Avances

3-21

Authors: Álvaro Celestino Alonso-Vazquez, Erick Daniel Rivero-Cruz, Mileisys Benítez-Odio

To evaluate behavior of growth-development up 365 days of age in Siboney of Cuba female calves of employment of dehydrated sugar cane flour based integral diet rates of dry milk replacement inclusion (0, 5 and 10%) until weaning. Continued checking alive weight and average daily gain of 32 calves that it had participated in investigation protocol, in unit 246, at "Loma de Candelaria", of Cattle Genetics Enterprise "Camilo Cienfuegos". Weight gain was checkingat intervals 180, 240, 270, 316, 326 and 365 days of birth. To the variables, live weight and average daily gain reached was applied them the theoretical suppositions of the variance analysis according to simple classification model, applying of Duncan (1955) to determine the differences among the stockings of each treatment, by means of statistical package InfoStat. It was better the earnings of alive weight, in the females the T3 treatment the same as of 7 to 90 days, followed by the T1, with in agreement earnings to the weight range that to reach should the females in development in near period to the coming of the puberty for the livestock milk in tropic. The average daily gain after the weaning maintained a rhythm among 450 to 500 g/animal/day although they fall in later weight because of insufficient alimentary base of the unit 188 where the growth of the female continues approximately from the 280 to 365 days, what attempts with the obtaining of females of substitution of quality.

32-44

Authors: Hubert Viltres Sala, Paúl Rodríguez Leyva

For the recovery of information semantic web techniques are used that enrich the information by extracting knowledge and making annotations. This article proposes a component for making semantic annotations in indexed documents, which uses the content stored in a domain ontology to perform semantic annotations. Natural language processing algorithms are used in the semantic annotation process to improve the quality of the stored information. Accuracy and completeness metrics allowed to corroborate the quality, pertinence and relevance of semantic annotations in information retrieval.

59-78

Authors: William Patricio Proaño Ponce, Jorge Freddy Ramírez Pérez, Iverilys Pérez Hernández

The objective of this study is to seek convergence of opinions and process information that a group of experts has about the management of sustainable tourism in coastal cantons of the province of Manabí, Ecuador. As a method, the qualitative research technique was selected, specifically, the Delphi method, which favors research in the field of tourism, since one of the strengths it has is not requiring the presence of experts and the dynamics of information management. it is managed via the internet. In addition, analysis and synthesis of bibliography on the topic under study and comparative analysis of methodologies used in previous research on the field of tourism was carried out. The results of this study allowed validating partially by means of a model for the management of sustainable tourism in the coastal cantons of Manabí, which contributes to the decision-making process of the cantonal Decentralized Autonomous Governments, in the use of endogenous and exogenous resources and articulation. of local actors linked to the sector. The present study is developed with a scheme that can be applied in other studies similar to the one that occupies the present.

89-102

Authors: Carlos Javier Cueto Gil, Elmidio Estévez Cruz, Carlos Díaz Guanche

The present paper has as objective to elaborate an inventory of gravitational phenomenon’s in the most western area in Cuba that offers a more integral vision of the susceptibility from the territory to the occurrence of this phenomenon. For it, they were carried out two inventories of gravitational phenomenon’s, one associated to the road through a field work and the other based in the photograph interpretation of satelital images obtained by the google earth. As a result, an inventory was obtained where they register the slides of the area and its more particular characteristics are described, elements that were not shown in an integral way until the moment, what facilitates, to interpret the results better and to determine the variables that exercise bigger influence in the occurrence of these phenomenon’s, is also shown, the most susceptible sectors to the occurrence of these. For better to graph the results three maps are elaborated, two that show the density of phenomenon’s for Popular Council and the third associate the populational density with the areas where they register the slides.

117-128

Authors: Rándolph Delgado Fernández, Guillermo Barreto Argilagos, Herlinda Rodríguez Torrens

With the objective of establish the probiotic effect of Saccharomyces cerevisiae on weight gain of calves grazing Siboney de Cuba, 40 animals, all with an average age of 180 days and an intermediate body weight of 80 kg were selected. The calves were divided into two groups (control and experimental) of 20 exemplars each ones. All of them were supplied with Norgold and in the experimental this concentrate was mixed with 100 ml of S. cerevisiae live culture. The animals were weighed at 30, 60, 90, and 120 days into the investigation; he utilized a mechanical weight fixed and weight was estimated during the morning hours with the animals in fasts. The classification in 1st, 2nd, 3st, 4st and Industrials categories accomplished according to the resolution No 153 of the year 2007. Calves fed with yeast as a nutritional additive showed a 10 kg (p < 0.05) higher weight gain than the control group; average daily gain was also higher (more than 100 g / animal / day). It’s concluded that the use of Saccharomyces cerevisiae as a nutritional additive for calves grazing is an available alternative, easy to employ that contribute to increase the weight gain.