Feed Additives & Hormone Implants

Feed additives are used in large amounts to improve feed efficiency, promote faster gains, and improve health.

• True

• False

Subtherapeutic drugs are used at low levels in feed to treat sick animals.

• True

• False

Which of the following are produced by living microorganisms?

• Chemoantibacteriah

• Antibiotic

• Ionophore

• Anthelmintic

Which of the following is not a common antibiotic?

• Penicillin

• Streptomycin

• Terramyscin

• Rumensin

What term is used when describing a substance that allows animals to use available nutrients more efficiently?

• Narrow spectrum antibiotic

• Nutrient sparing

• Subtherapeutic

• Antimicrobial

Which of the following is controlled by hormones?

• Growth

• Metabolism

• Reproductive cycle

• All the above

The use of feed additives, hormones, and antibiotics is controversial.

• True

• False

What do anthelmintics control?

• Bots and flies

• Worms

• Lice

• Ticks

What is the anticipated improvement in rate of gain in cattle on a high energy ration when fed low levels of antibiotics?

• 1-3%

• 3-5%

• 5-7%

• 7-9%

Where are implants placed in beef cattle?

• Neck

• Round/Hip

• Ear

• Brisket