Adequate Nitrogen Level
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Metabolizable Energy Levels for Meat-Type Quails at Starter Phase
ABSTRACT This experiment was conducted to evaluate the effects of dietary nitrogen-corrected apparent metabolizable energy (AMEn) levels on meat-type quail performance and carcass traits from 1 to 14d of age. A total of 1120 not sexed meat-type quails were randomly distributed to seven treatments, with eight replicates with 20 quails each. A basal corn and s
Braz. J. Poult. Sci.. Publicado em: 2018-04
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2. Metabolizable energy values of diets supplemented with xylanase determined with laying hens
The objective of this study was to evaluate the effect of the supplementation of xylanase in diets with reduced energy level on the apparent metabolizable energy corrected for nitrogen, determined with laying hens at 14, 36, 60 and 80 weeks of age. Four digestibility trials were conducted, using 80 Hy-line W36 laying hens aged 14, 36, 60 and 80 weeks of age.
R. Bras. Zootec.. Publicado em: 2012-12
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3. Leaf relative chlorophyll content as an indicator parameter to predict nitrogen fertilization in maize / Teor relativo de clorofila na folha como parâmetro indicativo para predição da necessidade de adubação nitrogenada em milho
O medidor portátil de clorofila SPAD 502, que permite leituras instantâneas da intensidade da cor verde da folha (valor correspondente ao teor de clorofila) sem destruí-la, surgiu como uma alternativa para avaliar o nível de N na planta. Com o objetivo de determinar os valores adequados da leitura SPAD, em quatro estádios de desenvolvimento da planta de
Publicado em: 2010
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4. Presença e atividade da proteína quiescina sulfidril oxidase em sorofetal e neonatal
Production of reactive oxygen and nitrogen species during embryonic and fetal development has been demonstrated in the last few years. Among these species, superoxide radical anion, hydrogen peroxide and nitric oxide radical, enzymatically produced, have been considered. Their tightly controlled production provides the adequate concentrations necessary for t
Publicado em: 2005
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5. AnÃlise da diversidade genÃtica e patogÃmica de Mycosphaerella fijiensis e Mycosphaerelle musicola no Brasil
Black and yellow Sigatoka diseases, caused by the fungi Mycosphaerella fijiensis and M. musicola, respectively, are responsible for important losses in banana production all over the world. The former disease is distributed over the whole Brazilian territory, with the exception of the Northeast region and the sates of Rio de Janeiro, EspÃrito Santo, GoiÃs
Publicado em: 2005
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6. Urea kinetics in neonates receiving total parenteral nutrition.
Urea kinetics were measured on 10 occasions in eight neonates who had not received an oral intake from birth and were maintained on total parenteral nutrition. After a prime/intermittent oral dose of 15N15N-urea over 14 hours urine was collected every three to four hours, urea isolated, and kinetics determined from the plateau level of enrichment in urea, me
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7. Straw and Xylan Utilization by Pure Cultures of Nitrogen-Fixing Azospirillum spp
Azospirillum spp. were shown to utilize both straw and xylan, a major component of straw, for growth with an adequate combined N supply and also under N-limiting conditions. For most strains examined, a semisolid agar medium was satisfactory, but several strains appeared to be capable of slow metabolism of the agar. Subsequently, experiments were done with a
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8. Physiological Characteristics of Cowpea Rhizobia: Evaluation of Symbiotic Efficiency in Vigna unguiculata†
One fast-growing and three slow-growing strains of Rhizobium (isolated from cowpeas) were evaluated for symbiotic performance on Vigna unguiculata (L.) Walp. cultivar California no. 5 blackeyes. Plants inoculated with slow-growing strains 176A22, 176A30, and 176A32 developed a maximum acetylene reduction activity of 24.6, 27.0, and 32 μmol of ethylene forme
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9. Production of Glucose Isomerase by Streptomyces flavogriseus†
A microorganism that produces glucose isomerase was isolated from soil and identified as a strain of Streptomyces flavogriseus. The organism produced a large quantity of glucose isomerase when grown on straw hemicellulose, xylan, xylose, and H2SO4 hydrolysate of ryegrass straw. The organism produced glucose isomerase both intra- and extra-cellularly. The hig
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10. Faster Rubisco Is the Key to Superior Nitrogen-Use Efficiency in NADP-Malic Enzyme Relative to NAD-Malic Enzyme C4 Grasses1
In 27 C4 grasses grown under adequate or deficient nitrogen (N) supplies, N-use efficiency at the photosynthetic (assimilation rate per unit leaf N) and whole-plant (dry mass per total leaf N) level was greater in NADP-malic enzyme (ME) than NAD-ME species. This was due to lower N content in NADP-ME than NAD-ME leaves because neither assimilation rates nor p
American Society of Plant Biologists.
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11. Influence of Storage at Freezing and Subsequent Refrigeration Temperatures on β-Galactosidase Activity of Lactobacillus acidophilus†
The ability of three strains of Lactobacillus acidophilus to survive and retain β-galactosidase activity during storage in liquid nitrogen at −196°C and during subsequent storage in milk at 5°C was tested. The level of β-galactosidase activity varied among the three strains (0.048 to 0.177 U/107 organisms). Freezing and storage at −196°C had much le