title: [Effect of intensive use of nitrogen fertilizers in green pastures on the activity of aspartate and alanine aminotransferases in the plasma of milking cows].
abstract: The experiment was conducted in order to determine the influence of fodder from pastures which were intensely, though to a different degree, fertilized with nitrogen (420 and 840 kg N/ha) year on the AspAT and AlAT activity in the plasma of cows. The first aminotransferase activity determination was made at the end of the second year of the feeding experiment. A significant increase of AspAT activity in the plasma indicated that such intensive fertilization was and unfavorable influence on liver activity. Increased AspAT activity was retained from the end of 1972 up to the middle of 1974, and after that the values decreased to the reference value level and remained so till the end of this experiment, that is to the year 1975. AlAT activity did not change significantly throughout the experimental period. Both AspAT and AlAT show small seasonal changes.
mesh_terms: D000410:Alanine Transaminase / Q000097:blood*; D000821:Animal Feed; D000822:Animal Husbandry; D000818:Animals; D001219:Aspartate Aminotransferases / Q000097:blood; D002417:Cattle / Q000502:physiology*; D003612:Dairying; D005260:Female; D005308:Fertilizers; D009584:Nitrogen / Q000494:pharmacology*
chemical_list: D005308:Fertilizers; D001219:Aspartate Aminotransferases; D000410:Alanine Transaminase; D009584:Nitrogen
vernacular_title: Wpływ intensywnego nawozenia uzytków zielonych azotem na aktywność aminotransferazy asparaginianowej i alaninowej w osoczu krów mlecznych.