Streptococcus suis meningitis in weaners-
check list
Farm: Date:
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Check |
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Undisturbed
group of pigs |
Examine
and record lying pattern of undisturbed pigs – picture/video |
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Behaviour
of pigs around the water supply - picture/video |
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Behaviour
of pigs around the feeders - picture/video |
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Stock |
Clinical
pigs respond to ceftiofur or penicillin |
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Check for PRRSv |
Blood
results – note 21 days antibody delay |
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PMWS/PCVAD |
Ensure
that the pigs were vaccinated at weaning – PCV2 |
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Check
vaccine purchases correspond to weaning numbers |
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Check
medicine storage – 2-8°C |
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Post-mortem |
Ensure
diagnosis correct - picture/video |
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Sick pigs |
Treatment
of sick pigs |
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Movement
of recovered pigs |
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Collect
true mortality and morbidity figures |
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Check weaning age and weight |
Age
at weaning |
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Weight
at weaning |
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Immunology |
Feedback
programme |
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Pig
flow |
Collect
true weaning/farrowing/breeding and gilt numbers by batch |
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All-in/all-out |
AIAO
by pigs, water, feed, floor, air and medicine. |
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Medicines |
Ensure
needles and syringes not used between different groups. |
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Water |
Flow
– 700 mls |
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Height
– 13-30cm |
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Number
of drinkers |
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Cleaning
programme between batches |
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Floor |
Nursery
pigs need 0.3 m2 per pig
(to 30 kg) |
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Cleaning
programme between batches |
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Air |
Temperature
cooling curve 30°C entry |
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Cooling
1°C per week to 24°C |
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Relative
humidity (50-75% RH) |
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Gas
heating – check colour of flame and CO concentration |
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Many
farms with a meningitis problem staff have “headaches” |
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High
dust and endotoxin issues |
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Note
level of slurry under slats – air flow from underneath slats? |
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Draughts
in the “proposed sleeping area” |
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Examine
defecation pattern of pigs |
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Smoke
buildings and record air movement patterns - picture/video |
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Cleaning
programme between batches |
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Feed |
Feed
space (50 mm per pig 30 kg) and feeder management |
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What is the Vit E
concentration in the feed? Ideally
250mg/kg |
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Gruel
feeding regime 3-4 days post-weaning |
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Problem
coincides with a change in diet/feed type and feed size |
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Cleaning
programme between batches |
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Other
problems |
PRRSv,
PCVAD/PMWS and Mange are classical examples of problems. |
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Eliminate
any additional stressors at weaning – weighing, tagging, bleeding |
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