MODULE 3: LABORATORY DIAGNOSIS OF PIGLET SCOURING

Question 1

Give the members of the normal intestinal flora of humans and animals.

Answer 1

Gram-negative bacilli:
- Escherichia
- Klebsiella
- Enterobacter
- Serratia
- Citrobacter
- Proteus

Question 2

Except for _____, these gram negative bacillus are referred to as the ____ ____ because of their shared properties, particularly the ability of most species to ferment _____.

Answer 2

Proteus; coliform bacilli; lactose

Question 3

______ is versatile and well adapted to its characteristic habitat. It is one of the earliest causative agents of enteritis in pig farms.

Answer 3

E. coli

Question 4

E. coli can grow in aerobic and anaerobic conditions. True or False?

Answer 4

True

Question 5

Has no growth factor requirements and can transform glucose into all of the macromolecular component = fermentation. (hint: form of E. coli)

Answer 5

Wild type E. coli

Question 6

Gilt litters _____days of age are more often affected/diagnosed with E Coli scours and Clostridial Infection than Sow litters.

Answer 6

0-4 days

Question 7

Differentiate anaerobic fermentation from anaerobic respiration.

Answer 7

Anaerobic fermentation:
Produces mixed acid and gas as end products

Anaerobic respiration:
Utilizes NO3 (Nitrate), NO2 (Nitrite), Fumarate, as final electron acceptors for Respiratory Electron Transport

Question 8

What are the type of toxins that adhere to the small intestinal mucosa, preventing nutrient absorption and increasing fluid movement into the gut?

Answer 8

Enterotoxins