Intake nitrogen, fecal nitrogen and urinary nitrogen
were analysed for total nitrogen by Kjedahl method, and nitrogen balance and nitrogen retention were calculated according to the following formulas:
The total nitrogen intake, urinary nitrogen
and nitrogen retention were similar among the frequencies.
The original purpose of the OPEN study, completed in 2000, was to assess self-reported dietary measurement error by comparing results from self-reported dietary intake questionnaires with objective biomarkers: doubly labeled water and urinary nitrogen
From Week 2 to Week 3, shifts to more positive nitrogen balances occurred due to decreases in urinary nitrogen
While on the study's high protein diet, the potassium bicarbonate, or alkalinized, group--when compared to the placebo group--had reduced urinary nitrogen
Additionally, the present study showed that the fecal and urinary nitrogen
outputs were similar, which implied that the nitrogen digestibility was greater for the SDPP diet (Thomson et al.
This affects endogenous urinary nitrogen
levels in an individual's feces and zero nitrogen balance AME calculations were needed.
The measurement of VO2, which is the equivalent of metabolic rate, and VCO2, as well as the measurement of urinary nitrogen
(UN), can be used to determine the resting energy expenditure (REE).
bone marrow function; -- hematocrit levels in peripheral blood; -- serum levels for alanine aminotransferase levels (ALT) and aspartate aminotransferase levels (AST), both of which provide sensitive measures of hepatic toxicity; -- serum protein and albumin levels; -- bound urinary nitrogen
(Bun) levels; -- serum calcium levels; -- blood glucose levels.
The differences among cultivars were not significant in nitrogen intake, faecal nitrogen, nitrogen absorbed, urinary nitrogen
and nitrogen balance.
Splanchnic metabolism of nitrogenous compounds and urinary nitrogen
excretion in steers fed alfalfa under condition of increased absorption of ammonia and L-arginine supply across the portal-drained viscera.
Total urinary nitrogen
was determined in 24-h urine pools by highly sensitive chemiluminescence (16) with an Antek automated nitrogen analyzer (Antek 7000V).