Inadequacy of Urinary Urea for Estimating Nitrogen Balance
نویسندگان
چکیده
منابع مشابه
Chemiluminescent measurement of total urinary nitrogen for accurate calculation of nitrogen balance.
This instrumental method for total urinary nitrogen (TUN) is based on the principle of gas-phase chemiluminescence. Results correlate well with measurements of TUN by the Kjeldahl method, which has long provided the means to calculate nitrogen balances for nutritional management. In recent years, because of speed and convenience of measurement, determination of urinary urea nitrogen (UUN) has b...
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Milk urea nitrogen (MUN) has been introduced as a means to estimate urinary nitrogen (N) excretion and protein status of dairy cattle. For Holstein cows, the amount of urinary N excreted (g/d) was originally reported to be 12.54 x MUN (mg/dl), but recently urinary N (g/d) was reported to equal 17.64 x MUN (mg/dl). The objectives of the present study were to evaluate models to predict urinary N ...
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ژورنال
عنوان ژورنال: Annals of Clinical Biochemistry: International Journal of Laboratory Medicine
سال: 1990
ISSN: 0004-5632,1758-1001
DOI: 10.1177/000456329002700521