This would depend on the breed, genetic diversity in parent stock, overall living conditions, regular health control and treatment if in need (worms and scaly leg mites!) etc.
I have hens that still lay regularly wonderful eggs for about 7-8 month per year at almost 10 years and 7,5 years, 6, 5 etc.
But I do not have any commercial hybrids whatever their fantasy names might be. Those often only last about two years and then decline mostly due to issues of their reproductive system or renal problems.
I have hens that still lay regularly wonderful eggs for about 7-8 month per year at almost 10 years and 7,5 years, 6, 5 etc.
But I do not have any commercial hybrids whatever their fantasy names might be. Those often only last about two years and then decline mostly due to issues of their reproductive system or renal problems.