Chromic Oxide
Mostrando 1-12 de 33 artigos, teses e dissertações.
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1. Digestibilidade aparente do farelo de palmiste em tambaqui (Colossoma macropomum)
RESUMO O objetivo deste trabalho foi determinar a digestibilidade do farelo de palmiste (Elaeis guineensis) para o tambaqui (Colossoma macropomum), em duas classes de peso: 1 (210 alevinos de 4,45±1,18g) e 2 (54 juvenis de 115,91±4,01g). Os coeficientes de digestibilidade aparente (CDA) da matéria seca, proteína bruta e energia bruta do farelo de palmist
Arq. Bras. Med. Vet. Zootec.. Publicado em: 28/10/2019
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2. Interference film grown on stainless steel by pulsed current process using chromium free vanadate solution
ABSTRACT Deposition of interference film is an alternative way for the formation of colored protective layers on the surface of stainless steels for decorative applications. The process involves growth of a chromium oxide film by electrochemical methods using in general sulphochromic solutions. However, it is well known that chromic acid contains Cr(VI), whi
Matéria (Rio J.). Publicado em: 05/03/2018
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3. 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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4. Ingestive behavior, performance and forage intake by beef heifers on tropical pasture systems
The experiment was carried out to evaluate forage intake, performance and ingestive behavior of beef heifers. Productive, structural and chemical characteristics of the pasture were also evaluated. The experimental design was completely randomized in a 3 × 2 factorial arrangement, with three pasture systems (Alexandergrass [Urochloa plantaginea Link.] with
R. Bras. Zootec.. Publicado em: 2013-08
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5. Aluminothermic reduction of Cr2O3 contained in the ash of thermally treated leather waste
In this study the viability of utilising ashes with high chromium oxide content, obtained by thermal treatment of footwear leather waste, in the production of low-carbon ferrochromium alloy (Fe-Cr-LC) by aluminothermic reduction was investigated. The following key-factors were selected for process modelling: the quantity of aluminium (Al) employed in the rea
Braz. J. Chem. Eng.. Publicado em: 2013-03
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6. EFEITO DE FREQUÊNCIAS DE SUPLEMENTAÇÃO NO COMPORTAMENTO INGESTIVO, PADRÃO DE DESLOCAMENTO E INGESTÃO DE MATÉRIA SECA POR NOVILHAS DE CORTE / The effects of several supplementation frequencies on ingestive behavior, displacement patterns and dry matter intake by beef heifers
The dry matter intake, ingestive behavior and displacement patterns were evaluated on beef heifers exclusively on pasture or receiving oats grain daily (frequent) or from Monday to Friday (infrequent) in "Vegetative" and "Reproductive" phenological stages of Alexandergrass (Urochloa plantaginea Link.). The grazing method was continuous with a variable number
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/02/2012
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7. 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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8. Apparent and true digestibility of protein and amino acid in feedstuffs used in Nile Tilapia feed as determined by the technique of dissection
The objective of this study was to determine the coefficients of apparent and true digestibility of protein and amino acids of five feedstuffs (corn, wheat bran, soybean meal, corn gluten meal and fish meal) in 900 sex-reversed Nile tilapia (Oreochromis niloticus) of the Thai strain during the growth phase, with an initial weight of 315±8.45 g. A total of 7
Revista Brasileira de Zootecnia. Publicado em: 2012-05
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9. Digestibility of agro-industrial byproducts in 200 and 300-g Nile tilapia
The objective of the present study was to evaluate the apparent digestibility coefficients of dry matter (DM), crude protein (CP) and gross energy (GE) of the following agro-industrial byproducts: cassava leaf (Manihot esculenta), mesquite bean (Prosopis juliflora), cotton (Gossypium species), cocoa (Theobroma cacao), soursop (Annona squamata) and African oi
Revista Brasileira de Zootecnia. Publicado em: 2012-02
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10. COMPORTAMENTO INGESTIVO E CONSUMO DE FORRAGEM POR NOVILHAS DE CORTE EM SISTEMAS FORRAGEIROS DE CICLO ESTIVAL / INGESTIVE BEHAVIOUR AND FORAGE INTAKE BY BEEF HEIFERS IN TROPICAL PASTURE SYSTEMS
ABSTRACT There were evaluated forage intake, ingestive behavior, productive, structural and chemical characteristics of pasture and performance of beef heifers in coastcross (Cynodon dactylon (L.) Pers) and alexandergrass(Urochloa plantaginea Link.) receiving protein supplement or not. The grazing method utilized was continuous with variable number of animal
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/02/2011
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11. Voluntary intake of dry matter and performance of Nellore cows and their Nellore and crossbred Simental × Nellore calves
This study aimed to investigate the influence of calf genetic group on the performance of Nellore lactating cows. The variables studied included milk ingestion, pasture intake, calf weight gain and cow body weight. A total of 13 Nellore calves and 8 crossbred Simental × Nellore calves were used, all born from Nellore mothers. During the experimental period
Revista Brasileira de Zootecnia. Publicado em: 2011-11
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12. Silagem de soja e de milho na alimentação de bovinos de corte / Soybean and corn silage in beef cattle feeding
Two experiments were carried with out to evaluate the intake and total nutrient digestibilities, pH and ruminal ammonia concentration (Experiment 1) and the productive performance of beef cattle (Experiment 2) fed diets containing different proportions of corn (CS) and soybean silage (SS). The experimental diets consisted: 1- 60% CS and 40% concentrate (cont
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/02/2010