title: An improved technique for counting leucocytes in milk by the direct microscopic method.
abstract: An improved microscopic method for counting leucocytes in milk has been developed, which results in acceptable levels of reproducibility. To overcome the lack of uniform cell distribution within a film a stratified sampling of the total film area is examined, which prevents the counting of any one area twice. The mean between-film coefficient of variation (S.D./x X 100) for all milk samples examined which contained more than 350,000 leucocytes/ml. was less than 10%.
authors.forename: F H
authors.initials: FH
authors.lastname: Newbould
authors.forename: L W
authors.initials: LW
authors.lastname: Phipps