Mammary Diseases

Question 1

What is the composition of milk?

Answer 1

• Water 87.7%
• Lactose 4.9%
• Fat 3-4%
• Protein 3.5%
• Minerals 0.7%

Question 2

What does the composition of milk depend on?

Answer 2

• Genetics
• Lactation stage
• Nutrition
• Farming system
• Environment
• Parity

Question 3

What is the definition of milk?

Answer 3

A fluid secreted by the mammary glands of femails for the nourishment of their young

Question 4

What is essential for milk production?

Answer 4

• Pregnancy
• Appropriate management: Nutrition, comfort, health

Question 5

What is mastitis?

Definition

Answer 5

Inflammation of the mammary gland

Most infections are due to bacterial pathogens

Question 6

What is the “first line of defense” of the mammary gland?

I think this is important!

Answer 6

Teat canal

Question 7

What is the “second line of defense” of the mammary gland?

I think this is important!

Answer 7

Somatic cells

Question 8

What are the classifications of mastitis?

There are two

Answer 8

• Clinical (Mild, Moderate, Severe)
• Subclinical

Question 9

What is the difference between clinical classifications of mastitis?

Mild, moderate, and severe

Answer 9

• Mild: abnormal milk
• Moderate: abnormal milk and mammary gland
• Severe: abnormal milk, mammary gland, and systemic signs

Subclinical mastitis only has elevated SCC

Question 10

What is the most common and costly disease in the dairy industry?

I think this is important

Answer 10

Mastitis