Chickens haven't laid eggs in 6 months

[Dominion]

I have about 20 adult chickens of various breeds and ages, all previously laying, that stopped in summer and have yet to start laying again. I've tried moving them around, restricting feed, overfeeding, feeding alfalfa as recommended by a neighbor, oyster shells, omega supplements, deworming with Wazine, still not a single egg. Not noticing anything strange in their manure.

Any thoughts or suggestions? I'm not inexperienced with chickens but I'm sure I'm missing something here. Thanks.

 

[sourland]

How old are they, what breed are they, and what are you feeding?

 

[LizzzyJo]

Is it possible that you have a few prolific and fast egg eaters in your flock?

 

[Dominion]

How old are they, what breed are they, and what are you feeding?

1.5-3 years old. Wyandotte, speckled Sussex. Dumar layer feed. Zero eggs. Previously laid in the spring and previous year.

 

[Dominion]

Is it possible that you have a few prolific and fast egg eaters in your flock?

No because some are separated from others and neither have eggs. No sign of eggshells, yolks etc

 

[sourland]

Both breeds are moderate producers, and as mature/aged birds it is not at all unusual for them to take a break in their laying cycle. When day light period increases they will start laying again but at a reduced rate from last year.

 

[Dominion]

Thanks. Is it odd for all of them of various ages and breeds to all stop in the summer and not lay still into December? Not a single egg. It seems off because some of the younger ones should give me one every now and then at least.

Both breeds are moderate producers, and as mature/aged birds it is not at all unusual for them to take a break in their laying cycle. When day light period increases they will start laying again but at a reduced rate from last year.