When the outside temperature rises, it’s not just the climate inside the barn that changes. Heat stress directly affects the health, feed intake, and performance of poultry. Especially in laying hens and fast-growing broilers, even a few hot days can lead to lower production performance and higher mortality rates.
By taking timely action, you can significantly limit the consequences. In this blog, you’ll learn how to recognize heat stress, why poultry is so susceptible to it, and what management and nutritional measures can help keep your birds healthy and productive.
Why is poultry so susceptible to heat stress?
Unlike humans, chickens cannot sweat. They mainly dissipate excess heat by breathing faster and adjusting their behavior.
When temperatures rise and humidity is high, this natural cooling system becomes less effective. The body uses more and more energy to cool down, leaving less energy available for growth, egg production, and immunity. The result is a chain reaction that affects both animal welfare and the bottom line.
How can you recognize heat stress in poultry?
The first signs are often subtle, but they deserve immediate attention.
Please note the following, among other things:
- rapid breathing or panting with an open beak;
- spread wings to dissipate heat;
- less activity;
- lower feed intake;
- higher water consumption;
- animals gathering around water lines or ventilation systems.
In laying hens, the following symptoms may also occur:
- lower egg production;
- thinner eggshells;
- lighter eggs.
In broiler chickens, the following is often observed:
- slower growth;
- poorer feed conversion;
- higher dropout rates on hot days.
What causes heat stress?
High outdoor temperatures obviously play an important role, but it’s usually a combination of factors.
Common causes include:
- high temperature and high humidity;
- insufficient ventilation;
- limited air circulation;
- a high occupancy rate;
- insufficient cool drinking water;
- foods that produce a lot of heat during digestion.
It is precisely that combination that determines how much stress animals are under.
Practical measures that make an immediate difference
Good preparation prevents many problems.
Optimize the barn climate
- Ensure adequate ventilation.
- Check the airflow.
- Prevent hot spots in the barn.
- Keep the humidity as stable as possible.
Provide unlimited access to cool drinking water
During hot spells, water intake increases significantly. Therefore, check the following regularly:
- the capacity of the drinking lines;
- the water temperature;
- the water pressure;
- the system’s hygiene.
Adjust the food
During heat stress, animals eat less. That’s why every kilogram of feed needs to provide as much nutritional value as possible. Consider, for example:
- a higher energy density;
- easily digestible ingredients;
- support for gut health;
- supplements that support the body’s natural defenses.
Why Nutrition Plays an Important Role
Heat stress does not only cause a decrease in feed intake. It also puts strain on the intestinal wall, metabolism, and fluid balance. Feeding strategies that include natural betaine and vitamin C can help animals cope with this physiological stress.
Research shows that natural betaine can help with, among other things:
- better osmoregulation;
- support for gut health;
- more efficient use of water in the cells;
- maintaining performance in hot conditions.
Vitamin C also helps the body cope with oxidative stress, which increases during hot weather.
What solutions does Jodoco offer?
Depending on the situation, different products can be used.
| Product | Support |
|---|---|
| Jodobet® | Natural betaine that supports osmotic balance and contributes to healthy intestinal function during hot weather. |
| Jodoplume | A combination of natural betaine and organic acids to support metabolism, gut health, and feed efficiency. |
| Pure C Beta | A combination of vitamin C and natural betaine to support the immune system and protect against oxidative stress. |
These products can be administered through feed or drinking water, depending on your farm’s specific circumstances and the advice of your nutrition specialist.
Conclusion
Heat stress is an annual risk in the poultry industry. By recognizing early warning signs and adjusting the house climate, drinking water, and feed accordingly, many negative effects can be mitigated.
Feed solutions containing natural betaine, organic acids, and vitamin C can be a valuable addition to good management practices.
Would you like to know which approach is best suited to your business? Contact the specialists at Jodoco for personalized advice on heat stress, nutrition, and drinking water support.
