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Anhe 0321: Parasitic Diseases Question Paper

Anhe 0321: Parasitic Diseases

Course:Diploma In Animal Health And Production

Institution: Chuka University question papers

Exam Year:2013

CHUKA

UNIVERSITY

UNIVERSITY EXAMINATIONS
THIRD YEAR EXAMINATIONS FOR THE AWARD OF DIPLOMA IN ANIMAL HEALTH AND PRODUCTION
ANHE 0321: PARASITIC DISEASES
STREAMS: DIP (ANHE) Y3S1 TIME: 2 HOURS
DAY/DATE: TUESDAY23/4/2013 8.30 AM – 10.30 AM
INSTRUCTIONS:

Answer all questions in section A and any two in section B.

SECTION A: (40 MARKS) answer all questions.

1. (a) List the mechanisms by which parasitic diseases alter animal productivity.
[4 Marks]

(b) Name three ways that have been suggested to explain how protozoa produce
disease. [3 Marks]

(c) Define “coccidiosis”. [3 Marks]

2. (a) List five purposes for collecting laboratory samples from animals or the
environment. [5 Marks]

(b) What information should be provided to the laboratory personnel when samples
are submitted? [5 Marks]

3. (a) Name five major pathogenic species of trypanosomes of animals in Africa.
[5 Marks]

(b) Define: Entomology; acarology; acariasis; mange; myiasis. [5 Marks]

4. (a) What is the Binomial system of nomenclature? [4 Marks]

(b) In biological classification, what is a species? [4 Marks]

(c) Define an “animal parasite” [2 Marks]

SECTION B(30 MARKS) answer any two questions.

5. (a) Draw a flow-chart to illustrate the lifecycle of Haemonchus contortus.
[5 Marks]

(b) Complete the blank space in the following table. [10 Marks]

Name of larval stage Host to larval stage Name of adult stage Host to adult stage/definitive host
Cysticercus bovis
Cysticercus cellulosae Pig muscles
Cysticercus ovis Sheet muscles
Hydatid cyst

6. (a) List the clinical signs of Psarcoptic mange (barn-itch) in cattle. [4 Marks]

(b) How is psoroptes mange in sheep controlled? [4 Marks]

(c) In terms of transmission and pathogenesis, what is the difference between
“blow-fly myiasis” and “screw –worm myiasis”? [4 Marks]

(d) List the clinical signs associated with “flea bite dermatitis” in dogs. [3 Marks]

7. Give an outline of the methods used to control ticks and tick-borne diseases.
[15 Marks]

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Anhe 0321: Parasitic Diseases Question Paper

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