Fecal examination

Question 1

qualitative or quantitive?

does my animal have parasites?

Answer 1

qualitative

Question 2

qualitative or quantitative

how severe is the infestation?

Answer 2

quantitative

Question 3

fecal parasites

Answer 3

helminths (worms)
protozoa

Question 4

collection of feces

Answer 4

• directly from the rectum
• fresh collection off the ground

Question 5

how do you handle fecal samples?

Answer 5

• fresh feces is best
• refrigeration if the sample is being held for more than a few hours after collection
• not refrigerated may result in the ova to hatch
• if frozen, ova may explode

Question 6

direct examination of fecal smear

Answer 6

• best for motile parasites
• crude exam
• false negatives

Question 7

concentration examinations

Answer 7

• best for detecting low levels of eggs
• flotation
• sedementation

Question 8

fecal flotation exam

Answer 8

the ability of the solution to allow less dense material (parasite elements) to rise to the top
- timing
- types of solution:
sugar
sodium nitrate
sodium chloride
zinc sulfate
- techniques
gravitational
centrifugation

Question 9

gravitational flotation methods

Answer 9

• Mcmaster method
• FLOTAC
• ovassay plus
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