Nutrient Balance
Mostrando 1-12 de 129 artigos, teses e dissertações.
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1. Nutrition of tree species in tropical dry forest and rainforest environments
ABSTRACT Knowledge of the nutritional efficiency of species can help revegetation of forest areas, guiding the use of species that best adapt to environmental humidity, altitude and diversity. The objective of this study was to evaluate the nutrient utilization efficiency of N, P, K, Ca and Mg of dominant species in tropical dry forest and rainforest environ
Rev. Ceres. Publicado em: 2020-02
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2. News for a New Year
ABSTRACT Objective Provide a comprehensive view of the events surrounding the sugar consumption, under conditions of energy equivalence; through the analysis of behavioral aspects of intake, and of biochemical, metabolic and physiological parameters, as well as the effect of this nutrient on the plasticity of adipose tissue. Materials and methods Newly wea
Arch. Endocrinol. Metab.. Publicado em: 2020-02
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3. High-sugar diet leads to obesity and metabolic diseases in ad libitum -fed rats irrespective of caloric intake
ABSTRACT Objective Provide a comprehensive view of the events surrounding the sugar consumption, under conditions of energy equivalence; through the analysis of behavioral aspects of intake, and of biochemical, metabolic and physiological parameters, as well as the effect of this nutrient on the plasticity of adipose tissue. Materials and methods Newly wea
Arch. Endocrinol. Metab.. Publicado em: 2020-02
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4. Cover cropping system and mulching can shape soil microbial status in fruit orchards
ABSTRACT The use of cover crop in agricultural fields has been well elucidated, especially regarding nitrogen fixation from legume crops and their function as weed protection. Furthermore, to cover crops can benefit the soil microbial community. This study aimed to evaluate and compare the benefits of mulching and cover cropping systems on soil microbial gro
Sci. agric. (Piracicaba, Braz.). Publicado em: 04/11/2019
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5. Modeling and prediction of sulfuric acid digestion analyses data from PXRF spectrometry in tropical soils
ABSTRACT Sulfuric acid digestion analyses (SAD) provide useful information to environmental studies, in terms of the geochemical balance of nutrients, parent material uniformity, nutrient reserves for perennial crops, and mineralogical composition of the soil clay fraction. Yet, these analyses are costly, time consuming, and generate chemical waste. This wor
Sci. agric. (Piracicaba, Braz.). Publicado em: 04/11/2019
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6. Seasonal Variation of Plant Mineral Nutrition in Fruit Trees
Abstract This research evaluated the monthly variation of plant mineral nutrition in six species of fruit trees over a year. Leaf samples were taken from the fruit trees and nutritional status (N, P, K, Ca, Mg, Fe, Zn, Cu, Mn, and Mo) was determined in the leaves in a month basis from April until November for apple, persimmon and peach. Mandarin mineral nutr
Braz. arch. biol. technol.. Publicado em: 24/10/2019
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7. Effects of varying levels of dietary protein and net energy on growth performance, nitrogen balance and faecal characteristics of growing-finishing pigs
ABSTRACT This experiment was conducted to evaluate the effects of dietary protein and net energy (NE) levels on growth performance, nutrient digestibility, nitrogen metabolism, and faecal microbiota of growing-finishing pigs. Eighteen crossed barrows were randomly allocated into one of three dietary treatments: high protein + high NE diet, low protein + high
R. Bras. Zootec.. Publicado em: 01/08/2019
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8. Do live or inactive yeasts improve cattle ruminal environment?
ABSTRACT This research was conducted to investigate the effect of live and inactive sugarcane yeast on beef cattle voluntary intake, apparent digestibility of nutrients, ruminal pH, volatile fatty acids (VFA) concentrations, and ruminal ammonia. Five rumen-cannulated Nellore heifers were distributed in a 5×5 Latin square design, with five experimental perio
R. Bras. Zootec.. Publicado em: 22/07/2019
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9. Nutritive value of elephant grass silage added with cottonseed cake in diet for sheep
RESUMO Objetivou-se avaliar o consumo, digestibilidade dos nutrientes e balanço de nitrogênio em ovinos alimentados com rações contendo silagem de capim-elefante (Pennisetum purpureum Schum) contendo 0; 7; 14 e 21% de torta de algodão. Foram utilizados vinte ovinos Morada Nova em delineamento inteiramente casualizado com quatro tratamentos e cinco repet
Rev. Ciênc. Agron.. Publicado em: 2019-06
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10. Feed restriction of F1 Holstein × Zebu cows in the final third of lactation modifies intake, nutrient digestibility, feeding behavior, and performance
ABSTRACT The objective of this study was to evaluate the effect of quantitative feed restriction level on nutrient intake and digestibility, nitrogen balance, efficiency and feeding behavior, and productive performance of F1 Holstein × Zebu cows in late lactation. Sixty F1 Holstein × Zebu cows were used at the stage of late lactation (183.0±17.5 days of l
R. Bras. Zootec.. Publicado em: 15/04/2019
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11. Simultaneous removal of nitrogen and organic carbon from swine wastewater using the pre-denitrification/nitrification process
Resumo Os efluentes dos sistemas de produção de animais confinados (SPACs), se não tratados adequadamente antes do descarte, podem interferir significativamente no balanço natural do nitrogênio no meio ambiente. Nesse trabalho, um sistema Lutzak-Ettinger modificado (MLE), consistindo de dois reatores sequenciais, um pré-desnitrificante (RD) e um nitrif
Rev. Ambient. Água. Publicado em: 25/03/2019
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12. Food web and ecological models used to assess aquatic ecosystems submitted to aquaculture activities
RESUMO: Ecossistemas aquáticos continentais desempenham papel fundamental no desenvolvimento econômico e social, entretanto, são vulneráveis à degradação ambiental devido às diversas pressões a que estão submetidos. Entre as principais atividades antrópicas a interferir nestes ambientes, podemos destacar a aquicultura. A modelagem matemática de
Cienc. Rural. Publicado em: 28/02/2019