getting hens to start laying again

[Alden Chickens]

About a month ago we put the new pullets in with the 4 laying hens that were faithfully giving us 4 eggs a day. Even though the hens and pullets were introduced through a wire fence for a month before we put them all together as soon as they were in the same coop with no wire between them the 4 one year olds all stopped laying. After a month I am only getting an egg every other day or so. Is there any thing I can do to encourage them to get back to their job of supplying us with eggs until the new ones start?

 

[A Chicken Owner]

Feed then higher protein feed and if possible put a light in the coop and leave it on from bedtime to midnight. Hope this helps!