Bovine GI Tract 3 Flashcards
Which pathogen causes Wooden Tongue?
Actinobacillus lignieresii
How would you treat Wooden Tongue?
5-7 days of I/M Streptomycin
List four physical causes of saliva loss.
Foreign body in mouth or pharyngeal area (choke).
Rupture/Damage to pharyngeal area or oesophagus
Teeth problems
Facial nerve paralysis.
What is the clinical sign of Actinomycosis?
Hard painless swelling on jaw, may lead to dysphagia and weight loss
How should you treat actinomycosis?
With tetracyclines or traditionally sodium iodide I/V (no longer available)
What is pasture bloat associated with?
Rapid introduction of lush pastures (especially legumes)
Which breeds see pasture bloat more commonly?
Jersey more than Holstein
List four pathological features of pasture bloat.
Caudal carcass pale
Cranial carcass congested and haemorrhagic
Lungs congested
Oesophagus pale in thorax and congested in cervical portion
List three treatments for pasture bloat.
Antifoaming agents
Poloxalene
Simethicone emulsion
Oils
Detergents
What does grain bloat lead to in cattle?
Metabolic acidosis
What is the main clinical sign of free gas bloat?
Increased intrauminal pressure resulting in bulging of the left sub-lumbar fossa
When is chronic ruminal distenstion most commonly seen?
After weaning of artifically reared calves.
List five conditions that chronic ruminal distention can be a consequence of.
Chronic reticular adhesions
Vagal indigestion
Sand impaction
Alimentary tract carcinoma
Rumeno-reticular actinobacilliosis
List three indications of a rumenotomy
Removal of a foreign body
Exploratory surgery
Some poisoning cases
List three key elements in the aetiology of a displaced abomasum.
Anatomical position of the abomasum and other structures such as the rumen
Abomasal atony
Gas formulation within the abomasum
