Which hormone use in cattle is believed to reduce environmental impact?

The use of growth hormones in cattle has been shown to enhance feed efficiency, allowing animals to gain weight more rapidly while consuming less feed. This increased efficiency can lead to a reduction in the overall resources required for beef production, including land, water, and feed. By improving feed conversion ratios, growth hormones help to minimize the carbon footprint and environmental impact associated with cattle farming, as fewer resources are used to produce the same amount of beef.

This approach aligns with sustainable agricultural practices, as it seeks to maintain productivity while mitigating negative effects on the environment. In comparison, the other hormones listed do not have the same direct correlation to the reduction of environmental impact in beef production.