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Seasonal Change and Sheep Colds: Runny Nose, Refusing Feed — Don't Ignore It Before Pneumonia Sets In
添加时间：Oct 26, 2026
  • Seasonal Change and Sheep Colds: Runny Nose, Refusing Feed — Don't Ignore It Before Pneumonia Sets In

Every spring and autumn, the same scene plays out on sheep farms: a ewe stands apart from the flock with a runny nose, drooping ears, and a feed trough that stays full. Many producers shrug it off as “just a cold.” But in sheep farming, a neglected sheep cold is the doorway to pneumonia in sheep — one of the most costly respiratory diseases in the industry. Here is why seasonal transitions trigger colds, how a simple runny nose turns into secondary pneumonia, and how VIBOV EZee BREATH supports respiratory recovery in sheep and goats.

Why Do Seasonal Transitions Trigger Sheep Colds?


Sheep colds rarely come from a single cause. They are almost always the result of a sudden change in the animal's environment: a warm day followed by a freezing night, cold drafts blowing through the shed, wet bedding after autumn rain, or the stress of transport, shearing, or regrouping. Any one of these can overwhelm the sheep's respiratory defenses within days. Cold weather also forces sheep to burn extra energy simply to stay warm, leaving less for immune defense — another reason a cold snap so often ends in a coughing flock.
The respiratory tract is the sheep's first line of defense against the outside world. Cold air and stress slow the tiny hairs and mucus that trap and remove inhaled pathogens, leaving the airway lining exposed. Research consistently links pneumonic pasteurellosis — the most dangerous bacterial pneumonia of sheep — to stress, with stress-associated mannheimiosis mortality reaching 10% to 40% [1]. Traditional Chinese husbandry describes the same process in simpler words: sudden cold “attacks the lungs” when the animal's defensive energy, or qi, is low.
The seasonal windows are predictable: early spring, when cold nights follow mild days, and late autumn, when temperature swings widen sharply. Knowing this, producers can act before symptoms ever appear.


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Recognizing a Sheep Cold: The Signs You Should Never Miss

A sheep cold develops quietly, and its early signs are easy to confuse with normal behavior. Watch for:

  • Clear nasal discharge in sheep — the first and most reliable signal;
  • Tearing eyes, sneezing, and an occasional soft cough;
  • A slight rise in temperature and noticeably faster breathing;
  • Reduced appetite — the sheep visits the trough but eats little, or stops eating entirely;
  • Listlessness: head lowered, ears drooping, back arched, and shivering, especially in the early-morning and evening cold [2].
Because sheep are herd animals, a single sick animal usually means others have already been exposed — check the whole flock, not just the most obvious case.
Official veterinary extension materials confirm the same picture: nasal discharge, tearing, coughing, faster breathing, fever, and falling feed intake, with affected animals shivering in cold air [2].
The key question is whether the cold is getting worse. When nasal discharge turns thick and yellow-green, fever climbs, breathing becomes labored, or the sheep refuses feed for more than a day, call a veterinarian immediately.



From Runny Nose to Pneumonia: The Dangerous Cascade

Most sheep colds start with viruses or mild stress, and a healthy sheep can recover within days. The real danger is what happens next: secondary pneumonia. When the cold weakens the airway lining and mucus thickens, bacteria that normally live harmlessly in the nose — above all Mannheimia haemolytica and Pasteurella multocida — multiply and descend into the lungs.
The numbers are sobering. In a field study of 722 sheep and 750 goats, pneumonic pasteurellosis reached a morbidity rate of 57% in sheep and a mortality rate of 22%, with a case fatality rate as high as 38% [3]. Lambs and older ewes — animals with weaker immunity — are hit hardest.
Once pneumonia is established, treatment becomes expensive, recovery is slow, and some animals never return to full production. That is why the saying in sheep country is simple: never let a cold “wait until tomorrow.”



The Real Cost of “Waiting It Out”

The economics of a delayed sheep cold are unforgiving. A few days of “watching” can mean:

  • A ewe that loses weight and condition just before the breeding or lambing season;
  • Higher treatment costs, because routine antibiotics no longer work once deep lung infection is established;
  • Death or culling in the worst cases — 22% mortality in affected sheep flocks in one major field study [3];
  • Contagion risk, as sick sheep shed bacteria that threaten the rest of the flock.

Prevention and early support cost a fraction of treatment. In sheep health management, the cheapest medicine is the one given before the disease takes hold. And in an outbreak, the damage is never limited to the sick animals: the whole flock loses condition, weight gain slows, and market schedules slip by weeks.

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Mucus Is the Core Problem: Clear the Airway, Save the Lung

Whether the cause is viral, bacterial, or weather-related, one feature connects every case: thick mucus. As the airway lining becomes inflamed, mucus turns stickier, blocks small airways, traps bacteria, and — critically — prevents antibiotics from reaching the infected lung tissue where they are needed most.

Traditional Chinese veterinary medicine has long treated respiratory disease in sheep in this order: first “resolve phlegm and open the airway,” then fight the pathogen. Modern respiratory therapy follows the same logic, using mucolytic expectorants to thin and loosen mucus so it can be coughed out, easing breathing and letting antibacterial treatment work where it counts. This is precisely the mechanism behind VIBOV EZee BREATH.


Meet VIBOV EZee BREATH: Respiratory Support Designed for Sheep and Goats

VIBOV is a national high-tech enterprise with 15 years of experience in the research, development, production, and international trade of feed additives, and a member of the China Feed Industry Association. Its business covers more than 80 countries and regions across Asia, Europe, the Americas, and Africa, serving more than 3,000 large-scale breeding companies and feed groups [5]. Guided by the concept of antibiotic reduction, VIBOV develops natural, data-driven solutions for global animal husbandry. With export volume ranked at the forefront of the Chinese feed-additive industry for ten consecutive years, VIBOV applies the same quality standard to respiratory care for small ruminants.
VIBOV EZee BREATH is a mucolytic expectorant formulated for poultry, pigs, cattle, horses, sheep and goats. It fluidifies mucoid secretions in the respiratory tract — especially in the lungs after a respiratory infection — and supports their expulsion from the airways [4]. Its multi-species range and flexible administration make it a practical choice for mixed farms.
In practice, this means three things for a sheep farm:
  • Breathing eases, as thick mucus is thinned and cleared from the airways;
  • Antibiotics penetrate infected lung tissue more effectively, improving the outcome of veterinary treatment;

  • It works as supportive therapy alongside antibacterial treatment for CRD, CCRD, pneumonia, and other respiratory diseases [4].


How to Use EZee BREATH During the Seasonal Transition

  • General prevention: 1 ml per 4 L of drinking water.
  • Treatment: 1 ml per 2 L of drinking water; may be used continuously for 5–7 days.
  • Aerial spray for quick relief: 100 ml in 20 L of water, applied with a fine nozzle or aerosol generator.
  • Precaution: do not use simultaneously with live vaccines; withdraw EZee BREATH before live vaccination.

  • Shelf life: 3 years in the original sealed container; store in a cool, dry place away from direct sunlight.


Conclusion: Protect the Flock Before the Season Turns

Sheep colds are predictable, and pneumonia in sheep is preventable. The runny nose and empty feed trough that appear every spring and autumn are the flock's earliest warning — act early, clear the airway, and support the immune system before bacteria move in.

VIBOV EZee BREATH gives sheep farmers a simple, safe way to do exactly that. Contact VIBOV today for pricing, technical support, and partnership. VIBOV — respiratory care built on 15 years of animal nutrition science.










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