The one aspect of water utilization that has received considerable scientifi c attention in the past decade is the method of supply, driven more to
avoid excessive use than to determine the minimum physiological needs
of the pig (Brumm et al., 2000; Li et al., 2005). As the supply of water
becomes an issue in more pork-producing regions, and as the cost of handling manure increases, further investigation of water delivery methods
can be anticipated. As mentioned, compared with North America, Europe
has a longer history, greater experience, and more scientific support on
this topic.