Experience tells me one is ahead to market all the male calves (bulls/steers) keep heifers born in first 30 days , if any, for
a particular year and use any income from sale of extra calves to buy the very best bull one can afford. Unless you have.
enough cows to have a closed herd there is the possibility of in breeding. We can go into 'line breeding' however; that can
be quite involved for a blog format. I am not saying you can't but it is best supported by larger numbers, time and data.
A good calf from every cow on time every year is not a bad goal. I wish you a prosperous future...