Nutrients Utilization Efficiency
Mostrando 1-12 de 34 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. Nutrient stock and nutritional efficiency of woody species in dry tropical forest as reforestation indicators
ABSTRACT Efficient forest species can be indicated for reforesting environments, which present nutritional restriction. The objective of this study was to determine the nutrient stock in leaf biomass of the species of greatest importance value (IV) in a tropical dry forest fragment, as well as to evaluate the nutritional efficiency of these species as refore
Rev. Ceres. Publicado em: 11/11/2019
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3. The Role of ß-Mannanase (Hemicell) in Improving Poultry Productivity, Health and Environment
ABSTRACT The poultry nutritionists constantly attempt to identify and alleviate the factors responsible for adverse effects on nutrient utilization and production performance in avian species, which are necessary for successful productivity of poultry. Enhanced feed utilization can reduce levels of some nutrients in the diet with concomitant mitigation in nu
Braz. J. Poult. Sci.. Publicado em: 11/11/2019
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4. Manejo da biomassa e sustentabilidade nutricional em povoamentos de Eucalyptus spp. em pequenas propriedades rurais
Resumo O estudo foi realizado com o objetivo de subsidiar práticas de manejo nutricional de povoamentos de Eucalyptus spp. em pequenas propriedades rurais no estado do Rio Grande do Sul. Foram avaliados povoamentos de 2, 4, 6 e 8 anos de idade, com amostragem de 24 árvores e determinação da biomassa e nutrientes nos componentes: folha, galho vivo, galho
Ciênc. Florest.. Publicado em: 30/05/2019
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5. Sustained swimming improves fish dietary nutrient assimilation efficiency and body composition of juvenile Brycon amazonicus
ABSTRACT Sustained swimming (SS) usually promotes beneficial effects in growth and feed conversion of fishes. Although feed efficiency is improves at moderate water velocity, more information is required to determine the contributions of this factor on growth and body composition. Body composition and efficiency responses to the use of nutrients were determi
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-08
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6. Sunflower Meal and Supplementation of an Enzyme Complex in Layer Diets
ABSTRACTThe objective of this experiment was to evaluate the performance of 64- to 79-wk-old laying hens fed diets supplemented with an enzyme complex (EC) and containing increasing sunflower meal (SFM) levels. A total of 384 Hy-Line Brown layers were distributed according to a randomized block design in a 4 × 2 factorial arrangement (four levels of SFM, an
Rev. Bras. Cienc. Avic.. Publicado em: 2015-09
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7. The influence of covering methods on the nutritive value of corn silage for lactating dairy cows
The objective of this study was to evaluate the effect of covering methods on the nutritive value of corn silage and performance of dairy cows. Whole-plant corn was harvested at 340 g/kg of dry matter (DM) and ensiled for 135 d in horizontal silos covered with one of the following methods: oxygen barrier film (45-µm thick) + white-on-black polyethylene film
R. Bras. Zootec.. Publicado em: 2014-09
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8. Productive performance and efficiency of utilization of the diet components in dairy cows fed castor meal treated with calcium oxide
The effect of replacing of 0; 0.33; 0.67 and 1.0 (kg/kg) of soybean meal (SBM) by undecorticated castor seed meal treated with calcium oxide (CMT - 60 g/kg) was evaluated on performance and efficiency of nutrient utilization in dairy cows. Sixteen Holstein and crossbred cows were distributed in four 4 × 4 latin squares. Animals received concentrated feed at
R. Bras. Zootec.. Publicado em: 2012-10
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9. Intake, digestibility and nitrogen use efficiency in crossbred F1 Holstein × Zebu grazing cows
The objective of this study was to evaluate intake, digestibility and nitrogen (N) compounds use efficiency in F1 Holstein × Zebu grazing cows. Eighteen crossbred cows (six Holstein × Gir, six Holstein × Guzerat, and six Holstein × Nellore) were used in the experiment, constituting three experimental treatments in simple random samples, under the same fe
Revista Brasileira de Zootecnia. Publicado em: 2012-04
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10. Nitrogen use efficiency in upland rice genotypes.
Nitrogen (N) deficiency is one of the most yield-limiting nutrients in upland rice growing regions word wide. A greenhouse experiment was conducted with the objective to evaluate nineteen upland rice (Oryza sativa. L.) genotypes for N use efficiency. The soil used in the experiment was an Oxisol and two N levels used were without N application (low level) an
Journal of Plant Nutrition. Publicado em: 2011
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11. Resposta de genotipos de arroz de sequeiro favorecido a fertilidade do solo.
Na agricultura moderna, o custo de fertilizantes constitui a fracao principal do custo total da producao. Nesta situacao, o uso de genotipos eficientes no uso de nutrientes pode ser uma solucao complementar para melhorar a producao e reduzir o custo de producao em solos deficientes em nutrientes. Foram conduzidos dois experimentos de campo no Centro Nacional
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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12. Zeolita em dietas de bovinos de corte / Zeolite in diets for beef cattle
The objective was to evaluate the effect of adding different levels of zeolite on the intake and total and partial apparent digestibility of nutrients, ruminal parameters (pH and ammonia nitrogen), production of microbial nitrogen compounds, microbial efficiency and blood parameters (glucose and urea) in the diet of beef cattle. The treatments consisted of t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/08/2010