* "Mixed farm" is broad: A mixed farm could raise cows, pigs, sheep, chickens, crops, or any combination. There's no standard definition for how many cows a farm needs to be considered "mixed".
* Farm size varies: Some mixed farms are very small, while others are huge. The number of cows depends on the farm's size, its specific focus, and the farmer's goals.
To get a more accurate answer, you'd need to know:
* The size of the farm: How much land does it cover?
* The farm's focus: What are the primary products it produces?
* The farmer's goals: Are they focused on milk production, beef production, or something else entirely?
Let me know if you have more details about the farm you're interested in!