Mineral Availability
Mostrando 13-24 de 99 artigos, teses e dissertações.
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13. Nutritional characteristics of biofortified common beans
Iron and zinc deficiency can cause anemia and alterations in the immune response and impair work capacity. To minimize this problem, biofortification has been developed to improve and/or maintain the nutritional status of the population. Beans are an important source of carbohydrates, proteins, and minerals. The objective of this study is to characterize bio
Food Sci. Technol. Publicado em: 2014-09
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14. Do soil fertilization and forest canopy foliage affect the growth and photosynthesis of Amazonian saplings?
Most Amazonian soils are highly weathered and poor in nutrients. Therefore, photosynthesis and plant growth should positively respond to the addition of mineral nutrients. Surprisingly, no study has been carried out in situ in the central Amazon to address this issue for juvenile trees. The objective of this study was to determine how photosynthetic rates an
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-02
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15. Supplementation of Nellore young bulls on Marandu grass pastures in the dry period of the year
The objective of this study was to evaluate performance and daytime ingestive behavior of 84 Nellore young bulls in the post-weaning phase kept on Brachiaria brizantha cv. Marandu pastures during the dry season. Treatments were protein mineral supplementation (1 g/kg body weight) and protein+energy mineral supplementation (3 g/kg body weight). The experiment
R. Bras. Zootec.. Publicado em: 2013-06
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16. Caracterização detalhada de material de referência certificado de carvão brasileiro
The use and characterization of the first Certified Reference Material (CRM) of Brazilian coal for analytical quality control are presented. All results were determined within the limits of repeatability and reproducibility allowed under the standards. Notable among the characterization parameters was the mineral matter content (45.39%) obtained by an altern
Quím. Nova. Publicado em: 2013
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17. Níveis dietéticos de zinco e manganês sobre o desempenho, disponibilidade e mineralização óssea de frangos de corte / Levels of dietary zinc and manganese on performance, availability and bone mineralization of broilers
Foram realizados dois experimentos com o objetivo de determinar a concentração de zinco e manganês na dieta de frangos de corte sobreas características de desempenho, disponibilidade e mineralização óssea, além da comparação de métodos para quantificar o grau de mineralização óssea. Em cada um dos experimentos foram distribuídos 320 pintinhos
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/10/2012
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18. DISPONIBILIDADE DO NITROGÊNIO EM SOLOS DE VÁRZEA E PARÂMETROS DA PLANTA PARA AVALIAÇÃO NUTRICIONAL DA CULTURA DO ARROZ IRRIGADO / NITROGEN AVAILABILITY IN LOWLAND SOILS AND PLANT PARAMETERS FOR NUTRITIONAL EVALUATION OF FLOODED RICE CROP
O objetivo desse trabalho foi avaliar a mineralização de N em condições aeróbicas e anaeróbicas em experimento de incubação e monitorar o nível de N nas plantas com o uso clorofilômetro para estabelecer um valor crítico de leitura SPAD (Soil Plant Analysis Development) para a cultura do arroz irrigado. Foram desenvolvidos dois estudos, sendo o est
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2012
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19. Adubação e biofortificação: caraterização química e física do arroz (Oryza sativa L.) / Biofortification and fertilization: chemical and physical characterization of rice (Oryza sativa L.)
O arroz (Oryza sativa L.) é um dos cereais mais produzidos e consumidos no mundo, caracterizando como principal alimento para mais da metade da população mundial. Sua importância é destacada principalmente em países em desenvolvimento, tais como o Brasil, desempenhando papel estratégico em níveis econômico e social. Atualmente, é crescente o númer
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/04/2012
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20. DISPONIBILIDADE E TRANSFERÊNCIA DE NITROGÊNIO, FÓSFORO E POTÁSSIO EM UM ARGISSOLO SUBMETIDO À APLICAÇÃO DE FONTES DE NUTRIENTES / AVAILABILITY AND TRANSFER OF NITROGEN, PHOSPHORUS AND POTASSIUM IN SANDY TYPIC HAPLUDALF SOIL SUBMITTED TO THE APPLICATION OF SOURCES OF NUTRIENTS
The swine and cattle activities are of great economic and social importance in Brazil in the southern region, but generate of large volumes of waste, that when applied to the soil can be mineralized and part of the nutrients released can be absorbed by plants or transferred by runoff or percolation. The aimed of this study was to evaluate the rate of mineral
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
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21. Levels of supplementation for grazing pregnant beef cows during the dry season
The objective of this study was to evaluate the effect of different levels of multiple supplement supply on the nutritional characteristics and productive performance of pregnant cows grazing on Brachiaria decumbens Stapf. during the dry season. The experimental area was composed of four 3.0 ha paddocks with availability of potentially digestible dry matter
R. Bras. Zootec.. Publicado em: 2012-12
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22. Apparent nutrient digestibility and mineral availability of protein-rich ingredients in extruded diets for Nile tilapia
Apparent digestibility coefficients (ADC) of gross energy and dry matter (DM) and mineral availability were evaluated for eight protein-rich ingredients (corn gluten meal, soybean meal, cottonseed meal at 280.0 and 380.0 g/kg, poultry by-product meal, meat meal, fish meal and feather meal) in compound diets for Nile tilapia. Chromic oxide was used as inert d
R. Bras. Zootec.. Publicado em: 2012-08
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23. Impacto de diferentes algoritmos e geometria de depósitos minerais no planejamento de longo prazo
The main objective of mine planning is to determine ore quantity and quality distribution along a time sequence, i.e., scheduling the ore necessary to make the project technically and economic viable. These temporal sequences are fundamental for the financial success of a mine activity and presently this optimal sequence can be obtained through various minin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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24. Efeito dos processos de irradiação e germinação nos aspectos nutricionais, sensoriais e microbiológicos em grãos de soja (Glycine m ax Merril) cultivar BRS216 / Effect of irradiation and germination processes in the nutritional, sensory and microbiological in soybeans (Glycine max Merrill) cultivra BRS216
Soybean (Gycine max (L.) Merrill) is an important legume for human diets due its potential health benefits. Because of the increasing stimulus to soybean consumption, mainly due to its several bioactive compounds, some processing methods have been studied as a way to know changes that occur in these compounds during the processes. Thus, this study aimed to a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/10/2011