title: [Interdependence of the level of total proteins, magnesium and beta-carotene in the plasma of dairy cows].
abstract: The degree of dependence of the concentration of total protein, magnesium and beta-carotene in the blood plasma of over 3,400 dairy cows in the first and second phases of lactation and in months 8 and 9-9.5 of pregnancy was attested statistically. It was shown that in late pregnancy the concentration of all three indices drops both with winter and summer feed rations and that the connection between all three pairs of indices is positive. The highest values of the linear correlation coefficient were ascertained between the total protein and magnesium of blood plasma (+0.87 in the winter period, +0.63 in the summer period and +0.75 in both periods), the correlation was somewhat lower between magnesium and beta-carotene (+0.56, +0.75 and +0.36) and it was lowest between total protein and beta-carotene (+0.45, +0.41 and +0.42). The discussion deals with the causes of the stochastic correlation of these components of blood plasma.
mesh_terms: D000821:Animal Feed; D000818:Animals; D001798:Blood Proteins / Q000032:analysis*; D002338:Carotenoids / Q000097:blood*; D002417:Cattle / Q000097:blood*; D003612:Dairying; D005260:Female; D008274:Magnesium / Q000097:blood*; D019207:beta Carotene
chemical_list: D001798:Blood Proteins; D019207:beta Carotene; D002338:Carotenoids; D008274:Magnesium
vernacular_title: Závislost koncentrací celkové bílkoviny, horcíku a beta-karoténu krevní plazmy dojnic.