title: Effects of parity and stage of lactation on adenosine triphosphate, somatic cell count and antitrypsin content in cows' milk.
abstract: Significant effects of parity and stage of lactation were found on ATP content, somatic cell count and antitrypsin content when using morning milk samples from 39 cows over a period of 18 months. A close similarity was evident between variation in ATP and somatic cell count, except during the first 10 d after parturition when the variation in ATP was more pronounced. The same result was obtained in the whole material as well as in a healthy subset. This study shows clearly that parity and stage of lactation must be taken into account when establishing normal values for ATP as an indicator of mastitis.
authors.affiliation: Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala.
authors.forename: U
authors.initials: U
authors.lastname: Emanuelson
authors.forename: T
authors.initials: T
authors.lastname: Olsson
authors.forename: T
authors.initials: T
authors.lastname: Mattila
authors.forename: G
authors.initials: G
authors.lastname: Aström
authors.forename: O
authors.initials: O
authors.lastname: Holmberg
mesh_terms: D000255:Adenosine Triphosphate / Q000032:analysis*; D000818:Animals; D002417:Cattle / Q000502:physiology*; D005260:Female; D007774:Lactation / Q000502:physiology*; D008892:Milk / Q000032:analysis* / Q000166:cytology; D010298:Parity; D011247:Pregnancy; D014361:Trypsin Inhibitors / Q000032:analysis*
chemical_list: D014361:Trypsin Inhibitors; D000255:Adenosine Triphosphate