Are my Bond browns gonna only last 18 Months?

[Nats Chickens]

Please read links: https://poultryonline.com.au/nulkaba-hatchery/livestock/layers
http://poultryonline.com.au/wp-content/uploads/2015/02/Keeping-Poultry-for-Egg-Production.pdf
So, I have 3 Bond Browns, will they only lay for 18 months like it says? Or will being pets change that?

 

[cavemanrich]

They are referring to production economical time-line.
Sex link chickens produce very well, but do decline since they work HEAVY DUTY.
General life span of these is 3 to 5 years. After 18 months egg producers cycle out their chickens regardless of checking each chicken. They need to meet their financial goals. (hard reality) . A chicken that does not produce is a financial liability on those keepers.
I keep chickens as pets only. Heritage breeds tend to live 10 years or somewhere close to that. My longest was a Silver Sebrite, that lived 13. An Easter Egger lived 11 years, but could have lasted longer if not for a predator attack.
My last sex link lived about 3+ , but I'm not totally sure, since I got her full grown and no background info on her.
You will notice that after 18 months, the egg production will start to decrease.
WISHING YOU BEST,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

 

[Nats Chickens]

Thanks! We plan to get heritage breeds next...………..

 

[Cragg Klefor]

I rescue ex battery hens, 15 months old. Oldest I currently have are 3 yrs, still getting eggs every single day and it's December! Amazing little creatures.