Results 1 to 10 of about 2,474,981 (306)

Determination of nitrogen balance in agroecosystems

open access: yesMethodsX, 2017
Nitrogen balance in agroecosystems provides a quantitative framework of N inputs and outputs and retention in the soil that examines the sustainability of agricultural productivity and soil and environmental quality.
Upendra M. Sainju
doaj   +5 more sources

Apparent Total Tract Digestibility of Energy, Concentrations of Digestible Energy and Metabolizable Energy, and Nitrogen Balance in Growing Pigs Fed Bakery Meal and Biscuit Meal with Multi-Enzyme [PDF]

open access: yesAnimals
A total of eight ([Landrace × Yorkshire] × Duroc) barrows with an initial body weight (BW) of 33.06 ± 1.16 kg were placed in metabolism crates. The dietary treatments were structured using a 4 × 2 factorial design, which included two factors: four diet ...
Jihwan Lee   +9 more
doaj   +2 more sources

Cow-level factors associated with nitrogen utilization in grazing dairy cows using a cross-sectional analysis of a large database

open access: yesJournal of Dairy Science, 2023
: Reducing nitrogen pollution while maintaining milk production is a major challenge of dairy production. One of the keys to delivering on this challenge is to improve the efficiency of how dairy cows use nitrogen.
E. Tavernier   +5 more
doaj   +1 more source

Spineless Cactus plus Urea and Tifton-85 Hay: Maximizing the Digestible Organic Matter Intake, Ruminal Fermentation and Nitrogen Utilization of Wethers in Semi-Arid Regions

open access: yesAnimals, 2022
The aim of this study was to evaluate the effect of replacing Tifton-85 hay (Cynodon spp. cv. Tifton 85) with 0, 150, 300, 450 and 600 g/kg dry matter (DM) of spineless cactus (SC, Nopalea cochenilifera Salm-Dyck) plus urea and ammonium sulfate (UAS; 9:1)
Robert E. Mora-Luna   +8 more
doaj   +1 more source

Nutritional performance and metabolic characteristics of cattle fed tropical forages with protein and starch supplementation [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2021
Effects of protein supplementation, with and without starch supplementation, on nutritional performance and metabolic characteristics of cattle fed low- and medium-quality tropical forages were evaluated using 4 cannulated steers distributed according to
MARCIA O. FRANCO   +5 more
doaj   +1 more source

Evaluation of Amino Acid (ALAMIN-SN) in Burns

open access: yesIndian Journal of Plastic Surgery, 1993
20 patients of burns in the control group and 20 in the ALAMIN group were enrolled in this open labelled clinical trial to determine the effect of amino acid infusion on selected parameters.
Dr. Mrs Siti Roy Chowdhary   +5 more
doaj   +1 more source

Longitudinal association between dietary protein intake and survival in peritoneal dialysis patients

open access: yesRenal Failure, 2023
Background Decreased dietary protein intake (DPI) may lead to protein-energy malnutrition and may be associated with increased mortality risk. We hypothesized that longitudinal changes in dietary protein intake have independent associations with survival
Shu-Hong Bi   +5 more
doaj   +1 more source

The mysteries of nitrogen balance [PDF]

open access: yesNutrition Research Reviews, 1999
AbstractThe first part of this review is concerned with the balance between N input and output as urinary urea. I start with some observations on classical biochemical studies of the operation of the urea cycle. According to Krebs, the cycle is instantaneous and automatic, as a result of the irreversibility of the first enzyme, carbamoyl-phosphate ...
openaire   +2 more sources

The Alkali-Tolerant Bacterium of Bacillus thuringiensis EM-A1 Can Effectively Perform Heterotrophic Nitrification and Aerobic Denitrification

open access: yesFrontiers in Environmental Science, 2022
Removal of nitrogen from hydroxylamine could effectively improve the wastewater treatment efficiency. In this work, Bacillus thuringiensis EM-A1 was obtained from a biogas digester with hydroxylamine as the only nitrogen source.
Tingjiang Wang   +5 more
doaj   +1 more source

Influence of organic acids or fermentable carbohydrates on feeding value of urea treated wheat straw for Nili-Ravi buffalo bulls fed ad libitum diets

open access: yesItalian Journal of Animal Science, 2010
Four Nili-Ravi Buffalo bulls were used to study the influence of urea treated wheat straw (UTWS) ensiled with organic acids or fermentable carbohydrates on nutrients digestibility and nitrogen (N) balance.
Wang-Shik Lee   +5 more
doaj   +1 more source

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