Do farmer separate black cows and white cows?

Only if they are purebred breeds and need to be kept as purebred animals to sell as replacement heifers and bulls. This is especially true when breeding a breed of bull to a group of cows that is the same breed as that bull. read more

Assuming you're talking about Angus and Charolais breeds (which are black and white breeds, respectively), crossing an Angus to a Charolais results in a grey calf. That grey calf will express the growth and muscling of the Charolais side, and the marbling and milk of the Angus side, among other traits. read more

The major animal used would be the horse and not so much the cow. With an Amish population of about 300,000, and a farming population of about 5% (2x the US average), this would give about 15000 Amish farmers. Assuming 1 draught animal per farmer and 20% being cows my estimate would be about 3000 cows used for power. read more

Steers will not have testes like bulls. Heifers have teats but no visible udder like cows do. Also, don’t rely on the color of a cow’s skin to determine if it’s a bull or a cow. A bovine’s breed, not its gender, determines it’s color. For instance, Angus cattle are typically black, Jersey cattle are brown and Holsteins are black and white. read more