PRACTICAL - Examination and Diagnostic tests of the udder

Question 1

What should you clean the teat end with?

Answer 1

wool soaked in surgical spirit or suitable sterile wipes or swabs

Question 2

How should you hold the lid of the container you want to take a milk sample into?

Answer 2

between the fingers of the same hand that holds the container to prevent contamination

Question 3

How much milk should you collect in a sample?

Answer 3

2-3ml

Question 4

What should you label a milk sample container with? 4

Answer 4

date, name of farm, cow number, quarter

Question 5

Should you use a teat dip after taking a milk sample?

Answer 5

Yes

Question 6

How much milk should go into each well of a CMT? Reagent/CMT liquid?

Answer 6

approx 3ml (just enough to cover the base of the well). Add the same amount of CMT liquid/reagent/fairy liquid with indicator to the milk as the milk sample.

Question 7

What results do you look for in a CMT?

Answer 7

Observe each well whilst swirling for any indication of thickening of fluid or gel formation.

Question 8

How are the CMT wells scored? 5

Answer 8

Negative = remains free running, no evidence of thickening or formation of a precipitate despite continued rotation of the paddle, approx 5,000,000 cells/ml