Evaluation of clinical and intestinal ultrasonographic findings in cows with Johne's disease

• Main Authors: mohammad tooloei, gholamali moghaddam, mohaddeseh fahimi
• Format: Article
• Language: fas
• Published: Islamic Azad University, Tabriz Branch 2016-05-01
• Series: Āsīb/shināsī-i Darmāngāhī-i Dāmpizishkī
• Subjects: Johne's disease; Cattle; Ultrasonography; Intestines
• Online Access: http://jvcp.iaut.ac.ir/article_523145_0e8e756a0dcc52750e5334ab94cd17fc.pdf

Paratuberclosis or Johne’s disease is an infection of small intestine caused by Mycobacteriom avium paratuberculosis characterized by persistent and progressive diarrhea, weight loss, debilitation, and eventual death in cattle. A suitable and rapid method for diagnosis of the disease in farms is not available. Trans-abdominal ultrasound is a rapid, clinical and non-invasive diagnostic method recommended for diagnosis of animals with chronic inflammation of the intestine. The purpose of the present study was clinical and trans-abdominal ultrasound examination of cattle infected with organism of the Johns disease. This study was done on 20 female Holstein cattle with consist chronic diarrhea and/or weight loss. All animals were blindly tested for Mycobacteriom paratuberculosis antibodies in blood samples by ELISA and also examined by trans-abdominal ultrasound for intestinal wall thickness. The result of the ELISA test showed that 35% of the samples had antibodies against Mycobacteriom paratuberculosis. The rates of chronic diarrhea, low body condition score and both of them in cattle with positive ELISA were 100%, 71.4% and 71.4%, respectively. In the trans-abdominal ultrasound examination, the intestinal wall thickness of the infected animals (7.9±1.54 mm), was significantly (p