Swine Flashcards
Pseudorabies
Herpes virus reportable Aujeszky’s disease
- Inhalation transmission
- Young animals - CNS - anorexia, tremors, incoordination, blindness
- Weaned - CNS + Resp - coughing, dyspnea
- Grower/finisher - Resp - coughing sneezing, nasal discharge
- Older - reproductive failure
- Cowdry type A inclusion bodies*
- no treatment; biosecurity
Swine Influenza
Influenza Type A virus
- Respiratory - coughing, pyrexia, sneezing, nasal discharge
- Necrotizing bronchitis
- tx: prevent secondary bacterial infection
Transmissible Gastroenteritis
Corona Virus
- 100% mortality in piglets <10 days
- D+ and V+
Porcine Parvo
World wide cause of fetal death with no signs in Sow
- still births and mummified
- vaccination
Classical Swine Fever
Pestivirus hog cholera reportable
- Closely related to boarder disease (sheep) and bovine viral diarrhea
- Oral ulcers
- coughing, discolouration of skin,
- Paresis/paralysis
- Constipation –> D+
- Abortions/stillbirths
- Convulsion tremors in newborn
- Hind limb weakness
- Fluorescent antibody
Porcine proliferative enteritis
Lawsonia intracellularis
- Acute hemorrhagic diarrhea - pasty brownish/black
- Severely thickened and inflamed ilium - Fibronecrotic casts
- tetracycline
Streptococcus suis
Zoonotic
- Meningitis - lameness, paralysis, paddling, shaking and convulsions
- reddening of skin
- Pyrexia, depression, wt loss
- Blindness; deafness
Actinobacillus pleuropneumoniae
- Young animals < 6mo
- Vasculitis and hemolysis at lungs; blood tinged fluid from nostrils
- Acute death
- Fibronecrotic and hemorrhagic lung lesions
- Enrofloxacin
Glassers disease
Haemophilus parasuis
- Polyarthritis, polyserositis
- pyrexia, pneumonia
- convulsions, sudden death
- Fibropurulent inflammation, meningitis
- ceftifur
Mycoplasma species (x 4)
M. hyorhinis (young) - arthritis
M. hyosynoviae (old) - arthritis
M. suis - anemia
M. hyopneumoiae - pneumonmia
Ascaris Suum
roundworm
- 2-3 month old
- intestinal obstructions w/ heavy load
- fibrotic liver lesions (white spots) - icterus, unthriftiness
- verminous pneumonia - dyspnea, thumps (abdominal breathing)
- tx: ivermectin, fenbendazole, pyrantel
Oesophagostonum
Strongyle
- intussusception - V+, no stool
- Tachycardia, restlessness
- Colic
Stephanurus dentatus
Kidney worm
- posterior ataxia/paralysis
- slow growth
- Parasites near or in kidney - ova found in urine
Trichinella spiralis
Nematode Zoonotic
- Larvae encysts in muscle
- can infect all species - humans from eating uncooked meat
Strongyloides ransomi
Threadworm
- anemia, D+, emaciation, death
- fecal float test
- Benzimidazole or ivermectin
Greasy Pig disease
Exudative Epidermitis
Staphylococcus hyicus
- Requires abrasion or injury to be introduced into the system
- Young pigs (5 - 60 days)
- Depression, anorexia,
- Thickened and red spotted skin
- Macules around eyes, lips, nose, and ears –> pustules
- Exudation of serum –> crusted exudates
- Erosions of the coronary band and heel
- Penicillin and cephalosporins
Clostridium perfringens Type A and C
- 1-7 day old
- small intestinal hemorrhage - watery yellow/red D+
- healthiest piglets affected first
- vaccination of sows prior to birth
Clostridium difficile
- 1 - 2 day old
- pasty yellow watery D+
- antibiotic treatment at birth
E. coli
- 1 - 14 day old
- yellow D+ (gas and fetid odor)
- tail necrosis
Rotavirus
- 1-5 weeks
- Gray, pasty feces with poorly digested food
Corona virus
Transmissible gastroenteritis
- All ages
- Vomiting
- D+ w/ undigested milk
- Biosecurity preventative
Intestinal coccidiosis
Isospora suis
- 5-15 day old
- fetid yellow to white D+
- Sheep pellet feces
- occysts in faeces
- Sulfamethazine or paonazoril
Swine dysentery
Brachyspira hyodysenteriae
- Older pigs (> 25kg)
- mucoid large bowel D+ w/ blood
- Gray mucous layer or yellow necrotic debris in large intestines
Trichuris suis
Whipworm
- 3 months and up
- Found in cecum and large intestines
- hemorrhagic diarrhea
- double operculated eggs
- Levamisole
Salmonella
All ages
- fever, yellow D+ (necrotic debris)
- rectal strictures
African Swine Fever
Reportable
Asfivirus
- oronasal vs ingestion of contaminated meat
- Pyrexia, lethargy, weakness
- Blue blotching of skin
- Ocular and nasal discharge
- V+; D+
- Abortion
- Death
