Heat Stress: Why Are energy licking buckets a Valuable Asset for Ruminants?

When temperatures rise, livestock producers naturally think about watering, ventilation, or providing shade for their animals. However, the effects of heat stress often appear sooner than one might imagine and directly impact the digestion, performance, and well-being of ruminants. High-producing cows may already show signs of heat stress as early as 20 to 22 °C when humidity is high or nights remain warm
In this context, lick blocks offer a practical solution to help animals cope and support their digestive balance during the summer.

The first signs of heat stress do not necessarily result in an immediate drop in production. An increase in respiratory rate is often observed first , along with changes in feeding and drinking behavior.
This faster breathing is generally accompanied by a decrease in rumination. However, rumination plays a fundamental role in saliva production. Less saliva means less buffering capacity in the rumen, which disrupts the balance of ruminal fermentation.
Furthermore, animals tend to shift part of their feed intake to the coolest hours of the day. The amounts of forage and feed consumed over short periods of time then increase the risk of digestive imbalances.

When feed intake decreases due to heat, energy requirements are no longer optimally met. The most productive animals are particularly susceptible to this phenomenon.

In dairy cows, a decrease in feed intake can quickly lead to an energy deficit, resulting in particular in a decrease in milk production. In the longer term, metabolism, immunity, and reproduction may also be affected .

Maintaining a regular feed intake and preserving rumen function are therefore key priorities for limiting the effects of heat stress.

Using energy licking buckets during periods of extreme heat can help:

By helping animals maintain more regular digestive activity, energy licking buckets help sustain performance despite adverse weather conditions.
Beyond their nutritional benefits, energy licking buckets are also appealing because they ’re easy to use. They require no mixing or complex distribution and are generally well accepted by the animals. Providing them offers targeted support during heat waves or any other stressful situation.