Bovine Respiratory Diseases Flashcards
1
Q
Respiratory Disease Complex
A
Also called Shipping Fever in adults
* most common cause of dairy cattle mortality
* occurs within 3 weeks of arrival to feed farm
2
Q
Respiratory Disease Complex
Infectious Agents
Viruses
(6)
A
- Bovine Herpes Virus (BHV-1)
- Infectious Bovine Rhinotracheitis (IBR)
- Bovine Respiratory Syncytial Virus (BRSV)
- Bovine Virus Diarrhea Virus (BVDV)
- Parainfluenza Virus (PI3)
- Coronavirus
3
Q
Respiratory Disease Complex
Infectious Agents
Bacteria
A
- Mannheimia haemolytica
- Pasteurella multocida
- Histophilus somni
- Mycoplasma bovis
4
Q
Respiratory Disease Complex
Clinical Signs
A
Early
* dry nose
* cows isolating themselves
* behavior changes
After
* fever
* depression / lower head
* anorexia
* tachypnea / coughing
* nasal / eye discharge
5
Q
Respiratory Disease Complex
Prevention
A
- Neuter / Deworm / Dehorn / Vaccinate calves before weaning
- Vaccinate calves before shipping
- Rest period after arrival (12-24 hrs, no more than 48)
- Provide water and hay once arrived
- Monitor temperature of cow
- Perform antimicrobial therapy
6
Q
Tuberculosis
A
- Reportable disease
- Diagnose with TB test - intradermal
- Test affected herds every 3 months
7
Q
Nasal Bots
A
Parasite of nasal passage and sinuses
* affects sheep more than goats
* treat by deworming with Ivermectin
8
Q
Nasal Bots
Migration
A
- Adult females deposit larvae near nostrils
- Larvae migrate to sinuses
- Sneezed out to complete life cyce
9
Q
Bovine Respiratory Syncytial Virus
(BRSV)
A
- Affects young cattle primarily
- Prevent with vaccines
- Diagnose by isolating virus - take paired serum samples 2-3 weeks apart
- Treat secondary bacterial infections
10
Q
BRSV
Etiology
A
Caused by Paramyxoviridae
11
Q
BRSV
Clinical Signs
A
- Fever
- Anorexia
- Depression
- Increased RR
- Nasal and Eye Discharge
