For the past few months or so, I've had at least four girls experiencing egg issues. Three of them were laying soft-shelled eggs, or even expelling the inside of the egg while the shell only made it partway out (where I would have to pull the shell free). The fourth hen just stopped laying. The breeds involved are two RIRs and two EEs. The RIRs are just over two years old, as is one of the EEs. The other EE I took in from a friend who found her in the yard, so it is possible she is older than I think, but she's still pretty active, so I'm going to say she's under four or five. The rest of the girls, as far as I can tell, are laying fine (both my SL Polish, both my SL Wyandottes, my other EE, my Olive Egger, my Barred Rock, my Game Hen, my Buff Orpington, and my Buckeye). All these girls are either just over two years old or about to turn one year old. I do have one 8 year old Barred Rock who lays sporadically at this point, but from what I can tell, hasn't been laying soft-shelled eggs.
Here is what I know/have done so far:
1.) Most of the hens in question I either found in the nesting box after dark having just laid a soft-shell/shell-less egg OR I find the broken egg and sometimes the shell beneath them on the perch. So they are laying these eggs after dark.
2.) My one EE had what I thought might be an impacted crop (which I thought might have caused the no eggs issue), so I brought her in to treat/observe her and she expelled a clump of roundworms.
3.) Thinking the roundworms might be the root of the problem (impacted crop/hens not getting the nutrition they need so this causes eggs not to form well), I wormed them using SafeGuard (I'm in California and can't get a lot of the good stuff). I just finished the five day dosing a few days ago.
4.) One of the RIRs was acting sickly on Saturday, so I brought her in on Sunday and started treating her for egg peritonitis (since she had a swollen abdomen and was acting lethargic and at this point had a history of laying underdeveloped eggs). She also happens to look awful because, for some reason, she still hasn't had her first adult molt. She seems to be on the mend, though her abdomen feels a bit swollen still (but she is active and behaving normal except for the not laying eggs and I'm giving her amoxicillin twice a day and will do so until five days are up).
5.) I can't imagine this is a genetic thing - maybe for one of the girls, but not all four.
6.) I do have a chronic mite problem, but I wouldn't consider it an infestation. I'm constantly checking them for mites and when I do find the mites on their vents/tail region, I apply poultry spray (to them and their nesting boxes). Only a handful of the hens seem to have a mite issue and I can't see anything crawling on their perches when I'm in there at night with a flashlight.
7.) I feed them a mix of All Flock and Feather Fixer (if I can get it), and have been adding Game Fowl mix in for extra protein since I don't free range them. I make available oyster shell with the crushed shells of their eggs mixed in. I have a roo in with them and have read calcium can be bad for their livers.
Here is what I'm wondering and hoping someone might be able to tell me:
1.) One of the RIRs who is laying the soft eggs (not the one I was/am treating for egg peritonitis) I think just started laying the soft eggs. Could this be the stress of having worms and being treated for those worms?
2.) Since I just finished treating them, will it take a while for them to start laying again if the worms were the issue?
3) When I refill their oyster shells, some of them seem to pick out the crushed egg shells and ignore the rest or peck it out of the way. Could they be only eating the egg shells and ignoring the oyster shells, thus causing them not to get enough calcium? Should I stop providing the crushed egg shells so they have no choice?
4.) I don't think a predator is stressing them out. Their coop and run is Fort Knox and I spend a lot of time showering them with attention.
Okay. That's all I can think of right now. Sorry about the super long post, but I wanted to make sure I covered everything (and I may still be forgetting something ...)
Thank you!
Here is what I know/have done so far:
1.) Most of the hens in question I either found in the nesting box after dark having just laid a soft-shell/shell-less egg OR I find the broken egg and sometimes the shell beneath them on the perch. So they are laying these eggs after dark.
2.) My one EE had what I thought might be an impacted crop (which I thought might have caused the no eggs issue), so I brought her in to treat/observe her and she expelled a clump of roundworms.
3.) Thinking the roundworms might be the root of the problem (impacted crop/hens not getting the nutrition they need so this causes eggs not to form well), I wormed them using SafeGuard (I'm in California and can't get a lot of the good stuff). I just finished the five day dosing a few days ago.
4.) One of the RIRs was acting sickly on Saturday, so I brought her in on Sunday and started treating her for egg peritonitis (since she had a swollen abdomen and was acting lethargic and at this point had a history of laying underdeveloped eggs). She also happens to look awful because, for some reason, she still hasn't had her first adult molt. She seems to be on the mend, though her abdomen feels a bit swollen still (but she is active and behaving normal except for the not laying eggs and I'm giving her amoxicillin twice a day and will do so until five days are up).
5.) I can't imagine this is a genetic thing - maybe for one of the girls, but not all four.
6.) I do have a chronic mite problem, but I wouldn't consider it an infestation. I'm constantly checking them for mites and when I do find the mites on their vents/tail region, I apply poultry spray (to them and their nesting boxes). Only a handful of the hens seem to have a mite issue and I can't see anything crawling on their perches when I'm in there at night with a flashlight.
7.) I feed them a mix of All Flock and Feather Fixer (if I can get it), and have been adding Game Fowl mix in for extra protein since I don't free range them. I make available oyster shell with the crushed shells of their eggs mixed in. I have a roo in with them and have read calcium can be bad for their livers.
Here is what I'm wondering and hoping someone might be able to tell me:
1.) One of the RIRs who is laying the soft eggs (not the one I was/am treating for egg peritonitis) I think just started laying the soft eggs. Could this be the stress of having worms and being treated for those worms?
2.) Since I just finished treating them, will it take a while for them to start laying again if the worms were the issue?
3) When I refill their oyster shells, some of them seem to pick out the crushed egg shells and ignore the rest or peck it out of the way. Could they be only eating the egg shells and ignoring the oyster shells, thus causing them not to get enough calcium? Should I stop providing the crushed egg shells so they have no choice?
4.) I don't think a predator is stressing them out. Their coop and run is Fort Knox and I spend a lot of time showering them with attention.
Okay. That's all I can think of right now. Sorry about the super long post, but I wanted to make sure I covered everything (and I may still be forgetting something ...)
Thank you!