2yr Hens -- Reproductive Issues?

Flock_party

In the Brooder
Jul 9, 2020
27
8
26
Hello!

I've been having some issues w/my laying hens. They are almost two years old -- will be in May. I have lost two hens so far in the past month. The first one occurred while we were out of town for a weekend, so I didn't get to see the "buildup." All I know is that the day we got home, our (barnyard mix from Hoover's Hatchery) hen was puffed up and lethargic, not eating, etc. That night, she wouldn't roost w/the others, instead choosing to remain on the floor. I found her dead on the floor of the coop the next morning. This was in February. We chalked it off to a one-off thing; I wish we had necropsied her.

About two weeks ago, a barred rock from a local feed store (obtained at the same time, so same age) started behaving the same way. I noticed that she had parts of a soft egg hanging from her vent, so I jumped into treating it like an obstruction: soaked her, massaged, kept her in the dark, etc. She spent a week in the "hospital ward" before she seemed well enough to re-integrate. She has been doing OK since, but I'm not certain that she has ever laid again. She also was lethargic, but never to the same degree. She stayed chatty and fairly alert and active the whole time. Passed some white mucus from her vent for a few days, her abdomen has remained firm-ish since.

Two days ago, a white leghorn (our most productive layer) caught my eye in the coop. She has some mild prolapse and was getting some picking (so there was a little blood). I brought her inside, tucked the prolapse back inside, sprayed her w/some Vetericyn and kept her in the dark. She proceeded to take a steep decline yesterday. Despite being in the dark, she laid two soft eggs in the cage, one was just a skin, the other appeared to be a thin-skinned water balloon (with yolk). I noticed when picking her up to examine her vent, she would leak a clear fluid (very watery). Her abdomen remained soft. She went into the same lethargic, puffed up, not eating, eyes closed mode yesterday and died overnight. I found her this morning.

My question is: is this typical behavior for 2yr old chickens? They live in a tractor that moves around so there isn't too much of an issue w/parasites. They were wormed last summer when I noticed some actual roundworms in their stools. There was increased stress last fall/this winter as we started a second flock that was within about 20 feet, so they had visual contact w/a much larger flock (with roosters). We just integrated our two flocks together last week, but the issues began before the integration -- so the only one that could've been induced by the stress of integration is the leghorn. All our birds seem to have quirks. One of our other birds from Meyer (a leghorn mix) never fully recovered after her molt last year. Looks to have some yellowing on her face and her feathers never grew in as thick or lush....she looks scrawny. She's been this way since early last fall. Are these poor genetics? We bought a "production pack" from Hoover's Hatchery, so we did just get a random mix of things -- none of which seem true to any one breed. Could this be infectious? If it is, it is spreading relatively slowly, but causing a steep decline...and it's affecting their reproductive systems.

My biggest concern is spreading something around. My husband thinks that this could be a combination of poor genetics and having high production hens -- that this may just be the natural course for production birds. Two years of laying an egg every day does seem stressful. They have laid for three seasons (technically), because they laid through the entire first winter into summer with no slowdown. If it makes a difference, I have noticed that I get a soft egg about once a week or so -- which seems pretty often, but it's been that way since they started laying. I do provide layer pellets & oyster shell.

Anyone have any ideas?
 
Another note, for the leghorn -- she did have some "encapsulated" poop yesterday. It was almost raw sausage-like (gross, I know). No blood or anything, but a sickly brown/green color.
 
Your flock may not be getting the proper nutrients, especially calcium, if you're only letting them free range. I'd add calcium to their diets. The ones that are sickly, should be removed from the tractor and kept caged, so you can treat them and get them back to health. Give them a calcium pill every day and terramycin 1 pill per day for 4 days to clear up any infections. You can buy it at TS in the cattle section.
 
@rayrose

Sorry, I didn't include that they do have free access to layer pellets & oyster shell. We just keep them in a tractor to alleviate parasite load & to rotationally graze our pastures.
 
Have you ever noticed any chickens sneezing or having signs of a respiratory disease in the past? Or any wrinkled or corrugated eggshells? Exposure to infectious bronchitis virus can have an impact on egg shells, and reproductive issues. Are your chickens eating mostly the layer feed and not too many other foods? With a balanced feed and crushed oyster shell available, they should be getting enough calcium and vitamin D3. High production hens can suffer from a variety of reporductive issues. The best way to know what they die from is to get a necropsy through your state vet. Here is a good list of state vets to contact for more info:
https://www.metzerfarms.com/poultry-labs.html
 
No, nothing that indicates disease. There has never been any widespread signs of illness. No runny eyes, no sneezing, nothing. I am under the impression that it could be poor genetics. We bought a production pack through TSC's website & they ended up being a strange assortment of barnyard mutts. The only one that seemed true to a breed was a black sex link & the leghorn. The others were not true to any particular breed.
 

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