Lecture: Diarrhea in adult cattle

Question 1

Sudden onset diarrhea without Oral lesions

Answer 1

1. Salmonellosis
2. Winter Dysentery
3. Paratuberculosis
4. Coccidiosis
5. Arsenic toxicosis
6. Parasitism
7. Bovine Viral Diarrhea

Question 2

Sudden onset diarrhea with oral lesions

Answer 2

1. Mucosal dz
2. Rinderpest
3. Malignant catarrhal fever

*These is worstest

Question 3

Salmonella

Answer 3

• Most common cause acute diarrhea in adult cattle
• direct/indirect transmission
• vertical transmission: dublin

Question 4

Salmonella

CS

Acute cases

Answer 4

• CS
  
  • variable
  • dublin in mammary gland, lung, uterus, fetus
• Acute
  
  • drop milk prod
  • fever
  • lethargy, dec feed intake
  • watery, fetid diarrhea (blood, mucus, fibrin casts)
  • abortion

Question 5

Salmonella

DX

TX

Answer 5

• DX
  
  • Fecal culture: 3 negs is neg
• TX
  
  • Fluid therapy
  • NSAIDS
  • antibiotics if other involvement

Question 6

Winter Dysentary

about

Answer 6

• probs coronavirus
• explosive outbreaks diarrhea between october and april
• highly contagious
• high morbidity
• low mortality

Question 7

Winter dysentary

CS

Answer 7

• Acute fetid watery diarrhea
• ind signs resolve w/in 5 days
• herd recovers usually in 2 weeks

Question 8

Winter Dysentery

TX

Answer 8

• non-specific
• sometimes blood transfusion
• no prevention strategies
• sustained protection 2-3 years

Question 9

Johne’s Disease

about

Answer 9

• Mycobacterium avium subs paratuberculosis
• clinical onset 2-6 years of age
• prevalence
  
  • 70% dairy
  • 5-10% beef
• Protein loss
  
  • edema
  • weight loss

Question 10

Johne’s Disease

Control

Answer 10

• Keep Johne’s free herds free
• biosecurity
  
  • iso
  • quarantine
  • colostrum pasteurization
  • calving period

Question 11

BVD

Answer 11

• Pestivirus family Flaviviridae
• viral diarrhea
• repro
• persistent infection
• cytopathic and non-cytopathic