Sudden illness

zchic75

Chirping
11 Years
Jun 9, 2013
10
5
79
Anyone have any thought as to what is going on with my chickens?
I have 7 hens and a rooster that share a coop. The freerange on 4+ acres during the day. All were bought as babies in spring. (3 are olive eggers, 5 are sapphire gems)
Saturday morning one hen was dead in the nest box, no visible trauma, vent clean. I know sometimes it happens so I removed her and let the others out into their run. I usually contain them til noon so the hens lay in the coop and not all over the property.
When I went to let them out the were all lethargic, puffed up and looked terrible. I picked one up and tilted her to check her vent and she threw up a ton of Putrid smelling yellow liquid. She was barely moving at that point and died later that evening. I put a heat lamp in their coop and went ahead and put Corid in the water incase it was coccidia.
Sunday morning I cleaned the coop. Lost another hen that day.
One hen looks fine, all others have inflated crops and I massaged them all and made them throw up the contents. All are smelly and yellow. Everyone I have talked to said it would be rare for all of them to have sour crop and for them to die from it so fast. One more died Monday and the rooster and another hen today (they had been very sick for the last 2 days and I’m surprised they made it this long.
The are not coughing or sneezing, no watery eyes. Just lethargic, not eating, and the smelly crop.
I have 2 other chickens and ducks that live in a seperate coop. They are all fine. They freerange too, but stay in their seperate groups. They eat flock feed because of the ducks, and not the layer feed that I was feeding the sick birds.

1- their small yard they stay in for a few hours in the mornings was somewhat muddy from several days of rain, but not terrible
2- I bought a new bag of layer feed about 2 days before this. It looks and smells fine but ??? (I’m throwing the rest out)
3- they free range and could have eaten something to cause this.

The remaining 3 look better, one hasn’t really acted sick all along and has not had the inflated crop issue. The other 2 look better today than yesterday. I started dosing yesterday with metronidazole for yeast incase it is sour crop (I don’t know if it’s frowned upon, but several homesteading bogs said they used it with huge success and I figured I had nothing to loose ). Any thoughts would be appreciated. Photo of the 3 girls I have left.
 

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That's a tragic story. I'm afraid I can't offer any suggestions as to what might have sickened and killed so many of your chickens, but an animal testing lab could. Check with your local Dept of Agriculture for information as to the nearest state lab where you can get a necropsy on the next chicken that becomes sick. Refrigerate, don't freeze the body if the chicken dies or if a sick chicken is close to death, you might drive the chicken to the lab for them to euthanize and examine. You need answers.

By the way, providing your location in your profile affords you of far more help from us. I could have found your state lab, for one. We can also research deadly viruses in your area. Climate often offers clues, too. Need the location for that.
 

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