En el presente artículo se considera el potencial de biomasa que pueden generar actividades como la agricultura y ganadería, exceptuando el potencial forestal ya que Piura no presenta una significativa producción en este sector. Se han utilizado los datos más recientes proporcionados por el Instituto Nacional de Estadística e Informática y por el Sistema Integrado de Estadísticas Agrarias del Ministerio de Agricultura y Riego. Esto permitió identificar las áreas con mayor producción de biomasa (apta para procesos de digestión anaerobia) del departamento de Piura y realizar un cálculo de su potencial energético, que en las condiciones que se especifican en esta investigación, resultan en alrededor de 6800 m3 CH4/día o 248.2 GJ/día, pudiendo convertirse en unos 16.5 MWh al día de energía eléctrica.

The local breed hens preserves an important genetic pool related with rusticity, diseases resistance and adaptation to the environment these characteristics contributes to make this poultry breed in a protein source for people of rural an urban sectores and instead few research are carried out in this breed for improve its production.The objective of this research was to characterize the hematological and biochemical serie profile of Gallus gallus domesticus in relationship with genetic and breeding system. For this purpose, 20 broilers Cobb-500 forty two days old, 2 kg weight, bred in confinement system and 20 local breed hens 8-10 months old, 2 kg weight., bred in extensive system were used. Entire blood and serum samples from the 40 specimens were collected. Hematocrit was determined by microhematocrit in a Hettich EBA 20 centrifuge, Hb; AST, ALT, total protein, albumin, total cholest...

In the northern coastal and jungle areas of Peru, cocoa beans are dried using artisan methods, such as direct exposure to sunlight. This traditional process is time intensive, leading to a reduction in productivity and, therefore, delays in delivery times. The present study was intended to numerically characterise the thermal behaviour of three configurations of solar air heating collectors in order to determine which demonstrated the best thermal performance under several controlled operating conditions. For this purpose, a computational fluid dynamics model was developed to describe the simultaneous convective and radiative heat transfer phenomena under several operation conditions. The constructed computational fluid dynamics model was firstly validated through comparison with the data measurements of a one-step solar air heating collector. We then simulated two further three-step sol...

This work was supported by grants from Consejo Nacional de Ciencia y Tecnología from Perú (contract 280-2010-CONCYTEC-OAJ), and Universi-dad Nacional de la Amazonía Peruana (RR number 2010-UNAP). We also thank to Dr. Jorge L. Marapara for his help with the infrastructure and equipment of Unidad Especializada de Biotecnología and Instituto Nacional de Innovación Agraria (INIA)–San Roque-Iquitos for access to the germ-plasm collection of Myrciaria dubia. We also thank Alexander Cerdeira for his technical assistance. The authors are very grateful to Antje Trukenmüller for critical reading of the article.