According to my situation, it is like this.

1. It costs about 3, yuan to buy a calf, and the ratio of Dagong 1, calf 16 and big cow 3 (for calf production) is up to you, totaling about 126, yuan;

2. To build a simple cowshed, it is suggested to use wooden columns as piles and surround them with wooden boards or canvas. This doesn't cost much, 3~5 thousand yuan is enough;

3. Planting cattle grass, which requires buying grass seeds and preparing a large field;

4. Cattle can be sold in two to three years, but several calves must be bought every year to form a green and yellow relay;

5. You need to prepare for at least two years of input time without output, and you should budget this part of the expenses.

I hope I can help you.