Effects of Right Hemicolectomy on Fecal Nitrogen Excretion in Rats

1993 ◽  
Vol 37 (2) ◽  
pp. 85-89
Author(s):  
D. Bustos ◽  
G. Negri ◽  
J.C. Bandi ◽  
M.I. Caldarini ◽  
K. Ogawa ◽  
...  
Keyword(s):  
Right Hemicolectomy ◽  
Nitrogen Excretion ◽  
Fecal Nitrogen

THE ENDOGENOUS URINARY AND METABOLIC FECAL NITROGEN EXCRETIONS OF NEWBORN DAIRY CALVES

1957 ◽  
Vol 37 (2) ◽  
pp. 152-156 ◽  
Author(s):  
H. M. Cunningham ◽  
G. J. Brisson
Keyword(s):  
Body Weight ◽  
Dry Matter ◽  
Nitrogen Excretion ◽  
Dairy Calves ◽  
Dry Matter Intake ◽  
Fecal Nitrogen ◽  
Endogenous Urinary Nitrogen ◽  
Metabolic Fecal Nitrogen ◽  
Urinary Nitrogen Excretion ◽  
Urinary Nitrogen

Daily observations were made on the fecal and urinary nitrogen excretions of four calves fed nitrogen-free diets during the second and fifth weeks after birth. The endogenous urinary nitrogen excretion was equivalent to 65.3 mg. per kg. of body weight (W) per day or 186 mg. per kg. W0.72. The metabolic fecal nitrogen excretion averaged 44.0 mg. per kg. of body weight per day or 0.334 per cent of the dry matter intake.

Prediction of urinary and fecal nitrogen excretion by beef cattle1

2014 ◽  
Vol 92 (10) ◽  
pp. 4669-4681 ◽  
Author(s):  
R. L. Dong ◽  
G. Y. Zhao ◽  
L. L. Chai ◽  
K. A. Beauchemin
Keyword(s):  
Nitrogen Excretion ◽  
Fecal Nitrogen

NITROGEN DIGESTIBILITY OF VARIOUS SELECTED WHEAT FRACTIONS

1969 ◽  
Vol 49 (1) ◽  
pp. 105-112 ◽  
Author(s):  
J. D. Summers ◽  
E. T. Moran Jr. ◽  
W. F. Pepper
Keyword(s):  
Feed Intake ◽  
Dry Matter ◽  
Protein Efficiency Ratio ◽  
Nitrogen Excretion ◽  
Poor Correlation ◽  
Efficiency Ratio ◽  
Protein Supplements ◽  
Fecal Nitrogen ◽  
Net Protein ◽  
Product Series

Nitrogen digestibility values were determined with rats for wheat bran, shorts, red dog and germ from nine different wheat samples. Red dog and germ resulted in similar and the highest values obtained, followed by shorts and then bran. By and large, most samples within a particular by-product series gave similar nitrogen digestibility values and where differences were noted, these in many cases paralleled the results of the other wheat fractions. A good correlation (r = 0.90) was obtained between fecal nitrogen excretion and fecal dry matter excretion when all treatments were compared. A similar comparison between feed intake and fecal nitrogen excretion resulted in a poor correlation (r = 0.33), suggesting that with protein supplements of different composition, feed intake is not a good measure of metabolic fecal nitrogen. The merits of using nitrogen digestibility values as a measure of the nutritional worth of a protein as compared with net protein utilization and protein efficiency ratio values are discussed.

Lack of Correlation Between Fecal Elastase-1 Levels and Fecal Nitrogen Excretion in Preterm Infants

2008 ◽  
Vol 47 (5) ◽  
pp. 517-521 ◽  
Author(s):  
Luigi Corvaglia ◽  
Vittoria Paoletti ◽  
Barbara Battistini ◽  
Patrizia Simoni ◽  
Giacomo Faldella
Keyword(s):  
Preterm Infants ◽  
Nitrogen Excretion ◽  
Fecal Nitrogen ◽  
Fecal Elastase ◽  
Elastase 1

Fermentable carbohydrate exerts a urea-lowering effect in normal and nephrectomized rats

1997 ◽  
Vol 272 (3) ◽  
pp. G515-G521 ◽  
Author(s):  
H. Younes ◽  
C. Remesy ◽  
S. Behr ◽  
C. Demigne
Keyword(s):  
Potato Starch ◽  
Short Chain Fatty Acids ◽  
Nitrogen Excretion ◽  
Nitrogen Transfer ◽  
Plasma Urea ◽  
Fecal Nitrogen ◽  
Cecal Wall ◽  
Fermentable Carbohydrates ◽  
Urinary Nitrogen Excretion ◽  
Urinary Nitrogen

The influence of nondigestible carbohydrate on intestinal fermentations and on the route of nitrogen excretion has been investigated in normal rats and in unilaterally nephrectomized rats. Rats were adapted to 10% casein diets, either fiber free or containing different levels of two fermentable carbohydrates, inulin or crude potato starch. Ingestion of fermentable carbohydrate led to a considerable enlargement of the cecum because of hypertrophy of the cecal wall and an increase in cecal contents. Cecal digesta contained elevated concentrations of short-chain fatty acids, resulting in acidic pH. Diets containing fermentable carbohydrate enhanced fecal nitrogen excretion, which was more than doubled at the highest level of inulin or potato starch. In parallel, urinary nitrogen excretion was significantly decreased by fermentable carbohydrate. Although these changes were similar in all animals, there were quantitative differences in the response of nephrectomized animals to fermentable carbohydrate. In nephrectomized rats, plasma urea concentrations were more than 2.5 times higher than in normal rats (5.8 mM compared with 2.2 mM). Plasma urea concentrations were reduced by approximately 50% when normal rats were fed diets containing 7.5-15% inulin or 10-20% resistant starch. In nephrectomized animals fed the highest level of fermentable carbohydrate, plasma urea concentrations were also significantly decreased, but only by 30%. In nephrectomized rats, the concentration of nitrogen cycling in the cecum was greater (urea nitrogen transfer into the cecum was 50-60% greater and ammonia flux from the cecal lumen to the blood was two times higher than in normal rats), but fecal nitrogen excretion was equivalent in normal and nephrectomized animals. When expressed as a percentage of total nitrogen excretion, fecal nitrogen excretion was <20% in animals fed fiber-free diets, compared with 45-50% in normal animals and 40% in nephrectomized animals fed fermentable carbohydrate.

In vivo Digestibility of Kleingrass from Fecal Nitrogen Excretion

2003 ◽  
Vol 56 (1) ◽  
pp. 52 ◽  
Author(s):  
Carlos M. Ferri ◽  
Nestor P. Stritzler ◽  
Miguel A. Brizuela ◽  
Horacio J. Petruzzi
Keyword(s):  
Nitrogen Excretion ◽  
Fecal Nitrogen

Effect of Dietary Fiber Components on Fecal Nitrogen Excretion and Protein Utilization in Growing Rats

1982 ◽  
Vol 112 (4) ◽  
pp. 658-666 ◽  
Author(s):  
Nalini Shah ◽  
Mokhtar T. Atallah ◽  
Raymond R. Mahoney ◽  
Peter L. Pellett
Keyword(s):  
Dietary Fiber ◽  
Nitrogen Excretion ◽  
Protein Utilization ◽  
Fecal Nitrogen ◽  
Growing Rats ◽  
Fiber Components
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