LECTURE 19: Digestive Diseases III Flashcards
What is avian tuberculosis?
Gram positive bacteria
ATB is chronic disease for what age of birds?
Older
ATB is common with what type of flocks?
Backyard flock
What is the transmission of ATB?
fecal oral, mechanical vectors
What are clinical signs of ATB?
Progressive wasting of birds?
What are gross lesions of ATB?
Grayish yellow or grayish white nodules
How would you sample for ATB?
- Histopathology
- Swabs for molecular
- Bacterial culture
Ascaridia galli is what?
Roundworms
Rounds worms are common with what type of poultry?
Gallinaceous birds but also most types of birds
Round worms can be described as very…..
Virulent
What is the transmission of round worms?
Ingestion of eggs from contaminated environment
Eggs may be ingested by insects and remain infectious
What are clinical signs of round worms?
May be absent, loss in wt, stunted growth, intestinal blockage
Round worms can cause a secondary ______.
e coli infection
What are thread worms/crop worms?
Small hair like worms
thread worms effect what birds?
Quail and pheasants and pigeons
What are clinical signs of thread worms?
Swallowing motion
Cecal worms occur in what birds?
All birds
Cecal worms is a vector for what?
Black head disease
What are tape worms?
Non pathogenic worms that don’t have a treatment
When you have tape worms what should you re evaluate?
Pest control
For worms how do you sample?
- Histopathology
- Gut scrapings
- Fecal examination
What are gross lesions of parasites?
Presence of worms in intestines, cull birds
What is the diagnosis for parasites and worms?
Direct obs of fecal and gut scrapes
What is histomoniasis? (black head)
Protozoal parasite
Black head occurs in what type of birds?
Turkeys, game birds, chickens, peafowl
What happens when turkeys get blackhead?
They die
How is blackhead transmitted?
cloacal drinking, intermediate hosts, and vectors
What are clinical signs of black head?
Sulfur colored, diarrhea, anorexia
Emaciation and debilitation
Death
What is your main way for testing for blackhead?
Histopathology
What is the your biggest clue for black head disease?
TARGET LESION
What are gross lesions of blackhead?
cecal cores, targets, peritonitis
Trichomoniasis is what….
protozoa parasite
What does trich do?
creates lesions in the upper respiratory tract
With trich when do you see high mortality?
Young fowl
What is crop mycosis?
AKA thrush and sour crop
Crop mycosis is an ______.
Opportunistic infection
What lesions do we see with crop mysosis?
cheesy lesions
What should you test with crop mycosis?
- Histopathology
- Bacterial swabs
- Gut scrapings
How do you prevent crop mycosis?
avoid prolonged antibiotic treatment