58 research outputs found
Metabolizability of Dried Distillers Grains Plus Solubles in Finishing Cattle Diets
The feeding value of dried distillers grains plus solubles (DDGS) is a combination of its contributions to protein nutrition as well as caloric intake of cattle. When DDGS is included in diets at levels where dietary CP has been met, the feeding value would primarily be a function of caloric density. A replicated 4 x 4 metabolism study was conducted to measure the caloric value of DDGS at high inclusion levels. Diets were formulated to contain 0, 12, 24, or 36% DDGS. These finishing diets were fed to yearling steers during a 21 d adaptation prior to total fecal and urine outputs collection for 5 d. Increasing dietary DDGS caused increased (P \u3c 0.01) energy density of diets. Organic matter digestibility was not affected (P \u3e 0.15), but NDF digestibility improved (P \u3c 0.01). Apparent N digestibility increased (P \u3c 0.01) with no additional N retention (P \u3e 0.15). Apparent DE increased (P \u3c 0.01) with each incremental increase in DDGS, but metabolizable energy (ME) plateaued at 12% DDGS. The relationship of urine energy: urine N was altered (P \u3c 0.01) by increasing dietary DDGS level. Once dietary CP requirements were met, DDGS had a ME value similar to the corn and SBM mixture it replaced
Magnetoluminescence
Pulsar Wind Nebulae, Blazars, Gamma Ray Bursts and Magnetars all contain
regions where the electromagnetic energy density greatly exceeds the plasma
energy density. These sources exhibit dramatic flaring activity where the
electromagnetic energy distributed over large volumes, appears to be converted
efficiently into high energy particles and gamma-rays. We call this general
process magnetoluminescence. Global requirements on the underlying, extreme
particle acceleration processes are described and the likely importance of
relativistic beaming in enhancing the observed radiation from a flare is
emphasized. Recent research on fluid descriptions of unstable electromagnetic
configurations are summarized and progress on the associated kinetic
simulations that are needed to account for the acceleration and radiation is
discussed. Future observational, simulation and experimental opportunities are
briefly summarized.Comment: To appear in "Jets and Winds in Pulsar Wind Nebulae, Gamma-ray Bursts
and Blazars: Physics of Extreme Energy Release" of the Space Science Reviews
serie
Pulsar-wind nebulae and magnetar outflows: observations at radio, X-ray, and gamma-ray wavelengths
We review observations of several classes of neutron-star-powered outflows:
pulsar-wind nebulae (PWNe) inside shell supernova remnants (SNRs), PWNe
interacting directly with interstellar medium (ISM), and magnetar-powered
outflows. We describe radio, X-ray, and gamma-ray observations of PWNe,
focusing first on integrated spectral-energy distributions (SEDs) and global
spectral properties. High-resolution X-ray imaging of PWNe shows a bewildering
array of morphologies, with jets, trails, and other structures. Several of the
23 so far identified magnetars show evidence for continuous or sporadic
emission of material, sometimes associated with giant flares, and a few
possible "magnetar-wind nebulae" have been recently identified.Comment: 61 pages, 44 figures (reduced in quality for size reasons). Published
in Space Science Reviews, "Jets and Winds in Pulsar Wind Nebulae, Gamma-ray
Bursts and Blazars: Physics of Extreme Energy Release
Effect of energetic cost to maintain the trap for Myrmeleon brasiliensis (Neuroptera, Myrmeleontidae) in its development and adult size
Animal performance and carcass characteristics of Nellore young bulls fed coated or uncoated urea slaughtered at different weights
Lisina em rações para suínos machos castrados selecionados para deposição de carne magra na carcaça dos 110 aos 125 kg
Composição tecidual e química dos cortes comerciais da carcaça de cordeiros Santa Inês terminados em pastagem nativa com suplementação
Qualidade da carne de novilhos terminados em confinamento e abatidos aos 16 ou 26 meses de idade
Muscularity and adiposity of carcass of Santa Inês lambs: effects of different levels of replacement of ground corn by forage cactus meal in finishing ration
Lisina em rações para suínos machos castrados selecionados para deposição de carne magra na carcaça dos 95 aos 110 kg
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