Traumatic Reticulitis

Traumatic reticulitis is primarily a disease of adult cattle.

1. Cause:

It occurs when pieces of wire, or other sharp metal objects, which have been eaten by the cow along with its food penetrate the reticulum wall (as a result of the contractions during the cudding process).

The infection spreads along the wire to the surrounding abdomen, producing an abscess and adhesions. In some cases, the wire will penetrate into the chest of the animal causing abscess in the chest and in severe cases infection of the outside of the heart (pericarditis). Compression of the rumino-reticulum by the uterus in late pregnancy, straining during parturition, and mounting during estrus increase the likelihood of an initial penetration of the reticulum and may also disrupt adhesions caused by an earlier penetration.

2. Symptoms:

• Reduced feed intake.

• Reduced milk yield.

• Abdominal pain, reluctance to move.

• Shallow breathing.

• Moaning – sounds of pain.

• Initially temperature could be increased.

3. Treatment:

Treatment of the typical case seen early in its course may be surgical or medical. Either approach improves the chances of recovery.

Surgery involves rumenotomy with manual removal of the object or objects; if an abscess adheres to the reticulum, it should be aspirated (to confirm that it is an abscess) and then drained into the reticulum. Antibiotics should be administered preoperatively.

Medical treatment involves the administration of antibacterials to control the peritonitis and a magnet to prevent a recurrence.

In severely affected cases, particularly those with pericarditis, animals should be humanely slaughtered as soon as possible as treatment will almost certainly be ineffective.

Injections of anti-inflammatories can significantly improve cow wellbeing and help to restore the cow to normal production more quickly.

4. Prevention:

Preventive measures of traumatic reticulitis include avoiding the use of baling wire, passing feed over magnets to remove metallic objects, keeping cattle away from sites of new construction, and completely removing old buildings and fences. Additionally, bar magnets may be administered PO, preferably after fasting for 18-24 hr. Usually, the magnet remains in the reticulum and holds any ferromagnetic objects on its surface. There is good evidence that giving magnets to all herd replacement heifers and bulls at ~1 yr of age minimizes the incidence of traumatic reticuloperitonitis.

traumatic reticulitis

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