The influences of cage design features, including feeder design and space, cage depth, cage area, stocking density, and the placement of resources, on production parameters of White Leghorns have not been fully assessed under commercial conditions. Assessing all these variables in a traditional experimental study would be difficult. An epidemiological approach, using variability in cage design ...

Thirty-four permitted earthen waste storage structures (EWSS) were investigated to characterize their hydrogeologic setting using digital soils data, digital elevation data, geologic maps, and oblique aerial photographs. Nearly 18 percent of the sites were constructed above alluvial aquifers and on flood plains. More than half of the area within 3.2 km of most sites had soils with a vertical pe...

A significant challenge facing the world today is the expected 34% increase in the human population by 2050, which will require 70% more food from existing natural and land resources (FAO, 2009). Thus, the efficiency of natural resource use must be improved to meet the food security goals for a growing population while protecting the environment (FAO, 2009). Due to their ability to utilize cell...

Water quality in the United States is threatened by contamination with nutrients, primarily nitrogen (N) and phosphorus (P). Animal manure can be a valuable resource for farmers, providing nutrients, improving soil structure, and increasing vegetative cover to reduce erosion potential. At the same time, application of manure nutrients in excess of crop requirements can result in environmental c...

During the past several years RSS-based content syndication has become a standard technique for efficiently and timely disseminating information on the web. From a data processing perspective RSS feeds are standard XML resources which are periodically refreshed by feed aggregators for generating continuous streams of items. In this article, we study the problem of information loss in the contex...

An abundance of agricultural by-products have been used to feed dairy and beef cattle in Taiwan, in order to reduce the cost of livestock production. Most farmers are not concerned about the nutrient value of agricultural by-products. They need to be educated on how to utilize by-products properly. Research to improve techniques of preservation and the efficiency of utilization of agricultural ...

Zoophytophagous insects can substitute animals for plant resources when prey is scarce. Many arthropods feed on conspecifics to survive in these conditions. An individual's tendency for cannibalism may depend on its genotype along with its diet specialization, in interaction with the availability of alternative food resources. We compared two isogroup lines of the zoophytophagous mullein bug, e...

Limits in resource availability are driving a change in current societal production systems, changing the focus from residues treatment, such as wastewater treatment, toward resource recovery. Biotechnological processes offer an economic and versatile way to concentrate and transform resources from waste/wastewater into valuable products, which is a prerequisite for the technological developmen...

Resource-saving processing technologies, in a broad sense, involve the production and sale of food feed products with minimal costs based on rational use all biological resources. Analyzing literary sources, it was found that only 20% valuable secondary raw materials wastes meat industry are used as for feed, medical, technical products. Bone, which is also very material wide range products, pr...

Vampire bats belong to the Desmodontidae family. Three species live in tropical and sub-tropical America. The most important one is Desmodus rotundus a medium size bat (Figure 1). These bats feed on blood of vertebrates and are very adapted to this diet. They take nearly 15ml of blood per meal. They live in colonies in humid caves or in splits of trees. In the colony, they show strong social li...