Trace Minerals
Mostrando 1-12 de 53 artigos, teses e dissertações.
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1. Efeito do uso de minerais traços (cobre, zinco, selênio e manganês) e vitaminas (A e E) injetáveis sobre o estresse oxidativo e função de neutrófilos de fêmeas da raça Holandesa no período de transição
RESUMO O objetivo deste estudo foi avaliar o efeito metafilático de minerais traços e vitaminas A e E injetáveis, em parâmetros do estresse oxidativo e na função de neutrófilos em fêmeas da raça Holandesa no período de transição. Sessenta animais foram divididos em dois grupos: animais que receberam minerais traços e vitaminas A e E injetáveis
Arq. Bras. Med. Vet. Zootec.. Publicado em: 10/10/2019
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2. Mineralogical Evolution of Magnetic Rhodic Oxisols under Different Lithological Influences in Brazil
ABSTRACT Ferrimagnetic Fe-oxides are important soil components, which are present in most of the agricultural soils of Brazil. Distinction, origin, and assessment of the influence of these minerals on magnetism and geochemistry is a challenge for mineralogists. This study aimed to characterize mineralogically Fe-rich Rhodic Oxisols ( Latossolos Vermelhos ) o
Rev. Bras. Ciênc. Solo. Publicado em: 30/09/2019
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3. Organic trace minerals and calcium levels in broilers' diets to 21 days old
ABSTRACT: This study was undertaken to evaluate the effects of dietary calcium levels and supplementation with organic trace minerals selenium, copper, iron, zinc and manganese on performance, tissue deposition and litter mineral concentration. A total of 2,496 one-day-old male Cobb 500 broilers were randomly assigned to a 3 × 4 factorial experimental desig
Sci. agric. (Piracicaba, Braz.). Publicado em: 01/07/2019
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4. Evaluation of the Rietveld method for the mineralogical characterization of airborne dust in a mining area
Abstract In this article, we present the results of the mineralogical quantification of airborne dust from an urban area located in the Brazilian state of Minas Gerais in the vicinity of a gold mine. Three samples were collected at different points to assess spatial consistency. Results showed that the mineralogy, in relation to both major minerals and acces
REM, Int. Eng. J.. Publicado em: 2019-06
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5. Mineralogy, magnetic susceptibility and geochemistry of Fe-rich Oxisols developed from several parent materials
ABSTRACT: Fe-rich Oxisols on mafic rocks in Brazil generally have high magnetic susceptibility with high contents of some trace elements. These are taxonomically similar soils; however, differences in magnetic and geochemical properties may affect agricultural or environmental usability and subsequent management. This study investigated the pedogenesis of Fe
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-09
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6. Different trace mineral sources and recommendations in the performance and quality of eggs from Dekalb White layers
ABSTRACT This work aimed to evaluate the performance and egg quality of lightweight laying hens supplemented with a high biological value mineral, carbo-amino-phospho-chelates (CAPC), compared with inorganic minerals (sulfates), at different recommended values. A total of 320 Dekalb White hens, between 53 and 77 weeks of age, were distributed in a completely
R. Bras. Zootec.. Publicado em: 30/07/2018
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7. Effect of an Organic Trace Mineral Premix on the Semen Quality, Testicular Morphology and Gene Expression Related to Testosterone Synthesis of Male Broiler Breeders
ABSTRACT In order to investigate the effect of organic trace minerals premix (OTM) on the reproductive performance of breeder roosters, a total of 240 San Huang roosters (23 weeks of age) were randomly divided into two treatments with six replicates of 20 roosters each. The first group (n = 120) was fed a basal diet containing an inorganic trace minerals pre
Rev. Bras. Cienc. Avic.. Publicado em: 2017-09
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8. Dietary Levels of Zinc and Manganese on the Performance of Broilers Between 1 to 42 Days of Age
ABSTRACT The objective of this study was to determine the optimal dietary concentration of zinc and manganese on the performance characteristic and the requirement of these trace minerals derived from organic sources for broilers from 1 to 42 days of age. In experiment 1, zinc was evaluated, whereas manganese was evaluated in experiment 2. In each experiment
Rev. Bras. Cienc. Avic.. Publicado em: 2017-06
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9. Effect of the Inclusion of Organic Copper, Manganese, And Zinc in The Diet of Layers on Mineral Excretion, Egg Production, and Eggshell Quality
ABSTRACT This study aimed at evaluating the replacement of inorganic copper, manganese, and zinc sources by organic sources in the diet of laying hens during the second laying cycle in trace mineral excretion, egg production, and eggshell quality. Two hundred and fifty 100-week-old Dekalb hens were distributed according to a completely randomized design into
Rev. Bras. Cienc. Avic.. Publicado em: 2015-12
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10. Bioavailability of crude protein and lipid from biofloc meals produced in an activated sludge system for white shrimp, Litopenaeus vannamei
The present study compared the bioavailability of crude protein and lipid from biofloc meals generated with an activated sludge system using two water sources: wastewater from shrimp experimental culture (BFL-W) and, artificially, using clean seawater (BFL-C). The sludge system operated by chemical and organic fertilization three times per week. Sampling of
R. Bras. Zootec.. Publicado em: 2015-08
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11. Physicochemical composition, minerals, and pesticide residues in organic grape juices
Demand for organic products is intensified in many countries each year. Following this trend, Brazil produces increasing volumes of organic grape juice. In this way, a survey of organic grape juices made from grapes produced according to this system was carried out where physicochemical composition, minerals, trace elements, and pesticide residues were deter
Food Sci. Technol. Publicado em: 2015-03
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12. Effect of organic sources of minerals on fat-corrected milk yield of dairy cows in confinement
This study evaluated the effects of organic and inorganic sources of minerals in diets for mid-lactation dairy cows on milk yield and composition, intake and total apparent digestibility of dry matter and nutrients, blood parameters, microbial protein synthesis, and energy and protein balances. Twenty Holstein cows averaging 146.83±67.34 days in milk and we
R. Bras. Zootec.. Publicado em: 2015-03