Carbon and nitrogen cycles in grassland, annual cropping and integrated crop-livestock (ICL) systems control soil quality and regulate greenhouse gas emissions. The aim of this study was to review the knowledge on driving factors controlling soil organic carbon (OC) accumulation…

2010

Information about the inheritance of threshold traits is scarce, especially in plants. We examined the genetic control of kernel row number in maize (Zea mays). Knowledge of this inheritance is especially important because it is a primary component of grain…

The cow-calf beef production sector in Brazil has a wide variety of operating systems. This suggests the identification and the characterization of homogeneous regions of production, with consequent implementation of actions to achieve its sustainability. In this paper we attempted…

Mycoplasma synoviae is a Gram positive bacteria lacking of cell wall that affects chickens and turkeys causing infection in the upper respiratory tract and in some cases arthritis, with economical impact to broiler breeders. Treatment and prevention of avian synovitis…

2009, Autores: Jorge Blajos, Patrick Lavelle, Dalva M. da Mota, Lucia Pitalluga, Sergio Salles Filho, Jorge Irán Vásquez.

Several initiatives, including research and development, increasing stakeholders' awareness and application of legislation and recommendation, have been carried out inLatinAmericatopromoteanimalwelfareand meat quality. Most activities focused on the impact of pre-slaughter conditions (facilities, equipment and handling procedures) onanimalwelfareand meat quality. The…

Knowledge on apparent digestibility coefficients (ADC) is necessary to maximize the feed efficiency, thus lessening dietary nutrient and energy losses. This study tasks the determination of apparent digestibility of selected feedstuff to striped surubim Pseudoplatystoma reticulatum, a carnivorous, South American…

The demand for agricultural products has been increasing in all countries in the last decades. Together with the decrease in natural resources and the possible impacts to agriculture caused by climatic changes, this aspect has aroused concerns in terms of…

http://www.igi-global.com/chapter/governance-sociotechnical-systems-knowledge-society/66970