Mastitis, a disease that affects dairy herds worldwide and causes huge economic losses to the Brazilian dairy sector has the Staphylococcus aureus bacteria as one of the major etiologic agents. S. aureus is an infectious pathogen, which can be isolated from clinical infections, but is most often associated with chronic and subclinical mastitis, with an augmentation of the somatic cell count (SCC) in milk. This pathogen has several virulence factors, which are important in the bac

Status: Completed     Start date: Sun Jun 01 00:00:00 GMT-03:00 2014

Productivity and forage quality of elephantgrass (Pennisetum purpureum) are directly affected by weed interference. The difficulty of control of these species is one of the main barriers to production and use of the forage as feedstock, as well as to the production of biomass for energy use. Despite the great progress in agro-ecological weed control techniques, herbicides are still indispensable. Thus, the rational use practices of these products should be improved in order to produce quality fo

Status: Completed     Start date: Fri Aug 01 00:00:00 GMT-03:00 2014

The main environmental problems associated with the waste produced in intensive pig farming are its high organic load, high amount of nutrients, the presence of some metallic species and of micro-organisms, some of which are known pathogenic agents. In general, the waste treatment systems in pig farms still lack the ability to reduce or eliminate pathogenic agents from the waste produced, a fact which makes it difficult to reuse the water in the very facility or even in agriculture. Seasonal flu

Status: Completed     Start date: Thu Jan 01 00:00:00 GMT-03:00 2009

According to data from the IPCC (2007), agriculture is one of the economic sectors accountingfor the most greenhouse gas emissions. Conventional nitrogen-based fertilizers are mostcommonly used in agriculture, and nitrogen is lost very quickly as their componentsdecompose. The generally low efficacy of nitrogen-based fertilizers not only leads to technicaland economic losses, but also contributes to higher concentrations of greenhouse gases in theatmosphere by releasing nitrous oxide (N 2 O), a

Status: Completed     Start date: Thu Dec 01 00:00:00 GMT-03:00 2016

The changes in climate behavior will probably bring changes to the hydrological cycle. As a result, these variations will probably affect crop development, crop production, and water consumption.
Therefore, the project’s proposal is to determine the water requirement for irrigation in the current weather and in different future climate scenarios for the cropping of pineapple and coconut in the North, and orange, in the Northwest of the state of Rio de Janeiro, Brazil, since those are the cro ...

Status: Completed     Start date: Tue Jan 01 00:00:00 GMT-03:00 2013