[The nitrate content in milk].
Analytical possibilities for nitrate determination in milk on the base of photometric methods are discussed. An automated method, similar to Nijhuis u. a. (1979), is proposed using flow stream analyser ADM 300. Natrium nitrate (5 g and 10 g/kg live weight resp.) was given to two dairy cows after morning feeding on the 1st and on the 3rd day of experiment. The increase of nitrate content in the milk was very quick, maximal concentrations after 2 h were found as 5.6 mg/l (animal 1) and 3.2 mg nitrate-N/l (animal 2). But nitrate also disappeared relatively quickly, after 24 h there only values were observed corresponding to normal range of 1 mg/l.
Geissler
C
C
Veterinärmed. Fakultät Universität Leipzig Institut für Fütterung und Ernährungsschäden.
Steinhöfel
O
O
Ulbrich
M
M
D000818:Animals; D002417:Cattle / Q000502:physiology*; D005260:Female; D007774:Lactation / Q000378:metabolism*; D008892:Milk / Q000032:analysis*; D009566:Nitrates / Q000032:analysis* / Q000493:pharmacokinetics
D009566:Nitrates
Zum Nitratgehalt in der Milch.