Yes. It's not uncommon to background or stocker heifers for beef like what is done for beef steers.
Young cattle are veal.
Dairy farmers, in addition to milking cows, must also feed calves, feed heifers, breed their heifers/cows, grow the crops used to feed their animals, maintain farm machinery, provide veterinary care for their cattle, and maintain their farm's financial stability. Yeah, I know. That is a lot of work.
"Menudencias" are the internal organs of the animals (cows, steers, heifers) that are used after the slaughter for several uses, chemical, medical, feed, etc.
Energy consumption will increase as feed rate increases since rotating equipment must work harder to achieve the same grade of product.
A yearling bull, which is best used on heifers, can breed from 10 to 20 heifers in a breeding season.
Since yearling bulls are the best to use on heifers, and one yearling bull will breed from 15 to 20 heifers, you should have 4 bulls for your herd of 70 heifers.
Loose salt
Cattle like to eat (be it grazing or eating from a feed bunk or hay feeder), sleep, and mate (particularly bulls and cows/heifers that go in heat). That's about it.
When the heifers are at least 14 months old, you can put yearling bulls (15-20 heifers per bull for yearlings) in with them. Don't put your big mature bulls in with your heifers as this could cause problems later on.
Usually it is better to butcher a beef steer but heifers are okay.
Heifers.
D. G. Pellatt has written: 'Feeding straw to Friesian dairy heifers' -- subject(s): Feeding and feeds, Dairy cattle, Straw as feed