What is the primary method for removing hair from cattle?

The primary method for removing hair from cattle involves utilizing a hide puller. This tool is integral in the processing of hides, allowing for the efficient removal of hair during the preparation of the animal's skin for further processing. A hide puller works by gripping the skin and pulling it away from the body, effectively removing the hair in the process. This method is preferred in meat processing as it ensures that the hide can be handled systematically without damaging it, and it is effective in maintaining the quality of the hide for subsequent uses.

Other methods, such as blade shearing, flame torturing, and vacuum systems, are not standard practices in cattle hair removal due to various limitations or inefficiencies. Blade shearing is typically used for sheep rather than cattle and can be less effective on the thicker hides of cattle. Flame torturing, while sometimes applied to specific scenarios, poses safety risks and is not commonly used for cattle. Vacuum systems might be used for clean-up or removal of loose hair in specific contexts, but they are not a primary method for hair removal during processing. Thus, the hide puller is the correct choice for this procedure.