A 3 1/2 -month-old pub with oculonasal discharge and seizures was submitted for postmortem examination. Grossly, the lungs had cranioventral consolidation, and microscopically, 2 distinct types of inclusion bodies compatible with Canine distemper virus and Canine adenovirus type 2. Presence of both ...

An outbreak of bovine rabies occurred on a ranch when cattle were bitten by vampire bats. Microscopic lesions showed a nonsuppurative encephalitis with intracytoplasmic inclusion bodies. Immunohistochemistry demonstrated viral antigen in the brain, and monoclonal antibodies identified a serotype 1 (...

Multiple congenital anomalies were identified in a stillborn calf, including severe cerebellar hypoplasia and central nervous system abnormalities resembling the Arnold-Chiari syndrome of malformation of calves. The Arnold-Chiari malformation occurs sporadically and has little economic impact, where...

Histology and immunohistochemistry were used to analyse the lesions and distribution of Mycoplasma bovis antigen in the lungs of 18 naturally infected calves. Microscopic examination of pneumonic lungs revealed two distinct patterns of necrosis and inflammation. The first pattern was observed in six...

"Meconium aspiration syndrome" is a condition resulting in respiratory distress and the occasional death of newborn human beings. A retrospective study was conducted on 52 calves that were submitted for postmortem examination to the Atlantic Veterinary College, Charlottetown, Prince Edward...

Bovine feedlots are intensive production systems of significant importance in Mexico, United States of America and Canada. Respiratory diseases are the single most important cause of morbidity and mortality in feedlot cattle. Herein, the gross and microscopic findings in the lungs of cattle with unu...

OBJECTIVE: To evaluate the effect of 2 oxytocin products administered to sows at the onset of fetal expulsion on the integrity of umbilical cords, meconium staining, and piglet mortality. ANIMALS: 2099 neonatal pigs. PROCEDURE: 180 parturient sows were randomly assigned to 3 stratified groups of 60 ...

A 4-year-old, male Newfoundland cross was presented for lethargy, anorexia, and dysuria. The main clinical finding was an enlarged and painful prostate gland. While the dog was hospitalized, priapism developed. Following euthanasia, microscopic examination revealed that a carcinoma involving both bl...

Hypercalcemia was discovered in a 7-year-old, castrated male basset hound with a suspected nasal tumor. The dog died the day after admission and nasal carcinoma and disseminated intravascular coagulation were diagnosed on postmortem. Detectable levels of serum PTHrP support a diagnosis of hypercalce...

Rates and severity of meconium staining on skin and mcconium aspiration into the respiratory tract of porcine intrapartum stillbirths were determined in an intensively managed farm. Heartbeats, inspiratory efforts and umbilical cord morphology were evaluated at birth. The lungs of all intrapartum st...

Algal infections are rare in humans and domestic animals. Prototheca spp. and Chlorella spp. are among the most commonly reported. Herein, we present a brief review on Chlorella spp. infections and related pathologies and discuss this information including a natural case in a sheep in Mexico with a ...

Canine distemper and pulmonary sarcocystosis were diagnosed in a 10-week-old Rottweiler with 4-day history of diarrhea, vomiting, and weakness. Microscopic examination of the lung revealed bronchointerstitial pneumonia typical of morbillivirus infection. Also, numerous apicomplexan parasites were sc...

Meconium staining of the skin is a common event associated with fetal hypoxia, stillbirths, weak-born piglets, and neonatal mortality. Aspiration of meconium leads to meconium aspiration syndrome (MAS). This study was undertaken to assess the relationship between the degree of meconium staining of t...

The relationship between acute pulmonary cell injury and inflammatory response was investigated in rats killed 1, 3, and 7 days after tracheal inoculation with bacterial lipopolysaccharide (LPS). Inoculation with LPS induced an influx of polymorphonuclear leukocytes (PMN) and a mild increase in pulm...