121 research outputs found
Goats in a comfortable and stressed environment consuming saline water: performance, digestibility, nitrogen balance, and urinary mineral concentrations
ABSTRACT The objective was to evaluate the effect of water salinity and environmental temperature on the nutrient consumption, digestibility, nitrogen balance, and mineral excretion of creole goats. Thirty-six males with an average age of 5.0±0.6 months and an average weight of 20.0±2.3kg were housed in metabolic cages. They are distributed in a completely randomized design, with a 2Ă3 type crossover (2 temperatures (T1 = 26±0.6ÂșC and T2 = 32±1.2ÂșC) and three levels of salinity (1.0, 6.0, and 12.0 dS m-1). The temperature influenced (P0.05) of temperatures or water salinity levels; the animals consumed and retained averages of 10.31 and 4.19 g day-1 of nitrogen in the body, respectively. The different water salinity levels influenced (P<0.05) water intake and increased the excretions of potassium and sodium in urine. Total solids levels ranging from 640 to 9,600mg L-1 in water for goats increase water consumption, as does urine potassium and sodium excretion in urine
ComparaçÔes mĂșltiplas bayesianas em modelos normais homocedĂĄsticos e heterocedĂĄsticos
Regular cosmological solutions in low energy effective action from string theories
The possibility of obtaining singularity free cosmological solutions in four
dimensional effective actions motivated by string theory is investigated. In
these effective actions, in addition to the Einstein-Hilbert term, the
dilatonic and the axionic fields are also considered as well as terms coming
from the Ramond-Ramond sector. A radiation fluid is coupled to the field
equations, which appears as a consequence of the Maxwellian terms in the
Ramond-Ramond sector. Singularity free bouncing solutions in which the dilaton
is finite and strictly positive are obtained for models with flat or negative
curvature spatial sections when the dilatonic coupling constant is such that
, which may appear in the so called theory in 12
dimensions. These bouncing phases are smoothly connected to the radiation
dominated expansion phase of the standard cosmological model, and the
asymptotic pasts correspond to very large flat spacetimes.Comment: 10 pages, ReVTeX format, 2 figures, to appear in Phys. Rev. D (2003
Caracterização espacial do ambiente termoacĂșstico e de iluminĂąncia em galpĂŁo comercial para criação de frangos de corte
Efeitos de diferentes nĂveis de cĂĄlcio dietĂ©tico na cinĂ©tica de cĂĄlcio e fĂłsforo em eqĂŒinos
Relação entre a estrutura foliar de feijoeiro e a pré-infecção por Glomerella cingulata f.sp. phaseoli
Measuring progress and projecting attainment on the basis of past trends of the health-related Sustainable Development Goals in 188 countries: an analysis from the Global Burden of Disease Study 2016
The UNâs Sustainable Development Goals (SDGs) are grounded in the global ambition of âleaving no one behindâ. Understanding todayâs gains and gaps for the health-related SDGs is essential for decision makers as they aim to improve the health of populations. As part of the Global Burden of Diseases, Injuries, and Risk Factors Study 2016 (GBD 2016), we measured 37 of the 50 health-related SDG indicators over the period 1990â2016 for 188 countries, and then on the basis of these past trends, we projected indicators to 2030
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