White Leghorn, behaviors and egg laying

[webbhomestead]

I have 7 month old white leghorns that are not laying yet, anyone have any idea why?

 

[junebuggena]

There are lots of things that can affect laying. More information would be helpful in solving your problem. First off, are you absolutely certain of their breed and age? Next, how many do you have, what is the coop size and run size? What are they being fed? Any treats, how often? Do you have any roosters?

 

[webbhomestead]

I have 3 leghorn hens, 1 rhode island red rooster and 1 rhode island red hen. they are in an a frame chicken tractor. I feed them dumor laying ration and treat with chicken scratch. I bought all of my hens at the same time at tractor supply in march. They all have a healthy appearance, except for one of my white leghorns may have a slight case of dry pox. That may be why none are laying. I noticed the black spot on her comb yesterday.

 

[junebuggena]

4 girls for one rooster might not be enough, especially if their coop/run is too small. The general guideline is 10 hens per rooster. And the general guidelines for space is 4 sq ft per medium sized bird (Leghorn types) or 5 sq ft per large breed (dual-purpose types). They need at least 10 to 12 sq ft of run space per bird.
If there isn't enough room for the girls to avoid a young rooster's constant attentions, it can cause them stress to the point where they don't lay at all.
Layer pellets are for actively laying hens only. It should not be fed to flocks with roosters and non-laying birds. The excess calcium will build up in their kidneys and eventually cause organ failure and kill the bird. A better choice would be a grower, flock raiser, or all flock type feed and supplement the laying hens with crushed oyster shell offered separately.
Scratch should be used sparingly, and not be more than 10% of the overall diet.
The black spot on the comb could be from another chicken pecking.

 

[webbhomestead]

The black spot looks like a black tumor, not sure though. I am working on their coop upgrade, a 10 foot loafing shed conversion. I have not tried the oyster shell yet though, they definitely need more room. I have 2 copper maran chicks free ranging experimenting rightht now. I think one is a rooster though. The hen is getting a little bigger, would it help if I temporarily caught her and put her with the other hens?

 

[junebuggena]

The black spot looks like a black tumor, not sure though. I am working on their coop upgrade, a 10 foot loafing shed conversion. I have not tried the oyster shell yet though, they definitely need more room. I have 2 copper maran chicks free ranging experimenting rightht now. I think one is a rooster though. The hen is getting a little bigger, would it help if I temporarily caught her and put her with the other hens?

If your coop is already too small, don't be adding in any more birds. Since Leghorns are typically prolific, early layers, I think it's clear that you are having some overcrowding stress going on.
Copper Marans males are fairly easy to spot early on. Only the boys get the dark red on their shoulders. If you don't absolutely have to keep them, I suggest rehoming both males. You don't have enough hens or space for them.

 

[DanEP]

Overcrowding and heat can both take a toll on laying, and I don't now about your area but around here the dumor layer has changed and I really don't like it. I've had way better luck with southern states layer and it's a buck cheaper here.but if your girls aren't laying yet I'd put them back on grower. The extra protein will help them to finish growing to a laying level of maturity.
With only 4 pullets two roosters is way too many and one may still be too many. I'd get rid of at least one rooster now and consider adding a few more hens after you finish the new coop. Even one rooster can be pretty stressful on just 4 hens.