Right! I guess they are exceptions because we cut them before eldery, not because biological reasons. Cows older than 4yo are an exception because we slaughter most of them before but they could live 5 times more.
> Cows older than 4yo are an exception because we slaughter most of them before
Huh? A heifer generally won't have her first calf before two years of age. If you are only getting two productive years out of your typical cow, you're doing something horribly wrong.
> Meat or beef cows live for 1.5-2 years in the commercial beef industry. However, the natural life of beef cattle is between 15-20 years. Heifers and cows (female cattle) often live for between 5-6 years as they breed to produce the next generation of beef cattle.
Todays milk caws are bred for producing a LOT of milk (30/60L/day), in comparaison those not bred for that produce 4L/day. However this quantity does not keep vealing after vealing and they became unprofitable soon.
https://www.starnewsonline.com/story/news/2009/06/13/airlie-...