As global temperatures continue to break records and the Northern Hemisphere enters its hottest period — what traditional wisdom calls the Major Heat solar term — cattle producers worldwide are facing an invisible crisis. Heat stress in cattle is not merely a comfort issue: it is a physiological assault that dismantles productivity from the inside out. Milk yields crash, feed intake collapses, immunity erodes, and in severe cases, animals die. The global livestock industry now loses an estimated $60 billion annually to heat stress, and as climate change intensifies, the toll is climbing fast.

Summer brings persistent high temperature and high humidity weather to global waterfowl farming areas, creating optimal breeding conditions for mold and mycotoxin proliferation. Duck and goose farms across North America, tropical Africa, Southeast Asia and South America are facing severe seasonal waterfowl mold contamination crises.

During the annual hot and rainy seasons across East Africa, West Africa, Southern Africa and tropical Central African pastoral regions, stagnant water wetlands, humid grasslands and soaring temperatures trigger frequent and explosive outbreaks of sheep black disease (infectious necrotic hepatitis). Sheep farmers in core African breeding countries including Kenya, Tanzania, South Africa, Nigeria and Ghana are facing a severe seasonal epidemic crisis: healthy grazing sheep suddenly develop persistent lethargy, mental depression and deep coma, and die acutely within 12 to 48 hours with almost no obvious pre-morbid symptoms. Most local African pastoralists lack professional veterinary identification capabilities, easily misjudging sheep black disease sudden death syndrome as heat stroke, enterotoxemia or blackleg, leading to delayed prevention and treatment, repeated epidemic outbreaks and massive irreversible flock economic losses.

With the arrival of the Summer Solstice, global pig-raising regions enter a high-risk breeding season characterized by extreme high temperature and high humidity superposition. Intensive and pastoral pig farms in Southeast Asia, North America, and tropical Africa are facing a severe outbreak of multiple concurrent swine diseases.

In summer high-temperature seasons, 75-90 day-old growing free-range chickens face the highest heat stroke risk in the whole breeding cycle. Free-range chicken heat stroke featured with limb paralysis, persistent watery droppings, rapid panting and coma has become the top fatal disease for outdoor stocked flocks.