Summer, calves, and water

Water quality and quantity are important to getting calves off to a good start

Water is an essential element for growth. Our core business as calf raisers is growth. Therefore, a central concern of every calf raiser is managing water consumption.
Ideally, our goal is to have optimum consumption of water by every calf every day. Realistically, most of us would settle for reasonably good water intake for most of the calves most of the time. This is especially important during warm summer months. During hot conditions calves spend more time standing than in cooler weather. In addition their respiration rate rises as outdoor temperatures go over 70°. Both of these hot weather behaviors mean increased water losses.

Water Quality Questions

Of course, overall water quality is a year around issue. Is the water supply free from harmful bacteria and parasites? Is the water low in noxious mineral contaminants that make it unpalatable? Let’s assume that the answer to these questions is, “Yes.” We are starting with clean, palatable water. But, having a good water supply does not equal good water for the calves. When hot weather arrives we often have to supply more water daily for our calves. If we are feeding from a barrel or tank that could mean extra trips.

Sometimes scrounging up a larger tank from around the farm solves the problem of extra trips. A word of caution! Be sure that this larger tank is clean. Be sure that it has not been used previously for fertilizers or chemicals. Even the transfer hose can be suspect. That length of 2” hose with quick attach fittings looks very tempting as a way to transfer water rapidly – but has it been used for transferring liquid fertilizer or spray chemicals? Better to be safe and check rather than take a chance and poison calves.

Another quality issue in summer comes from the condition of the calf water pails. If your calf enterprise is set up to use one set of buckets just for water (not feeding milk and water from same pail) then algae growth often is a common summer problem. That green scum seems to reduce water palatability. Weekly scrubbing of water pails is a good practice. Disinfecting the pails to reduce bacteria loads doesn’t seem to be worth while since the problem is primarily algae.

Water Quantity Questions

At one time we thought that water for calves less than two weeks of age was a waste of time. Then by observation we learned that some small calves do drink a fair amount of water. Frequently these calves are the ones that have diarrhea. Scouring, but otherwise healthy calves, need lots of fluids. Most of them seem to know of their need for fluids and will drink water to meet this need. Since these calves are aware of their needs before we even notice that they are scouring it makes sense to just provide plenty of water all the time to all young calves.

Rumen lining development depends on the end products of calf starter grain fermentation. This fermentation process works well when the calf eats starter grain and drinks water.
Grain without water does not ferment well. In order to promote early, rapid and efficient rumen development we want our calves to drink water (remember that the milk doesn’t go into the rumen, only water goes there).

Every calf raiser has observed that calf starter grain and water consumption go hand-in-hand. Calf eats more grain, drinks more water. Or, calf drinks more water, eats more grain. The order doesn’t matter. They go together. But summer heat is a problem. Generally, very hot weather hurts grain consumption, especially in the hottest hours. In order to promote the best grain consumption rate during summer we need to have plenty of water in front of calves.

This is especially true overnight as the temperatures go down and calves become more active in the evening and very early morning. Every calf raiser has been frustrated by the large quantity of water consumed by the oldest calves we have in individual hutches or pens. They are either being weaned or have been weaned recently. On hot summer days these nearly two month old calves often increase their water consumption from ten quarts to twenty quarts a day. For these calves a number of calf raisers have resorted to using five-gallon pails clipped to the hutch or pen. During the last week or ten days that these oldest calves are in individual pens or hutches the larger pail filled once daily provides continuous water at a reasonable labor cost.

Does this emphasis on water availability seem unrealistic? If it sounds impractical, remember that most of a calf’s growth is water. Remember that efficient feed conversion into body tissue depends on water. Disease free weaning depends on plenty of free-choice water the three weeks prior to weaning. Healthy calves depend on water in order to grow rapidly and efficiently.

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Offhaus Farms

Offhaus Farms

Batavia, NY

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