Piglet diarrhea (Bromfield) Flashcards Preview

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Flashcards in Piglet diarrhea (Bromfield) Deck (23):
1

Colibacillosis

  • E. Coli
  • white scours/wet tail scours
  • up to 100% morbility 
  • 60-75% mortality
  • around 2-3 days of age
  • TX
    • fluid/electrolytes
  • DX
    • history, CS
    • response to Gentamycin
  • Control
    • vaccination for sows
    • All in all out

2

TGE

  • Transmissible Gastroenteritis
  • highly infectious viral disease (coronavirus)
  • all ages
  • Eipzootic morbidity: 100%
  • vx and dx: attacks villus
  • Enzootic: usually outbreaks in weaned kids
  • Necropsy: thin walled SI
  • No tx
  • vaccines not great
  • birds can be carriers

3

PEDv

  • Porcine Epidemic Diarrhea Virus
  • coronavirus
  • morbidity up to 100%
  • villus blunting
  • same as TGE
  • 3 wk old pigs will not survive
  • profuse water diarrhea and vx
  • biosecurity, vaccination, bird/animal control

4

Coccidiosis

  • Sow not source
  • oocysts in piglet environment
  • must be at least 4.5-5 days old (piglets)
  • merozoites, micro and macro gametes in SI
  • hygiene and heat treatment
  • coccidiostats only

5

Clostridial Enteritis

  • < 7 days old
  • necrotic, hemorrhagic enteritis
  • perfringens type C
  • in soil
  • CS: death, or bloody diarrhea, or death
  • post mortem, impression smear, culture
  • TX: penicillin (PPG)
  • vaccination
  • antitoxin, abx to sows, hygeine

6

Rotavirus

  • takes off tip of villus
  • killed by ethanol and everything
  • very common
  • 7-14 days old piglets
  • some vomiting
  • TX: fluids, Abx, TLC
  • vaccination not great, sow management

7

breakdown preweaned pigs

day 3-4 or  younger

day 6-7

day 7+

  • day 3-4 or younger: likely E. Coli
  • day 6-7: coccidia
  • day 7+: Chlostridia, possibly rotavirus

8

Colibacillosis

post weaning

  • E. Coli (different from other E. Coli)
  • postweaning diarrhea
    • loss of lactogenic immunity
  • edema
  • 20-50% morbidity, up to 10 % mortality
  • fever, maybe
  • no villous damage
  • dx: clinical signs, culture (look for specific E. Coli)
  • TX: anything that treats G-s (feed medication)
  • control: creep feeding
  • vaccination for little guys not great

9

Edema Disease

  • related to E. Coli
  • edema
    • gut, eyelids, face, nervous signs
  • death of good doers
  • oral exposure
  • DX: CS, culture spec E. Coli and edema inducing toxin
  • DDX:
    • PRV (pseudorabies)
    • Mulberry heart
    • arsenic
  • ABX, acidifying feed
  • vacc not great, get rid of genetic carriers

10

Salmonellosis

  • not typcally same salmonella that people get
  • primary dz of grow/finish pigs
  • septicemic form
    • fever, restless, anorexia, cynosis
  • enteric form
    • fever, dehydration, dec body cond, fast spreading diarrhea
  • necropsy: skin discoloration, larger LN, focal nec, inc L.N. size
  • isolate, dec stress, inc hygeine
  • pulse feed antibiotics, or vaccines

11

Serpulina (brachyspira) hyodysenteriae

  • bloody, mucoid diarrhea
  • up to 40% of farms
  • anaerobic spirochete
  • morbidity: 100%, mortality 30%
  • can shed for up to 70 days
  • organism can survive in lagoon, H2O, dogs, mice, starling, flies
  • not a ton of chronic dz
  • lesions limited to mucosa
  • DX: CS, postmortem, culture
  • DDX: salmonellosis, NPE (ileitus), TGE
  • TX: anything
  • De pop/ re pop

12

Serpulina (brachyspira) pilosicoli

2nd verse same as the first

13

PIA

Procine Intestinal Adenomatosis Complex

  • ileitis
  • inc prev in hi health herds
  • easy to treat
  • lawsonia intracellularis
  • fecal oral transmission
  • mid-grower, early finisher
  • PIA: mild signs => wt. loss, dec appetite, diarrhea
  • NE/RI: more severe diarrhea and wt. loss
  • PHE: acute hemorrhagic anemia, melena, death
  • spontaneous recovery in 4-6 weeks
  • Necropsy: icky ileum (thickened)
  • DX: HX and clinical signs, clean herd
  • DDX: salmonella, swind dysentery (SD)
  • Oral vaccine when off antibiotics

