Urea Protected
Mostrando 1-12 de 33 artigos, teses e dissertações.
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1. Panicum maximum cv. Aries Establishment under Weed Interference with Levels of Light Interception and Nitrogen Fertilization
RESUMO: O objetivo deste trabalho foi avaliar o estabelecimento da pastagem de Panicum maximum cv. Áries em área de proteção ambiental sob influência de níveis variados de interação interespecífica exercidos pela comunidade de plantas daninhas. O experimento foi executado após semeadura da forrageira, delineado em blocos casualizados, no esquema fa
Planta daninha. Publicado em: 18/02/2019
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2. Perconditioning combined with postconditioning on kidney ischemia and reperfusion
Abstract Purpose: To evaluate if combination of perconditioning and postconditioning provides improved renal protection compared to perconditioning alone in a model of renal reperfusion injury. Methods: Thirty rats were assigned into 6 groups: normality; sham; ischemia and reperfusion; postconditioning; perconditioning; perconditioning + postconditioning.
Acta Cir. Bras.. Publicado em: 2017-08
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3. Effect of Otostegia persica extract on ischemia/reperfusion induced renal damage in diabetic rats. A biochemical study
ABSTRACT PURPOSE: To evaluate the effect of Otostegia persica (O. persica) extract on renal damage induced by ischemia/reperfusion (I/R) in diabetic rats. METHODS: Forty-eight rats were subjected to right nephrectomy; then, they were allocated into six groups: Sham; Diabetic sham; I/R; Diabetic I/R; I/R+O. persica; Diabetic I/R+O. persica. Diabetes was ind
Acta Cir. Bras.. Publicado em: 2016-06
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4. Uso de fertilizante nitrogenado de liberação lenta na cultura do milho em sistema plantio direto. / Use of slow-release nitrogen fertilizer in corn under no-tillage
A adoção das boas práticas do uso de fertilizantes tem contribuído para a redução nas perdas de nutrientes, e a utilização de fontes de nitrogênio protegidas parece ser uma alternativa interessante. Sendo assim, o objetivo deste trabalho foi realizar uma avaliação técnica e econômica dos efeitos de diferentes doses de nitrogênio, utilizando ure
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/06/2011
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5. Uréia de liberação lenta em dietas para vacas leiteiras mestiças em pasto ou confinadas / Slow release urea in crossbred dairy cows diets on pasture or confinement.
Foram conduzidos dois estudos com vacas mestiças Holandês x Zebu na unidade experimental de Cachoeirinha, DZO/UFV, com o objetivo de avaliar a utilização de fonte de uréia de liberação lenta (ULL). No Experimento 1, foram utilizadas oito vacas adultas em lactação, na terceira e quinta lactações e pesando 448 74 kg no início do período experiment
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/07/2010
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6. SUPLEMENTAÇÃO COM SAIS DE CÁLCIO DE ÁCIDOS GRAXOS PARA VACAS DE CORTE MANTIDAS EM PASTAGEM NATURAL DURANTE O PERÍODO PRÉ E/OU PÓS-PARTO / SUPPLEMENTATION WITH CALCIUM SALTS OF FATTY ACIDS TO BEEF COWS MAINTENEID ON NATIVE PASTURE DURING TO PERIOD PRE AND/OUR POSTPARTUM
The objective of this study was to evaluate whether supplementation with calcium salts of fatty acids (CSFA) during to pre and/our postpartum affects production and composition of milk, metabolites blood, productive and reproductive performance from beef cows of different genetic groups maintained on native pasture, and performance of this calves. Were used
Publicado em: 2010
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7. Pressure-assisted cold denaturation of hen egg white lysozyme: the influence of co-solvents probed by hydrogen exchange nuclear magnetic resonance
COSY proton nuclear magnetic resonance was used to measure the exchange rates of amide protons of hen egg white lysozyme (HEWL) in the pressure-assisted cold-denatured state and in the heat-denatured state. After dissolving lysozyme in deuterium oxide buffer, labile protons exchange for deuterons in such a way that exposed protons are substituted rapidly, wh
Brazilian Journal of Medical and Biological Research. Publicado em: 2005-08
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8. Silage of sugar cane with different additives at two cutting ages / Silagem de cana-de-aÃÃcar em duas idades de corte com diferentes aditivos
The bromatological characteristics and in situ degradability of sugar cane (Sacharum spp.) with different additives at two cutting ages before and after ensiling process were evaluated. The treatments were arranged in a completely randomized design with three replicates. The additives utilized were 1% of urea, 8% of ground ears with husks, 0.5% of mineral an
Publicado em: 2004
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9. Performance and carcass characteristics of steers fed diets with different fat sources. / Desempenho e características da carcaça de novilhos alimentados com dietas contendo diferentes fontes de gordura.
Several fat sources have been utilized in feedlot diets to improve animal performance. This study carried out at the Beef Cattle Sector of the FZEA, USP, evaluated the performance and carcass and meat characteristics of 36 crossbred steers (approximately ¾ Bos taurus taurus, offspring of crossbred Simental cow x Brangus sire), with 14 months old on the aver
Publicado em: 2003
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10. Dual Functions of Streptococcus salivarius Urease
A urease-deficient derivative of Streptococcus salivarius 57.I was constructed by allelic exchange at the ureC locus. The wild-type strain was protected against acid killing through hydrolysis of physiologically relevant concentrations of urea, whereas the mutant was not. Also, S. salivarius could use urea as a source of nitrogen for growth exclusively throu
American Society for Microbiology.
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11. Genetic and Physiologic Characterization of Urease of Actinomyces naeslundii
Ammonia production from urea by ureolytic oral bacteria is believed to have a significant impact on oral health and the ecological balance of oral microbial populations. In this study we cloned and characterized the urease gene cluster of Actinomyces naeslundii, which is one of the pioneer organisms in the oral cavity and a significant constituent of supragi
American Society for Microbiology.
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12. Human liver-type arginase gene: structure of the gene and analysis of the promoter region.
The gene for human liver-type arginase (EC 3.5.3.1), a urea cycle enzyme, was cloned and the structure was determined. This gene is 11.5 kilobases long and is split into 8 exons. The cap site was determined by nuclease S1 mapping and primer extension. A "TATA box"-like sequence is located 28 bases upstream from the cap site, and a sequence similar to the bin