Yes most hens require mineral to form an adequate shell for the egg. If they don't have enough calcium the shell is thin and easily broken. If they get too much calcium though the shell can become too thick and the chicks can have a difficult time to hatch.
Cold weather does effect a hens laying. when the temperature is below 55 degrees or so this can effect a hens production. Mainly though the reduction in hours of daylight causes hens to stop laying. Anything below 14 hours of daylight will cause a hen to stop laying.
No you dont
The food they need is commercially called Layer Formula/Laying mash or Layer pellets This food has the extra Protein,calcium, minerals and vitamins needed for good egg/shell production.
if you want your hens to lay eggs during there off season they will need laying pellets but watch during spring and summer and they will lay an egg every other day --- experienced
No, not all hens cackle while laying.
no. they will lay without a rooster
Layers or Hens.
29 million
They shouldn't effect the process of laying eggs. It's always up to the hens attitude for that day.
No. They need to be kept warm. 99-100 degrees for 3 weeks
The hen who is laying will have an inflamed comb. When they stop laying or aren't laying yet, their combs become a pinkish-pale color.
About 20 weeks till they start laying, but my hens started at 16 weeks.