4.03 Animal Science Quiz

The best way to improve hybrid vigor in swine production is to cross:

• purebred boars to crossbred sows.
• brothers and sisters in the same litter
• pigs from the litter with their parents.
• purebred boars to purebred sows

Broilers are a type of chicken that are most often used for:

• Fighting
• Egg laying
• Meat Production
• Show

The main function of protein in livestock feeds is to:

• regulate body temperature
• Build Muscle
• develop bones and teeth
• provide energy.

American breeds developed by crossing the Braham from India with English breeds are bred to:

• increase heat tolerance.
• increase milk production
• improve meat quality.
• reduce the size of calves.

Which aquaculture system most likely requires Lorie to closely monitor wastewater through a biological filter before returning it to the growing area?

• Net Pens
• Open Ponds
• Cage culture
• Recirculating Tanks

Hope carefully monitors the fish in her caged-culture system because fish:

• are subject to electrocution during storms.
• cannot escape stressful water conditions by moving to other parts of the pond.
• may become entangled in filters designed to purify the water.
• must be encouraged to get enough exercise to stir up the oxygen levels in the pens.

Weather is a factor in fish farming. Why might a fish kill occur when a pond "rolls over" due to weather?

• Temperature shock
• Fish turning upside down
• Sinking cages
• Low levels of dissolved oxygen

How many compartments are found in the ruminant digestive system of a cow?

• 3
• 1
• 4
• 2

Vitamins are important because they:

• are a part of all proteins.
• keep animals from gaining too much weight.
• serve as a source of energy for livestock.
• help prevent many livestock diseases.

The Angus is best known for its:

• hump and heat tolerance
• large calves and fast growth rate
• large size and leaner meat
• black color and high quality meat.