Swine Diarrhea Part II Flashcards
who does Salmonella choleraesuis affect?
3-12 weeks
what percentage of pigs with Salmonella choleraesuis have diarrhea?
5%
how does Salmonella spp enter the body?
crosses from tonsil into the blood stream
what are the forms of Salmonella cholerasuis?
septicemic form: coughing
enterocolitic form: squirting
how can you treat for Salmonella spp?
ceftiofur injected
gentamycin or neomycin in water
segregate affected pigs
avoid environmental stressors
how common is Lawsonia intracellularis?
present on 96% of farms
how can you treat swine dysentery?
injectable tylosin
tylosin, tiamulin, lincomycin in feed
what causes a whipworm infection?
Trichuris suis
who gets gastric ulcers usually?
12-20 week old pigs
is there vomiting with E. coli?
no
what are the signs of E. coli?
wet tails, rud butts
some dehydration
most bright alert and eating well
some neurological signs
what type of diarrhea does E. coli cause?
toxin mediated: shiga toxin causes edema disease
how can you treat E. coli with diet changes?
ZnO in diet
reduce soluble carbohydrates
increase fiber
add egg or plasma protein to diet
what are the signs of Salmonella choleraesuis?
diarrhea
red tipped ears, depression
cough
unaffected are eating well
no vomiting
how can you diagnose Salmonella choleraesuis?
grow from liver, spleen, mesenteric lymph node
what is the septicemic form of Salmonella cholerasuis like?
coughing
enlarged spleen and liver
pneumonia and cyanosis
enlarged lymph nodes throughout body
what form does Salmonella typhimurium primarily cause?
enterocolitic form: small and large intestines, no blood in diarrhea
is there a vaccine for Salmonella spp?
yes: modified live, do via water
what are the signs with Lawsonia?
dark diarrhea
no increase mortality
slow growth rates
how can you diagnose Lawsonia?
PCR feces
IPMA or ELISA on sera
histology with silver stain
what is Lawsonia intracellularis?
intracellular bacteria
what does Lawsonia intracellularis cause in the intestines?
proliferation of immature enterocytes: thickened areas in cecum, colon, ileum, small intestines
what does porcine proliferative enteritis look like?
non-hemorrhagic diarrhea
dramatic weight variation
poor weight gain and feed conversion
who does proliferative hemorrhagic enteropathy impact?
young adults 4-12 months
what are signs of swine dysentery?
bloody, mucus diarrhea
losing weight
some mortality due to diarrhea
what causes swine dysentery?
Brachyspira hyodysenteriae
what do whipworms cause?
mucoid diarrhea with blood
weight loss
poor doers die
no response to antibiotics
what do the larvae of Trichuris suis do?
burrow into cecum and colon
how can you treat for whipworms?
fenbendazole in feed
deworm during finishing stage
what are signs of gastric ulcers?
black tarry feces
lose weight
pale
die suddenly
how can you control gastric ulcers?
increase grind size to over 800 microns
make sure pigs have feed available 24 hours a day
