Different aspects of the water in swine production are discussed in this article. The water consumption and the wastage and approaches can be taken to minimize the water wastage without lowering the pig performances and/or its welfare. Steps have to be taken to reduce the spillage by the pigs: first by selecting proper drinker design and also by adjusting to the pig drinking behavior and drinker operation. The diet of the animals can also be formulated in order to reduce unnecessary water consumption and be the closer to the animal’s requirements (lower salt content, lower dietary chloride and lower potassium concentrations, lower total nitrogen intake). Elements on water qualityand their effect on the production, water treatment and water medication are also discussed. Liquid feeding systems are also discussed and are presented as being efficient in the reduction of manure volume and improvement in the pig performances.

Different aspects of water utilization are presented and discussed. Water spillage and wastage can contribute to increasing the total volume of manure. Liquid feeding systems can be an avenue to reduce also water consumption however, no reduction are presented and special care has to be taken to these systems as all the feed manutention has to be done through pumps. The maintenance of such systems requires attention.