collecting sterile milk samples and lab diag of udder inflamm

collecting sterile milk samples for lab diag test

• material: quarter milk/inflammatory secretion

• Samples should be taken in the normal milking time, before start, in volume of about 10 ml into sterile and pre- labeled tubes.

• In a case of cows with signs of mastitis, the

  samples must be collected as soon as possible

  (before drugs administration).

how to collect

n

innoculation of sample onto medium

n

changes in comp of milk induced by mastitis

n

practical diagnostic values

n

NAGase (N-acetyl-ß-D-glucosaminidase):

n

somatic cells in milk

n

Standards in force in Poland:

• for somatic cells: 400,000 cells/ml

• for bacteria: 100,000 cells/ml

detection of somatic cells

n

california mastits tests

n

how to preform california mastits test

n

Correlation between the California

mastitis test result and the somatic cell

n

DeLaval cell counter DCC

n

Fossomatic

n

Electrical Conductivity:

n