4,581 research outputs found
Net Energy - A New Measure for Evaluating Feeds and Rations for Beef Cattle
Most of us are still using the total digestible nutrient (TDN) system for formulating ruminant rations, evaluating feedstuffs and estimating animal response to different rations. The TDN system has served a useful purpose and will continue to be useful. However, it has definite limitations and drawbacks
Flow properties of suspensions rich in solids
Mathematical evaluation of flow properties of fluids carrying high concentrations of solids in suspension relates suspension viscosity to physical properties of the solids and liquids, and provides a means for predicting flow behavior. A technique for calculating a suspensions flow rates is applicable to the design of pipelines
Methods of Treating and Preventing Tall Fescue Toxicosis by the Administration of Thiamin
A method of treating and effectively alleviating the symptoms of tall fescue toxicosis in domestic farm animals includes the administering of thiamin at therapeutic levels into the feed for the animals. A method of preventing tall fescue toxicosis in animals grazing or feeding on endophyte infected tall fescue is also provided
Holding Highly Finished Steers for Delayed Marketing
Don\u27t do it - but if you must, here\u27s how, is the advice of this group of animal scientists. Holding highly finished animals beyond normal marketing time is not reccomended. But if you must hold them, it\u27s best to maintain a full feeding program, results of a small-scale study show
Integrating palliative care with intensive care for critically ill patients with lung cancer
With newer information indicating more favorable outcomes of intensive care therapy for lung cancer patients, intensivists increasingly are willing to initiate an aggressive trial of this therapy. Concerns remain, however, that the experience of the intensive care unit for patients with lung cancer and their families often may be distressing. Regardless of prognosis, all patients with critical illness should receive high-quality palliative care, including symptom control, communication about appropriate care goals, and support for both patient and family throughout the illness trajectory. In this article, we suggest strategies for integrating palliative care with intensive care for critically ill lung cancer patients. We address assessment and management of symptoms, knowledge and skill needed for effective communication, and interdisciplinary collaboration for patient and family support. We review the role of expert consultants in providing palliative care in the intensive care unit, while highlighting the responsibility of all critical care clinicians to address basic palliative care needs of patients and their families
Spatial methods for event reconstruction in CLEAN
In CLEAN (Cryogenic Low Energy Astrophysics with Noble gases), a proposed
neutrino and dark matter detector, background discrimination is possible if one
can determine the location of an ionizing radiation event with high accuracy.
We simulate ionizing radiation events that produce multiple scintillation
photons within a spherical detection volume filled with liquid neon. We
estimate the radial location of a particular ionizing radiation event based on
the observed count data corresponding to that event. The count data are
collected by detectors mounted at the spherical boundary of the detection
volume. We neglect absorption, but account for Rayleigh scattering. To account
for wavelength-shifting of the scintillation light, we assume that photons are
absorbed and re-emitted at the detectors. Here, we develop spatial Maximum
Likelihood methods for event reconstruction, and study their performance in
computer simulation experiments. We also study a method based on the centroid
of the observed count data. We calibrate our estimates based on training data
Performance of Tall Fescue Varieties
The objective of the tall fescue breeding program is the development of varieties characterized by superior nutritive value (including reduced contents of perloline and loline alkaloids and the fungal endophyte, Epichloe typhina), palatability, disease resistance, and adaptation through the utilization of intergeneric and interspecific hybrid derivatives of ryegrass and tall fescue species. Varieties previously released from the breeding program were, Kentucky 31, Kenwell, and Kenhy. Johnstone tall fescue, developed cooperatively by the Kentucky Agricultural Experiment Station and USDA-ARS, was released March 1, 1982, as,a new variety. Johnstone is characterized as having low levels of perloline alkaloid and the fungal endophyte, Epichloe typhina, and improved forage quality during summer. It is expected that seed of Johnstone will be available commercially during 1984 or 1985
Performance of Tall Fescue Varieties [1984]
The objective of the tall fescue breeding program is the development of varieties characterized by superior nutritive value (including reduced contents of perloline and loline alkaloids and the fungal endophyte, Epichloe typhina, (Acremonium coenophialum), palatability, disease resistance, and adaptation through the utilization of intergeneric and interspecific hybrid derivatives of ryegtass and tall fescue species. Varieties previously released from the breeding program were Kentucky 31, Kenwell; and Kenhy. Johnstone tall fescue, developed cooperatively by the Kentucky Agricultural Experiment Station and USDA-ARS, was released March 1, 1982, as a new variety. Johnstone is characterized as having low levels of perloline alkaloid and the fungal endophyte; Acremonium coenophialum, and improved forage quality during summer. It is expected that seed of Johnstone will be available commercially during 1985, and a good supply should be available for spring and summer 1986 planting
Dynamic Simulation of Animal Growth and Reproduction
A rather unique systems analysis approach has been made to simulate the utilization of dry matter by ruminant animals, and the natural breeding and reproduction process within a herd. Physiological factors occurring over time and the time related effects of these factors are simulated
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