Faster-growing: The scientist may have selected for faster-growing cows in order to reduce the time it takes to bring them to market.
More resistant to disease: The scientist may have selected for cows that are more resistant to disease in order to reduce the need for antibiotics and other treatments.
More fertile: The scientist may have selected for cows that are more fertile in order to increase the number of calves that they produce.
Better-tempered: The scientist may have selected for cows that are better-tempered in order to make them easier to handle.
Any combination of the above: The scientist may have selected for any combination of the above traits in order to produce a new type of cow that is better suited to their specific needs.
