LECTURE 17: Digestive Diseases Flashcards
What are clinical signs of digestive diseases?
- Diarrhea and abnormal stool
- Dehydration/dry, dark membranes
- Droopy wings, ruffled
- Loud vocalization
What are some sub clinical signs of digestive diseases?
- Poor absorption
- Weight gain
- Feed efficiency due to chronic GI damage
What are gross lesions of digestive disease?
- Enteritis
- Swollen enlarged intestines
- Thinning/thickening of intestinal walls
- Caseous/fibrinous membranes
- Dry, dark tacky memrbanes
What are testing methods for digestive diseases?
- Histopathology
- Bacterial Swabs
- Gut Scrapings
- Fecal Examinations
What is coccidiosis?
Species specific parasite
How many pathogenic types of cocci are there?
7
What are the 3 types of cocci that cause the most disease issues? What is the immunity like for these?
- Eimeria tenella
- Eimeria maxima
- Eimeria acervulina
*Specific immunity for each and not one immunity for all
What is the life cycle of cocci?
- Bird ingests cocci
- Goes through the bird and out through feces
- Next bird eats feces
What are the 3 parts of the digestive system where cocci occurs and what type in each?
- Duodenum - acervulina
- Small Intestine - maxima
- Ceca - tenella
(alphabet)
E. acervulina can be described as…
Moderately pathogenic
acervulina occurs in what age of birds
Older
What does acervulina look like on the intestine
White to gray striations
E. maxima can be described as…..
moderately pathogenic
What does maxima look like?
Huge oocysts, huge intestines, usually really bloody
tenella can be described as……
Severely pathogenic
What does tenella look like in the GI tract?
Inflammation of the ceca (typhiltis) and caseous cecal cores