Mastitis

Question 1

What is mastitis?

Answer 1

inflammation of the mammary gland

Question 2

Define the words: case, new, reoccuring

Answer 2

Case: one quarter infected
New: if 7 days passed since last infection
Reoccuring: if less than 7 days since last infection

Question 3

What are the phases of mastitis?

Answer 3

Invasion: organisms move in from the environment into ducts and into gland cistern
Infection: organisms multiply, tissue invasion
Inflammation: leucocytes and proteins into glands. clinical signs start

Question 4

What are the other words for e.coli mastitis?

Answer 4

toxic/coliform

Question 5

Write a description on subclinical mastitis

Answer 5

No detectable changes in the udder or milk usually seen but microorganisms usually present in the cultures

Question 6

What are the different diagnostic tests for mastitis?

Answer 6

california mastitis tests: 4-3-2-1, positive strings of gel
SCC
Bacterial culture/PCR

Question 7

What is the cell number in an SCC that indicates infection?

Answer 7

> 200,000 cells/ml

Question 8

What is the 6 point prevention and management plan for mastitis?

Answer 8

1. Hygienic teat management
2. Identification and treatment
3. Dry cow therapy
4. Culling of chronic cows
5. Monitoring of SCC and record keeping
6. Regular milking machine maintenance