Term
How long do pigs remain in the finishing barn?
At what age & weight do they reach market weight? |
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Definition
100-120 days
6 months old & 110kg market weight |
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Term
| What should the mortality of finisher pigs be? |
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Definition
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Term
| What is the most common & costly disease of finisher pigs? What is the 2nd most common problem? |
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Definition
Respiratory disease
Gastro-intestinal disease |
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Term
| What agent causes enzootic pneumonia? Describe the morbidity & mortality |
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Definition
mycoplasma hyopneumoniae
high morbidity, low mortality |
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Term
| What are the clinical signs of enzootic pneumonia? |
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Definition
-dry cough
-slow spread
-reduced growth rate
-rarely fatal
-increased susceptibility to other disease |
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Term
| How is enzootic pneumonia transmitted? |
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Definition
Horizontally
-sow to piglet in farrowing crates
-pig to pig in grower/finisher
-an travel through the air up to 5km |
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Term
| What age of pigs typically expresses enzootic pneumonia |
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Definition
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Term
| Describe the pathogenesis of enzootic pneumonia |
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Definition
-MH colonizes trachea & bronchial epithelial cells
-cilia clump, clearance is impaired
-debris & mucus fall deeper into lung
-secondary bacterial & viral infections |
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Term
| Describe the treatment of enzootic pneumonia |
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Definition
Vaccination
-reduces prevalence & severity
-doesn't prevent colonization or infection
-vaccinate 2-3 wks before exposure
Antibiotic Medication
-prior to/during peak exposure
-do not elminate mycoplasma infection, just help to control 2ndary infections |
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Term
| What can you do to prevent enzootic pneumonia |
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Definition
-buy mycoplasma free pigs
-good air quality
-all in all out
-vaccinate in nursery
-antibiotics |
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Term
| What are the environmental, host & agent factors contributing to enzootic pneumonia |
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Definition
HOST
-immunity (vaccine status)
-other underlying diseases
AGENT
-mycoplasma hyopnneumoniae
ENVIRONMENT
-carrier pigs
-mixing of pigs
-over crowding of pigs
-near other pig barns |
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Term
True or false
Mycoplasma hyopneumoniae are very hardy in most environments |
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Definition
False
They do not survive in the environment for long |
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Term
| Describe the clinical signs of ileitis |
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Definition
-poor growth
-variation in pig size
-sporadic diarrhea
-sudden occasional death with severe bloody diarrhea |
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Term
| Describe the pathogenesis of ileitis |
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Definition
-bacteria invades intestinal cells
-prevents them from maturing, causing them to rapidly divide
-results in thickening of SI wall |
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Term
| How can you prevent/control ileitis? (5) |
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Definition
-difficult to kill or eliminate as pigs can be infected very young
-reduce stress (mixing, transport)
-vaccinate via water
-mass medicate during stressful times
-strategic vaccination |
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Term
| What are the environmental, host & agent factors contributing to ileitis |
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Definition
HOST
-immunity (vaccination status)
-stress
AGENT
-Lawsonia intracellularis
-can survive outside host, stimulates grown & inflam of infected cells
ENVIRONMENT
-carrier pigs
-mixing pigs
-temperature fluctuations |
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Term
| What agent causes ileitis |
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Definition
-Lawsonia intracellularis
-can survive outside host, stimulates grown & inflam of infected cells |
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Term
| Describe the pathogenesis of gastric ulcers (4) |
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Definition
-increased fluidity of stomach contents
-erosion of lining near esophagus entrance to stomach
-causes bleeding into stomach
-death due to acute blood loss or perforation of stomach |
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Term
| What environmental factors contribute to gastric ulcers? |
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Definition
Feed
-particle size (fine cause ulcers)
-pelleted feed
-disruption in feed delivery |
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Term
| What host factors contribute to gastric ulcers? |
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Definition
-other underlying diseases (esp respiratory)
-anything that makes a pig go off-feed
-periparturient sows at high risk (loss of apetite)
-also common in finisher pigs (high grain diet) |
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Term
| What agent factors contribute to gastric ulcers? |
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Definition
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Term
| What are the clinical signs of gastric ulcers? |
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Definition
-possible slow growth
-pale (blood loss)
-anorexia
-black tarry feces (blood)
-abdominal pain
-teeth grinding
-vomit & then eat again
-pneumonia
-death |
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Term
| What can you do to prevent gastric ulcers? |
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Definition
-adjust feed particle size (700 microns)
-avoid restricting access to feed
-treat/prevent diseases
-good management to reduce stress |
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Term
| What is an appropriate size of feed particle to reduce chances of gastric ulcers |
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Definition
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