an experiment was conducted using 640 day-old sexed commercial broiler chicks (ross 308 strain) from 10 to 49 days of age. the experimental design was a completely randomized factorial one. the experimental units (pens) contained 20 chicks each and were allotted at random to 4 dietary treatments × two sexes with 4 replicates per treatment. four dietary treatments were formulated based on corn a...

For this study two sediment cores from the Peruvian shelf covering the time period between the Little Ice Age (LIA) and present were examined for changes in productivity (biogenic opal concentrations (bSi)), nutrient utilisation (stable isotope compositions of silicon (δSiopal) and nitrogen (δNsed)), as well as in ocean circulation and material transport (authigenic and detrital radiogenic neod...

The nutrient contents of a widely-consumed leafy vegetable produce – Telfairia occidentalis using poultry manure (PM) and mineral fertilizer (Nitrogen, phosphorus and potassium-NPK) application were evaluated for comparison. PM at four levels (0, 5, 10 and 15 tonnes) and a standard rate of 90kg NPK per hectare was applied. Leaves were harvested for immediate analyses at 15 weeks after planting ...

The study was conducted to determine the effects of probiotics (Bacillus subtilis endospore and Clostridium butyricum endospore complex) supplementation and different energy and nutrient densities on growth performance, nutrient digestibility, and meat quality in growing-finishing pigs. A total of 96 pigs with initial BW of 47.50 ± 1.14 kg were used in a 10-wk experiment. Pigs were randomly all...

The effects of nutrient enrichment (i.e., application of sewage sludge and fertilizer) on a 6-yearold-field community were investigated. Vegetation was harvested in eight 0.1-ha plots comprising three treatments. Three plots were treated five times annually (May-September) with sludge; three plots were treated with an equivalent nutrient subsidy of urea-phosphate fertilizer; and two plots were ...

Dissolved inorganic N (DIN) and soluble reactive P (SRP) have been used by some to indicate the trophic status of waters, and concentration ratios (DIN:SRP) to indicate nutrient deficiency. The utility of such measurements should be questioned, particularly based on well-known problems associated with determination of the concentration of SRP, which is commonly assumed to represent PO4. Another...

Some wild Ganoderma lucidum were found growing on logs of dead wood and tree stumps at different location of the Nasarawa State College of Agriculture, Lafia and the Faculty of Agriculture, Lafia Campus, during the wet rainy season. The matured fruiting bodies seen as red open caps were removed for proximate, mineral and anti-nutrient evaluation. The result showed that the fruiting bodies conta...

In order to make clear the recent status and trend of wheat (Triticum aestivum L.) production in China, datasets from multiple field experiments and published literature were collected to study the agronomic characteristics related to grain yield, fertilizer application and nutrient use efficiency from the year 2000 to 2011. The results showed that the mean grain yield of wheat in 2000-2011 was...

Geobacillus stearothermophilus is a gram-positive, thermophilic bacterium, spores of which are very heat resistant. Raman spectroscopy and differential interference contrast microscopy were used to monitor the kinetics of germination of individual spores of G. stearothermophilus at different temperatures, and major conclusions from this work were as follows. 1) The CaDPA level of individual G. ...

BACKGROUND Combinations of foods that provide suitable levels of nutrients and energy are required for optimum health. Currently, however, it is difficult to define numerically what are 'suitable levels'. OBJECTIVE To develop new metrics based on energy considerations-the Nutrient Balance Concept (NBC)-for assessing overall nutrition quality when combining foods and meals. METHOD The NBC wa...