14

Gastric Ulcers

  • ulceratio of pars esophagae
  • 2-100% animals at slaughter
  • 24 hours off feed (chicken or egg?)
  • Etiology: stress, finely ground feed, gastric acidity
  • Clinical signs: Peracute-dead; chronic-melena, weight loss, anemia, abdominal pain
    • bleached out pigs...
  • DX: HX and CS, melena, anemia
  • DDX: PHE

15

Grower sized pigs with bloody diarrhea could be

NAVLE

  1. Salmonella
  2. PHE (Ileitis)
  3. SD

16

6 day old pigs that are scouring

NAVLE

  • E. Coli
  • Coccidia
  • probs not rotavirus

17

everyone on sow farm broken with diarrhea (sows and piglets)

NAVLE

  • TGE-coronavirus
  • PEGD-coronavirus

18

PRDC

  • pneumonia in nursery thru finisher
  • multifactorial
  • 2-10% mortality
  • 20-80% morbidity
  • poor growth, 18 week wall
  • HX: morb/mort, age/time onset, duration of sickness
  • PE: take temp, coughing, thumping (abdominal comp), Nasal d/c, facilities/stocking rates, ventilation
  • necropsy everything: euthanize and post several untreated animals

19

Mycoplasma Pneumonia

  • enzootic pneumonia: mycoplasma hyopneumoniae
  • low mortality
  • common in up to 90% of herds
  • survives on hair in clothing
  • chronic dz, never really goes away
  • 3-10 weeks of age
  • chronic, non-productive cough
  • infection of cilia of upper resp tract
  • in in size of mediastinal L.N.s
  • DX: CS, culture back of nose, serology for herd exposure, histopath
  • DDX: SIV, Pasteurellosis, APP, Ascarids, other (PRRS, PRV, etc)
  • TX: unrewarding
  • Mycotil good for cow and pig tx, can kill peeps
  • all in all out, early weaning, pathogen free, old sows have best colostrum but may expose their piglets

20

Swine flu, SIV

  • Flu A
  • 25% slaughter animals, 45% breeding animals
  • H1N1, H3N2, H2N1
  • aerosol
  • outbreaks in fall, spring
  • explosive outbreak of coughing
  • nec: purple-red penumonic lesions; mucus and exudate in airways
  • DDX: pasteurella, PRV, APP, Mycoplasma
  • TX: aspirin, expectorants
  • Vaccines, ventilation, pig movement, bird control

21

Pasteurella multocida

  • everywhere there are pigs
  • usually secondary prob, doesn't usually cause probs on own
  • Type A more common than type D
  • aerosolized, oral spread
  • severe dyspnea, open mouthed breathing (very bad)
  • mycoplasma lesions, bronchopneumonia, consolidation
  • DX: CS, culture
  • DDX: mycoplasma, PRV, APP, Ascarid
  • TX: abx
  • control other respiratory problems

22

Porcine Reproductive and Respiratory Syndrome (PRRS)

  • arterivirus
  • aerosolized, pig to pig, secretions, semen
  • CS: resp, repro, one, both
  • resp in nursery pigs after weaning
  • path: viremia => clinical signs => immunosuppression
  • Piglets-unrewarding necropsy
  • pneumonic - interstitial pneumonia on histopath
  • DX: CS, HX, virus iso (VI)
  • blue ear dz
  • DDX: other resp dz, other abortion dz
  • matched health programs: get replacement gilts infected with PRRS during their iso time
  • vaccine: many antigenic straines, vaccine with correct strain
  • never buy PRRS infected semen

23

APP

  • actinobaccillus Pleuropneumoniae
  • high mortality
  • many serotypes (13)
  • needs a nurse colony for staph if you want to grow
  • fragile, requires nose-to-nose contact (aerosolization)
  • carrier pigs, unlikely to come in on a person
  • all ages affected: may stay contained to grower pigs
  • acute: inc temp, anorexia, dyspnea, death in 6 hours
  • subacute: less death
  • chronic: all ages, some abortions from sick sows
  • infarcts in lungs
  • Pigs dyspnic, sick, struggle to breath
  • DX: CS, infarcts
  • TX: anything against G+s
  • Vaccinate