Other dehydration symptoms to look for include depression, sunken in eyes, cold limbs, white and dry gums, and lack of ability to stand or drink.
To prevent these levels of dehydration feed an electrolyte solution during every other water feeding or offer it free choice along with water to calves. Consistent replenishment of electrolytes is key to ensuring calves remain hydrated and healthy. Never add electrolyte powder to milk, always mix in water and feed since the water is every bit as important as the compounds found in the electrolyte powder.
Feeding electrolytes has many benefits, but those benefits only complement a high-quality calf feeding program. In addition to electrolytes, a proper feeding program should consist of water, colostrum, milk replacer and a calf starter/grower. During warm temperatures use a milk replacer specifically formulated for warm weather. Providing calves with an adequate plane of nutrition will allow them better fight disease challenges and to store body reserves and use them if they are stressed due to heat or for other reasons.