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Bovine Respiratory Disease

Atypical interstitial pneumonia (AIP) before they see it is a deadly disease that often plagues cattle in feedlots, but the cause of this illness is largely a mystery.
Beef Cattle, Bovine Respiratory Disease, Livestock

Serotonin may be key to solving pneumonia puzzle in cattle

Data regarding serotonin with the human form of the disease could pave the way for research into AIP in cattle

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Pen riders move through the feedlot corrals on horseback, watching the cattle with a sharp eye. They are looking for illness, weaving through the herd day after day. They hear the animal with atypical interstitial pneumonia (AIP) before they see it. There’s a rattle in the heifer’s breathing and loud grunting. When they locate the […] Read more
calf in a barn stall
Animal Health, Bovine Respiratory Disease, Cow-Calf, Livestock

Stress, biosecurity and bovine respiratory disease

Bovine respiratory disease isn’t going away, but there are things ranchers and farmers can do to reduce disease prevalence

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Shipping fever. Bovine respiratory disease (BRD). Whatever name you give it, it remains the number one cause of death in feedlots. It pops up on cow-calf operations, too. The Beef Cattle Research Council’s website notes that BRD is a leading cause of death, illness and antibiotic treatment in calves from three weeks of age to […] Read more
Stress matters as it depresses a calf’s immune system and increases the risks of disease.
Animal Health, Bovine Respiratory Disease, Cow-Calf, Livestock, Research

Keeping calves healthy

Research on the Record with Reynold Bergen

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Cow-calf margins get tighter each time you feed a pregnant cow through the winter, only to have her calf die before weaning. Three leading causes of pre-weaning death loss are diarrhea, navel ill and bovine respiratory disease (BRD). Not all calf illness and death can be prevented, especially when the weather gets bad, but remembering […] Read more
Leukotoxin and lipopolysaccharides combined, in the throes of acute infection, are the virulence factors described as “the lips that deliver the kiss of death.”
Bovine Respiratory Disease, Vet advice

Vet Advice: Fatal pneumonia in adult cows

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Shipping fever caused by Mannheimia haemolytica is the most important respiratory disease of cattle in North America, particularly in feedlot animals that have been through the stressful marketing and assembly processes (Pathological Basis of Veterinary Disease). M. haemolytica biotype A, serotype 1 is the etiologic agent most commonly responsible for severe pulmonary lesions. Some investigators […] Read more
The veterinary term for feedlot dust pneumonia is acute interstitial pneumonia.
Animal Health, Bovine Respiratory Disease, Livestock, Vet advice

Dust a risk factor in calf pneumonia

Vet Advice with Dr. Ron Clarke

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When drought and the Great Depression introduced the 1930s, the wheat market collapsed. Oceans of wheat had replaced the sea of prairie grass that anchored the topsoil into place. Once the wheat dried up, the land was defenseless against the winds that buffeted the Plains. The term “dust pneumonia” originated during the Great Depression when […] Read more
Cattle need nearly three times as much oxygen as a similar-sized horse just to stay awake and lie around.
Bovine Respiratory Disease, Livestock, Research

Everything old is new again – treating chronic mycoplasma

Research on the Record with Reynold Bergen

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Cattle were ideally created (or evolved) to consume and digest high fibre diets. Whoever (or whatever) was responsible for designing the rumen so elegantly probably should have paid more attention to the respiratory tract. The design of the bovine respiratory tract makes it easy for BRD bacteria such as Mannheimia, Pasteurella, Histophilus and Mycoplasma to […] Read more
Swelling and yellow pus is visible in the vocal cords.
Bovine Respiratory Disease, Cow-Calf, Features, Livestock

Dealing with diphtheria in calves

Animal Health: The condition is serious enough that swelling can restrict breathing to the point of suffocation

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Diphtheria is an upper respiratory problem in cattle characterized by an infection or inflammation of the vocal folds. It can be serious if swelling restricts the airway and makes breathing difficult. Dr. Steve Hendrick of Coaldale Veterinary Clinic at Coaldale, Alta., sees quite a few cases of diphtheria in cow-calf operations and in feedlots. “It’s […] Read more
Dr. Edouard Timsit, University of Calgary faculty of veterinary medicine.
Beef Cattle, Bovine Respiratory Disease, Features, Livestock

Pneumonia: the disease that won’t go away

The three categories of pneumonia and how to tell them apart

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Environment, germs and immunity are top of mind when thinking of all the risk factors that could set the stage for pneumonia in cattle. The forgotten factor is one beyond producers’ control and the reason why pneumonia will always be a problem — anatomy. Bovine lungs are very small relative to the animal’s oxygen requirements, […] Read more

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