The rate and pattern of urea infusion into the rumen of wethers alters nitrogen balance and plasma ammonia

2014 ◽  
Vol 98 (6) ◽  
pp. 1047-1053 ◽  
Author(s):  
M. I. Recavarren ◽  
G. D. Milano
Keyword(s):  
Nitrogen Balance ◽  
Plasma Ammonia ◽  
Urea Infusion

NON-PROTEIN NITROGEN IN CORN SILAGE: A PARTIAL CHARACTERIZATION, ITS UTILIZATION IN THE RUMEN AND EFFECT UPON DIGESTIBILITY AND RETENTION OF NITROGEN IN LAMBS

1978 ◽  
Vol 58 (4) ◽  
pp. 681-690 ◽  
Author(s):  
J. G. BUCHANAN-SMITH ◽  
Y. T. YAO
Keyword(s):  
Soybean Meal ◽  
Nitrogen Balance ◽  
Corn Silage ◽  
Partial Characterization ◽  
Release Rates ◽  
Protein Nitrogen ◽  
Total N ◽  
Ammonia Release ◽  
Urea Infusion

Three trials were conducted. In trial 1, 30 samples of silage were collected from farms and analyzed. Non-protein nitrogen (NPN) contributed an average of 46.4% to the total N. Of the NPN-N, an average of 10.1% was ammonia-N, 30.4% was alpha amino-N, 1.2% was amide-N and 58.3% was not identified. Extensive variability was demonstrated among samples for all these values except ammonia-N. In trial 2, silage effluents, in which NPN-N was 95% or more of total N, were compared with urea and soybean meal as to ammonia release rates in the rumen after isonitrogenous infusions of each material. Ammonia levels after infusion of corn silage effluent were nearer to those after soybean meal infusion than those after urea infusion. In trial 3, frozen corn (low in NPN) was compared with ensiled corn in a digestion and balance trial using lambs. Nitrogen balance was not significantly different between corns but was improved by supplementing either of them with urea.

NITROGEN CYCLES IN CROP ROTATIONS DIFFERING IN FERTILIZATION

2015 ◽  
Author(s):  
Saulius GUŽYS ◽  
Stefanija MISEVIČIENĖ
Keyword(s):  
Crop Rotation ◽  
Soil Nitrogen ◽  
Nitrogen Fertilizer ◽  
Nitrogen Balance ◽  
Mineral Soil ◽  
Crop Productivity ◽  
Drainage Water ◽  
Perennial Grasses ◽  
Crop Rotations ◽  
Cereal Crop

The use of nitrogen fertilizer is becoming a global problem; however continuous fertilization with nitrogen ensures large and constant harvests. An 8 year research (2006–2013) was conducted to evaluate the relationships between differently fertilized cultivated plant rotations. The research was conducted in Lipliunai (Lithuania) in the agroecosystem with nitrogen metabolism in fields with deeper carbonaceous soil, i.e. Endocalcari Endohypogleyic Cambisol (CMg-n-w-can). The research area covered three drained plots where crop rotation of differently fertilized cereals and perennial grasses was applied. Samples of soil, water and plants were investigated in the Chemical Analysis Laboratory of the Aleksandras Stulginskis University certified by the Environment Ministry of the Republic of Lithuania. The greatest productivity was found in a crop rotation with higher fertilization (N32-140). In crop rotation with lower fertilization (N24-90) productivity of cereals and perennial grasses (N0-80) was 11–35 % lower. The highest amount of mineral soil nitrogen was found in cereal crop rotation with higher fertilization. It was influenced by fertilization and crop productivity. The lowest Nmin and Ntotal concentrations in drainage water were found in grasses crop rotation. Crop rotations of differently fertilized cereals increased nitrogen concentration in drainage water. Nmin concentration in water depended on crop productivity, quantity of mineral soil nitrogen, fertilization, and nitrogen balance. The lowest nitrogen leaching was found in the crop rotation of grasses. Cereal crop rotation increased nitrogen leaching by 12–42 %. The usage of all crop rotations resulted in a negative nitrogen balance, which essentially depended on fertilization with nitrogen fertilizer.

Effects of energy supplementation on energy losses and nitrogen balance of steers fed green-chopped wheat pasture I: Calorimetry

2017 ◽  
Vol 95 (5) ◽  
pp. 2133
Author(s):  
A. L. Shreck ◽  
P. J. Ebert ◽  
E. A. Bailey ◽  
J. S. Jennings ◽  
K. D. Casey ◽  
...  
Keyword(s):  
Nitrogen Balance ◽  
Energy Losses ◽  
Wheat Pasture ◽  
Energy Supplementation

WIND-ERODED NITROGEN BALANCE IN AN ENTIC HAPLUSTOLL UNDER DIFFERENT TILLAGE CONDITIONS

2019 ◽  
Vol 18 (12) ◽  
pp. 2635-2641
Author(s):  
Carlos Asensio ◽  
Sergio Alberto Abascal ◽  
Daniel Eduardo Buschiazzo
Keyword(s):  
Nitrogen Balance

SOIL NITROGEN BALANCE UNDER CEREALS AND PERENNIAL CROPS

2019 ◽  
Vol 14 (10) ◽  
pp. 1564-1574
Author(s):  
Anatoliy Gumbarov ◽  
◽  
Evgeniy Dolobeshkin ◽  
Viktor Shishkin ◽  
Aleksandr Shishkin ◽  
...  
Keyword(s):  
Soil Nitrogen ◽  
Nitrogen Balance ◽  
Perennial Crops ◽  
Soil Nitrogen Balance

Evaluation of Serum Visceral Protein Levels as Indicators of Nitrogen Balance in Thermally Injured Patients

1991 ◽  
Author(s):  
Dawn E. Carlson ◽  
William G. Cioffi ◽  
Mason Jr. ◽  
McManus Arthur D. ◽  
Pruitt William F. ◽  
...  
Keyword(s):  
Nitrogen Balance ◽  
Protein Levels ◽  
Injured Patients

Nitrogen Balance in the Southern San Joaquin Valley

1976 ◽  
Vol 5 (3) ◽  
pp. 274-278 ◽  
Author(s):  
Robert J. Miller ◽  
Richard B. Smith
Keyword(s):  
Nitrogen Balance ◽  
San Joaquin Valley

Effect of Dietary Volatile Fatty Acids on Nitrogen Balance in Chickens.

1997 ◽  
Vol 34 (5) ◽  
pp. 349-351
Author(s):  
Hiroshi KAMISOYAMA ◽  
Zeng-Tao SUN ◽  
Mineo HASHIGUCHI ◽  
Yutaka ISSHIKI
Keyword(s):  
Fatty Acids ◽  
Nitrogen Balance ◽  
Volatile Fatty Acids
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