No eggs for 10 days

One of my Barred Rock hens died expectantly about 25 days ago. She was the head hen in charge. Looked like hemorrhagic fatty liver. There was a little "reorganizing" of the flock after her death. However, my other Barred Rock, hasn't laid an egg in 10 days and has only laid 4 eggs since the other hens death. She doesn't really look like she is molting and is acting normal. The other 2 hens (Welsummers) are laying about an egg every other day and look like they are starting to molt. What is going on?
Appreciate the advice.
Thank you.
Patty

 

I was giving them a handful of "chicken crack" this winter as a treat. But, this winter normally they are fed about a sandwich sizes bag of spent grains from a local brewery. Plus, free layer feed available any time. I have cut the sandwich sized bag of spent grains in half. But, once the garden is going strong I will feed them extras from there. I am growing kale and greens for them. They also get free access to grit and oyster shell. They also get some strawberry tops or veggie leftovers.

 

My husband opened her up. That is her liver in the upper right hand corner and below that is a huge blood clot.

 

My husband opened her up. That is her liver in the upper right hand corner and below that is a huge blood clot.

 

Do you think she will start laying soon again?

 

Sorry, I tried to attached the photo with my phone, but it wouldn't do. Let me try again here. The hens are just over one year old, we live in Colorado and I do not free range due to dogs and birds of prey in the area. Their run area is 8x8 wire top and 3x3 covered roof attached to the coop for the now three hens.