A cow needs how many pounds of water for every pound of dry matter consumed?

The correct choice indicates that a cow typically requires between 4 to 5 pounds of water for every pound of dry matter consumed. This ratio is important for understanding the hydration needs of dairy cows, which is crucial for their health and milk production.

When cows consume dry feed, they absorb nutrients that require water for digestion, metabolism, and overall bodily functions. Sufficient water intake is necessary for optimal milk production, as milk is composed largely of water. Ensuring that cows have access to adequate water is essential for maintaining their health and maximizing their productivity.

This understanding underscores the importance of providing a proper balance of water availability, especially in hot weather or during periods of high feed intake, as it directly influences both feed efficiency and milk yield.