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Studied by 11 peopleNoteStudied by 14 peopleNoteStudied by 6 peopleNoteStudied by 10 peopleNoteStudied by 26 peopleNoteStudied by 37 peopleCardiorespiratory disease pigs
Cardiorespiratory disease:
Approach to respiratory disease
History | § What type of pigs? Finishers? Breeders? Piglets? § Scale of farm? § How many pigs affected? § What aged pigs affected? – piglets with GI signs, ill thrift = PRRS, aged 4-8w, thin = GPS § What clinical signs have they noticed? o Increased respiratory effort? o Cough? GPS o Nasal discharge? § Any other clinical signs? E.g. scour, weight loss – rapid weight loss = GPS, neuro signs = GPS § Any deaths? – GPS § Any abortions? - PRRS § Any recent changes in diet or management? § Vaccination protocol? |
Investigations | Assess farm: § Sufficient space, access to feed, bedding? § Clean and fresh water supply? Clinical examination of affected animals: § TPR – incr. HR and RR in pale piglets = iron deficiency, pyrexic = GPS § CRT/MM to assess hydration § BCS – no rib fat covering = GPS Take samples: § Swab and fresh lung/heart tissue for culture – GPS § Preserved lung and heart tissue for histopathology – GPS, SIV, PRRS, PCV-2 § Fresh lung tissue for PCR – SIV, PRRS, mycoplasma hyorhinis § Fresh spleen tissue for PCR – PRRS |
Treatment | § Antibiotics – amoxicillin, penicillin § NSAIDs (meloxicam), or dexamethasone – anti-inflammatory and anti-pyretic |
Porcine respiratory disease complex (PRDC)
Pathogens | Combination of pathogens: § Viral: PRRS, SIV, PCV-2 § Bacterial – Glaesserella parasius (GPS), Mycoplasma hyopnuemoniae, Mycoplasma hyorhinis, Streptococcus suis, Pasteurella multicoda, Actionobacillus pleuropnumonia |
Clinical signs | § Coughing § Anorexia, weight loss § Lethargy § Increased hair growth § Increased respiratory effort § Increased mortality |
Diagnostics | Herd sampling: § ELISA of blood or oral fluids § PCR of blood, oral fluids or nasal/tonsillar swabs PM sampling: § Look at lung tissue – consolidation? Fading? Pneumonia? § PCR of tissue, flood, BAL, swab § Culture of tissue or swab § Histopathology |
PRRS | § Porcine reproductive and respiratory syndrome Control: § Only buy in PRRS negative animals § If animals test PRRS positive – isolate and vaccinate, don’t serve gilts till >6w post-infection § Monitor positive herd with PCR – oral fluid, blood, spleen, lung |
Heart disease
Causes | § Endocarditis – erysipelas § Pericarditis – GPS § Myocarditis – FMD, SVD |
NoteStudied by 11 peopleNoteStudied by 14 peopleNoteStudied by 6 peopleNoteStudied by 10 peopleNoteStudied by 26 peopleNoteStudied by 37 people