm feeding with home made layer feed of corn, wheat, peas, sunflower seeds (also dried ones for extra protein) and a premix which gives all the necessary supplements plus I give them probiotics, and other things for their well being. Please note I'm in Hungary, Europe so I don't necessarily have the same things as in the US.
 
Wry neck, paralysis, sudden death, green droppings, being lethargic, and eye issues are all signs of marek's. It can present differently in each bird, so it sounds like marek's is going around. The coughing could be a separate respiratory disease in the flock or reaction to a high-dust environment. When you say they were a good weight, were you weighing them out previously to conclude that they didn't lose weight? The green poo is almost synonymous to weight decline. The rats could well be the ones who brought marek's contaminated material into the flock.
 
So if it is Marek's should I eliminate both the flocks and give up for at least 6 mos?
 
I can't see anything wrong in what you feed them. My doubt is if a bird vaccinated for marek will shed the virus or not. If you manage to have a necropsy done, it would be useful to know if it's marek or not. If it is, it would answer the first question.
 
I can't see anything wrong in what you feed them. My doubt is if a bird vaccinated for marek will shed the virus or not. If you manage to have a necropsy done, it would be useful to know if it's marek or not. If it is, it would answer the first question.
The one vaccinated rooster would be more hearty against the disease but can still catch and spread the disease at a less infectious rate. I highly doubt the new rooster is the cause of the outbreak because it seems to have been causing death for a while before he was introduced to the flock. However, if he got it from now being in the flock he'd be carrying it for the time he is infected.
 
So if it is Marek's should I eliminate both the flocks and give up for at least 6 mos?
I am not sure that would work. You could wait it out and cull ones that get paralysis or wry neck and continue with the surviving members. There is little chance you will be able to get rid of the remnants of marek's in the dirt, coop, etc. in just half a year. Start buying vaccinated or previously exposed and surviving birds if you want to add to your flock. Get chicks vaccinated. Add a skirt that goes in to the ground at least a foot to get rid of more rats coming in to your coop if you don't already have one.
 
I always read to eliminate the flock if it's Marek's. So I can keep the surviving ones (maybe 50 percent ?) just mind that obviously not giving away birds, and keep in mind only vaccines birds can enter the flock. Isn't it irresponsible in a way that my chicken keeping neighbours flocks can get the disease as well? Or they will get it even if I eliminate my flock completely?
 

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