Printable Version     E-mail this page Educational Resources Outreach Activities National Agricultural Library Archives Publications Manuscripts (TEKTRAN) Software Datasets Freedom of Information Act and Privacy Act Reference Guide   You are here: Products & Services / TEKTRAN The ARS Manuscripts Database Search What is TEKTRAN Browse The Latest Search For: In: All Fields Title Author Abstract    Results: 44 publication requests found in 0.344 seconds. Optimizing the extraction, storage, and analysis of airborne endotoxins While the Limulus amebocyte lysate (LAL) assay is part of most procedures to assess airborne endotoxin exposure, there is no universally agreed upon standard procedure. The purpose of this study was to fill in additional knowledge gaps with respect to the extraction, storage, and analysis of endotox... Fecal phosphorus excretion and characterization from swine fed diets containing a variety of cereal grains To determine the effects of cereal grain phosphorus (P) source on faecal P composition, twenty crossbred barrows, weighing 35.8 plus or minus 3.09 kg, were fed one of five diets with four pigs assigned to each of the diets. The diets contained corn, wheat, high fat-low lignin oat, normal barley or l... Phytate utilization and phosphorus excretion by broiler chickens fed diets containing cereal grains varying in phytate and phytase content Poor digestibility of phytate P by poultry leads to supplementation of poultry diets with inorganic P thereby increasing feed costs and also increasing the excretion of P by the birds. In order to quantify phytate utilization and P excretion by poultry, eighty, 12 day-old, male broiler chicks, weig... THE EFFECT OF LOW-PHYTATE MUTANT-M 995 BARLEY GRAIN ON PHYTATE DEGRADATION AND MINERAL DIGESTION IN SHEEP FED HIGH-GRAIN DIETS. Our objectives for this study were to determine the extent of phytate degradation and mineral digestion in wethers fed high-grain diets consisting of either a normal- or low-phytate barley grain. In two separate experiments, mature Columbia wethers (n = 7) fitted with rumen and duodenal cannulas an... THE NATURE OF PHOSPHORUS IN CALCAREOUS SOILS Calcareous soils (containing free lime) are common in many arid and semi-arid regions of North America and occur as inclusions in more humid regions. Phosphorus (P) is very reactive with lime. Following fertilizer application, P undergoes a series of reactions that gradually reduce its solubility.... NUTRIENT LOSSES FROM MANURE AND FERTILIZER APPLICATIONS AS IMPACTED BY TIME TO FIRST RUNOFF EVENT Degradation of water quality has purportedly occurred due to nutrient losses from fertilizer and manure applications to agricultural lands. The objectives of this study were to determine how the duration between fertilizer or manure application and rainfall can influence soluble phosphorus (P) and ... INFLUENCE OF SOLID DAIRY MANURE AND COMPOST WITH AND WITHOUT ALUM ON SURVIVAL OF INDICATOR BACTERIA IN SOIL AND ON POTATO Bacterial pollution of surface flow and ground water from animal manure applied to soils has been well documented. We measured Escherichia coli, Enterococcus spp and fecal coliform numbers in soil and on fresh potato skins after addition of solid dairy manure and dairy compost with and without alum ... FECAL PHOSPHORUS EXCRETION FROM BROILER CHICKS FED DIETS CONTAINING LOW-PHYTATE BARLEY Low phytic acid grains in poultry diets can reduce P concentrations in feces, but the influence on feces P composition is relatively unknown. We analyzed feces from poultry fed one of four barley based diets. The barley varieties used to generate the diets consisted of wild-type barley (Copeland, ... Interaction of calcium and phytate in broiler diets: 1. Effects on apparent prececal digestibility and retention of phosphorus Phytate phosphorus (P) utilization from soybean meal (SBM) included in broiler diets has been shown to be poor and highly dependent on dietary calcium (Ca) intake. Although low phytate varieties of SBM have been developed, it is not well known how reduced dietary phytate concentrations affect Ca abs... Interaction of calcium and phytate in broiler diets: 2. Effects on total and soluble phosphorus excretion Dietary calcium (Ca) can influence the amount of phytate excreted from broilers and therefore change the solubility of phosphorus (P) in manures. We investigate the effects of dietary Ca and phytate on P excretion in broilers by feeding 12 dietary treatments to broilers from 16 to 20 days of age. T...       Last Modified: 11/24/2009 ARS Home | USDA.gov | Site Map | Policies and Links  FOIA | Accessibility Statement | Privacy Policy | Nondiscrimination Statement | Information Quality | USA.gov | White House