Aqua Gut Health: Test Your Knowledge

Aqua Gut Health

1 / 13

Why is gut health especially critical in aquaculture species?

Fish and shrimp have no immune system

The gut is a key barrier and immune organ in direct contact with the water environment

Fish do not digest feed

2 / 13

Which feature distinguishes the shrimp digestive tract from fish?

Shrimp have a hepatopancreas serving digestive and absorptive functions

Shrimp have four stomach chambers

Shrimp lack any digestive enzymes

3 / 13

Which bacterial genus is a major cause of disease in shrimp?

Lactobacillus

Vibrio

Bifidobacterium

4 / 13

AHPND, a serious shrimp disease, is caused by certain strains of:

Vibrio parahaemolyticus

Escherichia coli

Salmonella enterica

5 / 13

What does a healthy gut microbiota provide the host?

Competitive exclusion of pathogens and support for digestion

Increased water turbidity

Faster molting only

6 / 13

Which feed additive class is used to selectively feed beneficial gut bacteria?

Prebiotics

Antibiotics

Pigments

7 / 13

What are probiotics in aquaculture?

Inert binders added to pellets

Live beneficial microorganisms that confer a health benefit

Synthetic growth hormones

8 / 13

Why is water quality directly tied to gut health?

Poor water increases stress and pathogen load, compromising the gut barrier

Water has no effect on the gut

Clean water removes the need for feed

9 / 13

Which gut structure is the main site of nutrient absorption in fish?

The intestinal mucosa and its folds

The swim bladder

The gills

10 / 13

Organic acids are used in aqua feed mainly to:

Lower pH and inhibit pathogenic bacteria in the gut

Add color to the feed

Increase pellet floating time

11 / 13

Phytomolecules (plant-derived compounds) support gut health by:

Antimicrobial and anti-inflammatory action plus digestive stimulation

Acting only as a binder

Raising water temperature

12 / 13

What is a recognized sign of poor gut health in shrimp?

An empty or discolored gut line and white feces

Faster swimming

Brighter shell color

13 / 13

Why is reducing antibiotic use a priority in aquaculture gut management?

Antibiotics improve flavor

To limit antimicrobial resistance and meet export/market requirements

Antibiotics are banned in all feed globally

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Aqua Gut Health