Heat Stress in Sheep, Goats and Camels: A Hot-Climate Guide

Heat stress happens when animals gain more heat than they can lose. In sheep and goats the first signs are fast, open-mouth panting, seeking shade, drooling and eating less; camels tolerate heat far better but still suffer without water and shade. Prevent it with constant shade, plenty of cool, clean water, feeding in the cooler hours and no handling or transport in the midday heat.

In the Gulf, Sudan and the Sahel, summer is not a short heatwave: it is several months of high temperatures, often with hot winds and, in coastal areas, high humidity that makes cooling harder. Heat stress costs money long before any animal dies. It lowers feed intake and growth, reduces milk, damages ram fertility and can cause abortions and weak newborns. A herd that comes through summer in good shape starts the breeding and selling season ahead.

How heat stress shows, from mild to severe

Animals cool themselves by panting, sweating (camels and, to a lesser degree, goats) and by moving to shade and water. When that is not enough, body temperature rises. Learn the stages:

Some animals are more at risk: heavy fattening lambs, dark-coated animals in full sun, heavily pregnant ewes and does, newborns, animals with long or thick fleece, sick animals and those recently transported. Camels handle heat well thanks to their body design, but calves, lactating females and animals deprived of water are still vulnerable.

Emergency: an animal collapsing from heat

If an animal is staggering, lying flat with its head stretched out or breathing with great effort:

1. Move it gently to the deepest shade with moving air.
2. Wet the legs, belly and neck with cool (not ice-cold) water and let air flow over the body.
3. Offer small amounts of water if the animal can swallow; never force water into its mouth.
4. Call your vet. Severe heat stroke can damage internal organs even after the animal seems to recover.
5. Record the case so you can check later whether the problem is in one pen, one group or one time of day.

Do not drive a collapsed animal on foot and do not load it into a hot vehicle.

Shade, air and water: the three foundations

Shade for every animal at the same time. At midday all animals want the shade together. If the shaded area is too small, the weakest end up in the sun. Roofs should be high enough for air to move, and light-coloured or insulated materials stay cooler. Natural shade from trees is excellent where available.

Air movement. Closed barns trap heat and ammonia. Open sides, ridge vents and, in intensive Gulf farms, fans or evaporative cooling help a lot. In humid coastal areas evaporative cooling is less effective, so air movement matters even more.

Water, water, water. Water needs rise sharply in summer, and an animal that cannot drink stops eating. Practical rules:

• Several water points so dominant animals cannot block others.
• Troughs in the shade; water in the sun becomes hot and animals drink less.
• Clean troughs often: algae and warm, dirty water reduce intake.
• Check pipes, floats and tanks every day; a blocked float in August can kill.

For detail on daily volumes and planning, see our guide on water requirements for livestock.

Feeding and handling in the hot season

Feed in the cool hours. Give the main meal early in the morning and in the evening or at night. Digestion itself produces heat, so animals eat more readily when the air is cooler.

Adjust the ration. Coarse roughage produces more heat during digestion than concentrate. Many breeders shift the ration balance in summer and keep minerals and salt available. Discuss changes with a nutritionist or vet rather than making sudden switches.

Plan work around the clock. Vaccinations, weighing, sorting, hoof trimming and loading belong in the early morning. Shearing sheep before the peak of summer helps them cool, but leave enough fleece to protect the skin from sunburn.

Transport at night. Move animals in the coolest hours, with fewer animals per vehicle than in winter, shade and ventilation, and water before and after the trip. Never leave a loaded truck standing in the sun.

Protect fertility. High heat around mating reduces ram fertility and can affect conception and early pregnancy. Many breeders avoid planning mating in the hottest months or make sure rams have the best shade. If you plan a season, our breeding season plan shows how to place it on the calendar.

A daily summer routine with records

Heat problems are often local: one pen with poor airflow, one trough that runs dry in the afternoon, one group fed at noon. A short routine makes them visible:

• Morning check: water points working, troughs clean, shade intact.
• Midday walk-through without disturbing animals: count open-mouth panting.
• Evening: feed delivered, water refilled, any sick animal noted.
• Weekly: look at feed intake and weights for each group. A group that stops gaining in July is telling you something.

In Throf you can assign these checks as tasks to workers, record meals and water, log any heat-related illness or death on the animal's record, and compare weights by group on the dashboard. Over a few summers you learn which pens, groups and months need extra attention.