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This work was carried out in an Agricultural Cooperative belonging to a Cattle Company of the Granma province, Cuba. Using as research method the summary of statistical data related with the production plan for the spring time, taking like reference the months of April until August of the 2004. In the same one you determines the execution of the production plan, as well as the use of the animal traction and the factors that influenced in their employment. Demonstrating that it is not possible to complete the production plan on the part of the entity, the animal traction is not used appropriately, because it is only used to 21,42 %. inside the factors that more they impacted it was the organizational one, the readiness of the work means. [ABSTRACT FROM AUTHOR]

The aim of this paper is to analyze the quality of the mechanical harvest of rice seeds, carried out by the New Holland L521 rice harvester machines, at the Rice Farm "Los Palacios". Their technological parameters were evaluated depending on the quality of the harvested product, taking into account some aspects such as: the entire, peeled and/or broken grain, the impurity content and total losses. This resulted in values of 5,2-6,4% for peeled and/or broken grain in the five agricultural yields. On the other hand, the impurity content was among 8,3-9,6%, so that both parameters exceed the established limits. This is mainly caused by: the bad regulation of thresh, the work speed and the poor training of operators. These results allow decreasing losses. During the harvest losses decreased from 206kg/ha to 85kg/ha which represents an economic effect of $ 316 202.04 pesos. This also permits to stop investing about 184 793.4 USD on rice for our population feeding. [ABSTRACT FROM AUTHOR]