I completely agree with the book recommendation above. I have one for each of my animal types.
How much space do you have? Raising cattle is much much easier if you can keep them on pasture all year. Here is what we do... We have 120 acres that is split into three sections, all natural grasses. We alternate them about every 4-5 months between pastures to allow the rest to grow back. We supply them with a salt block and a mineral block. Grain is not necessary if you have a good pasture. Grain can also be a problem with bloating.
A couple of tips on cows:
1. Feed them lower quality hay. Expensive hay really doesn't have enough benefit to justify the price and cows have so many stomachs they can utilize much more of their feed then say a horse. Avoid Alfalfa unless it is a mix with grass.
2. Feed grain/hay if enclosed on the opposite side of the pasture or pen from the water. Cows will eat until they can't eat anymore and follow it with gallons of water. This can create serious issues. Best solution is pasture that they eat slowly all day or feed in smaller portions or on the other side of pen so they have to walk.
3. Fences must be well maintained. They will go through it. We run a single hot wire above our existing barbed wire.
4. From birth to plate is a minimum of 2 years, you want to pen the animal about 4-5 weeks before slaughter and feed lots of corn, begin to omit the hay. Optimum weight is 1100-1500 lbs.
They dont need a lot, just basically...salt, minerals, grass and fresh water at all times.
I raise Scottish Highlands. I love the breed, they are easy keepers and are naturally resistant to most disease. I do not medicate or vaccinate unless someone gets sick. Hope this helps, Good luck!