Swine Diseases & Parasites Flashcards
Age and weight of weanlings/nursery
3-10 weeks old
4-25 kg
Age and weight of growers/finisher
10-26 weeks old
25-120 kg
Age and weight of breeders/adults
> 6-8 months old
>120 kg
Multisystematic diseases
Erysipelas Glasser's disease Salmonella PRRS Pseudorabies virus Vitamin E/ Selenium deficiency
One of the symptoms of this disease is diamond skin
Erysipelas
Scientific name for Erysipelas
Erysipelothrix Rhusiopathiae
Is Erysipelas gram positive or gram negative?
Gram positive
Chronic forms of this disease can cause valvular endocarditis
Erysipelas
Age and weight of neonates
0-3 weeks old
At what age should swine be vaccinated for prevention and control of Erysipelas?
Vaccinate at weaning and then every 6 months
What is the treatment for Erysipelas?
Penicillins
Tetracyclines
Glasser’s disease is aka
Polyserositis
Scientific name for Glasser’s disease
Haemophilus Parasuis
Is Glasser’s disease gram positive or gram negative?
Gram negative coccobacillus
How is Erysipelas transmitted?
Direct contact
Is Erysipelas zoonotic?
Yes
Diagnosis of Glasser’s disease
Culture
Suspicion from gross lesions
Treatment for Glasser’s
Penicillin V 7days before and 7 days after farrowing
Incubation period for Glasser’s
4wk-4months
Glasser’s is also associated with these diseases
PRRS
Swine influenza
When should you vaccinate for prevention and control of Glasser’s?
Vaccinate at weaning then again 3-4 wks later
Aside from vaccination, what else can be done to prevent Glasser’s?
Reduce stress
This disease is initiated by stress
Glasser’s disease
Signs for Glasser’s
- Fever, anorexia, depression
- Meningoencephalitis
- Polyserositis
- Polyarthritis
Is Glasser’s disease zoonotic?
No
Is Salmonella zoonotic?
Yes
Is Glasser’s endemic?
Yes
Is Salmonella endemic?
Low level endemicity
Scientific name for Salmonella
Salmonella Cholerasuis (mostly only in swine) Salmonella Typhimurium
How is salmonella transmitted from swine to humans?
Contaminated pork products
Diagnosis of Salmonella
Aerobic culture
Treatment for Salmonella
Neomycin in the feed/water for whole group
Naxcel (celtiofur) for individual
Prevention and control for Salmonella
Sanitation
All in-all out operation
Various vaccines (live avirulent)
PRRS means?
Porcine Reproduction and Respiratory Syndrome
Most important economic disease in USA
PRRS
Diagnosis of PRRS
Serology, virus isolation
IFA, IHC most common test used in US
Treatment for PRRS
Supportive care
Treat secondary bacteria
Control of PRRS
Closed herds
Change feed if contaminated by mycotoxins
RespPRRS vaccine
How is PRRS transmitted?
Direct contact
Incubation period for PRRS
4-8 days
Prognosis for PRRS
Young- bad
Adults- good
Pseudorabies is aka
Aujesky’s disease
Type 1 herpes virus
Pseudorabies
Is pseudorabies zoonotic?
No
Mortality of pseudorabies in baby piglets
100%
Mortality of pseudorabies in weanlings/growers
60%
Pseudorabies can cause this in adults
Stillbirth/ abortion
Incubation for Pseudorabies
2-6 days
48 hours in sucklings
Treatment for pseudorabies
None
Prevention for pseudorabies
Closed herd
Quarantine
Restrict wildlife
Vaccination
Diagnosis of pseudorabies
Necropsy
Serum neutralization
ELISA
The use of vaccination for this disease is regulated by the states
Pseudorabies
All animals over this age must be tested for pseudorabies
6 months
White muscle disease/mulberry heart disease is caused by this
Vit E/ Selenium deficiency
Clinical signs of vitE/selenium deficiency
Acute death (mulberry heart dz) Muscle weakness (white muscle dz)
Diagnosis of vitE/selenium deficiency
Necropsy
Diffuse hepatic necrosis
Liver selenium
Prevention or treatment for VitE/Selenium deficiency
Injected with vitE and/or selenium (Vitesel injection)
Supplementation of feed or drinking water (5-7 days)
Respiratory diseases
Atrophic rhinitis Swine influenza Mycoplasma pneumoniae Pasturella Verminous pneumonia