- E. coli - F18 or F4 (K88)
- Recently weaned pigs
- Edema, sudden death, neuro signs, paddling/running movements
- tx = abx, supportive for dehydration & acidosis, switch to low protein diet;
Edema dz
- Erysipelothrix rhusiopathiae
- zoonotic
- tx: penicillin;
diamond skin dz
- porcine circovirus
- 6-18 weeks → weaned pigs in nursery or later
- Patchy dermatitis + icterus
- Not responsive to abx - hallmark = lymphoid depletion;
PMWS (Post-Weaning Multisystemic Wasting Syndrome)
haemophilus parasuis
- polyserositis
- Fibrinous, purulent inflammation of serosal surfaces, synovitis, meningitis
- Parenteral abx;
glasser’s dz
Staph. hyicus
- Exudative Epidermatitis
- 4-8 weeks & older pigs
- Opportunistic - Euthanasia if severely affected
- Can make wash & give systemic Penicillin & Dexamethasone;
Greasy Pig Dz
Brachyspira hyodysenteriae
- Dogs, mice & rats are short term reservoirs
- Swollen, edematous, hyperemic colonic mucosa
- Segmental lesions in L.I. → ileocecal junction
- Depopulation;
Swine Dysentery & Spirochetal Diarrhea
Lawsonia intracellularis
- 2-6 months or replacement animals & finishing pigs
- Thickened S.I. mucosa;
Porcine Proliferative Enteropathy
S. cholerasuis = septicemic - S. typhimurium = enterocolitic
- rodents & wild birds;
salmonella
3-6 month old grower/finishers
- Pars esophagea predilection site
- Risk factors: finely ground pelleted feed w/ lack of fiber → lack of layering in stomach;
gastric ulcers
trichuris suis
- outdoor pigs on dirt
- mucoid, hemorrhagic d+
- tx: NOT ivermectin;
whipworm
milk spot liver
- Coughing, dyspnea, ‘verminous pneumonia’, obstruction or gut perforation;
ascaris suum
Actinobacillus suis
- All ages susceptible
- grower stage mostly
- Shallow respiration, coughing, blood-tinged nasal discharge
- Fibrin on pleural surfaces, fibrous adhesions b/w lung & thoracic wall
- Mass Tx → Ceftiofur & Tulathromycin specifically approved in US;
Pleuropneumonia
Mycoplasma hyopneumonia
- Older nursery/grower pigs
- Chronic, persistent, intermittent cough;
enzootic pneumonia
orthomyxovirus
- Loud, dry cough - ‘barking’
- Jerky respiratory efforts, fever
- Prevent contact w/ birds;
swine influenza
Bordetella +/- Pasteurella multocida Type D
- Epiphora, sneezing, serous to mucoid nasal discharge, epistaxis
- Deviation/bulging of snout
- Drugs unlikely to eliminate & advanced lesions may not be reversible;
Atrophic Rhinitis
Aujesky’s
- Feral swine are reservoir
- piglets: hypersalivation, blindness, ataxia, seizures, death
- nursery: neuro & respiratory
- grower/finisher/adult: respiratory & repro
- Herd eradication;
pseudorabies
Vit E and/or Selenium Deficiency
- Best pigs in group
- Dull, reluctant to move, dyspneic, skin over withers cyanotic
- Tx whole group;
Mulberry Heart dz
