Water intake during lactation increases significantly even over and above the requirement for milk. To produce 31l of milk and cow needs to take in an extra 57l of water. This is thought to be because of an increased loss from the airways, skin and faeces. | Water intake during lactation increases significantly even over and above the requirement for milk. To produce 31l of milk and cow needs to take in an extra 57l of water. This is thought to be because of an increased loss from the airways, skin and faeces. |