Veterinarians focus mostly on animals that become ill, such as those with pneumonia. In this
article, we look to the rest of the herd, to ask why most calves remain healthy despite sharing …

The aetiology and pathogenesis of bovine respiratory disease (BRD) are complex and
involve the interplay of infectious agents, management and environmental factors. Previous …

Objective Our goal was to determine whether admin-istration of Fusobacterium
necrophorum ssp. necrophorum into the jugular or portal vein will induce liver abscesses in …

Amongst the bacterial pathogens associated with the bovine respiratory disease syndrome
(BRD) in cattle are Mannheimia haemolytica and Mycoplasma bovis. The interaction …

Background This study explored the combined use of fever detection and thoracic
ultrasonography to identify calves with early onset bovine respiratory disease (BRD) …

Bacterial pneumonia causes significant economic loss to the beef industry and occurs at
times of stress and viral infection. Administering antibiotics to at-risk calves is often used to …

Many cattle infected with Mycoplasma bovis remain healthy while others develop severe
chronic respiratory disease. We hypothesized that inflammatory stimuli such as co …

Pneumonic mannheimiosis is a widespread respiratory bacterial disease of small ruminants
caused by Mannheimia haemolytica serotype A2. The disease is known to affect the …

Background Bovine respiratory disease (BRD) is a major problem affecting beef cattle after
arrival to feedlots. Alternatives to antibiotics are needed for prevention. Hypothesis …

La presente Tesis Doctoral “Pasteurella multocida asociada a la Enfermedad Respiratoria
Bovina” es un compendio de tres publicaciones que se corresponden con tres estudios …