DISTRIBUCIÓN DE LOS ANFIBIOS EN LA PROVINCIA DE GRANADA (SE PENINSULA IBÉRICA)

In this article on use the 10 x 10 km. U. T. M. gnd system to represent the distribution of Amphibians in the province of Granada. We have taken great care to make the sampling effort homogeneus among the 13 1 squares in which the province was divided. We have found 11 Amphibians species, 3 of which are Urodelans and 8 are Anurans. The Granada province is the South-oriental limit for the distribution of the Urodelans in the Ibenan Peninsula, and this is perhaps the reason that the populations of these species are scarce and difficult to find in this area. However, al1 Amurans species show a more South-oriental distnbution. We have studied some physical and climatic parameters to observe which factors condition the distribution of each species. The principal factors in this study area that influence the distnbution are the rainfall, number of water places, the limestone lithology and the presence of woody and shruby areas.En el presente artículo se representa la distnbución de los anfibios por medio de la malla U. T. M. de 10 x 10 km. Se ha prestado especial atención a la homogeneización del esfuerzo de muestre0 a través de las 131 cuadrículas en las que queda dividida la provincia de Granada. En el área de estudio se han encontrado 1 1 especies de anfibios, de las que 3 son urodelos y 8 son anuros. Por aquí pasa el límite suroriental de la distribución ibérica de los urodelos por lo que las poblaciones de las especies son escasas y puntuales; sin embargo, todas las especies de anuros presentan poblaciones más surorientales. Se ha estudiado la relación entre diversos parámetros medioambientales y la distribución de las especies; en el área de estudio el factor con más influencia es, como cabría esperar, la precipitación, seguido del número de puntos de agua, la litología caliza y la presencia de masas arbóreas o arbustivas

Efectos de la práctica deportiva sobre las características óseas de los miembros inferiores en deportistas

Los objetivos de la presente revisión son, por un lado, dar a conocer el estado actual de la investigación realizada sobre las diferentes adaptaciones óseas derivadas de la práctica deportiva en los miembros inferiores y, por otro, determinar qué tipo de actividades o especialidades deportivas son las más indicadas para evitar o frenar el desarrollo de la osteoporosis en estas estructuras óseas

Effects of sport practice on bone characteristics of the lower extremities in athletes

Los objetivosde la presente revisión son, por un lado, dar a conocer el estado actual de la investigación realizada sobre las diferentes adaptaciones óseas derivadas de la práctica deportiva en los miembros inferiores y, por otro, determinar qué tipo de actividades o especialidades deportivas son las más indicadas para evitar o frenar el desarrollo de la osteoporosis en estas estructuras óseas.The aims of this review are to give to know the actual status of investigation developed on different bone adaptations in lower extremities related to sport practice, and to determine what kind of physical activities or sport practice are the most indicated to avoid or to contain the development of osteoporosis in this bone structures

Análisis de efectos fijos sobre el comportamiento productivo de la raza caprina murciano granadina en el núcleo de control de Almería

El objetivo del presente estudio es determinar la influencia del efecto año, época de parto, número de lactación y ganadería sobre la producción de leche estandarizada a 240 días en cabras de raza Murciano-Granadina. La base información deriva del control lechero oficial desarrollado durante quince años en el núcleo de control de Almería de la Asociación Nacional de Criadores de Caprino de Raza Murciano-Granadina. Los resultados mostraron que la producción de leche se encuentra fuertemente influenciada por todos los efectos estudiados, hecho que resulta muy interesante en una raza principalmente explotada en condiciones semiextensivas y con una elevada dependencia ambiental

Comparison of Mycoplasma hyopneumoniae and porcine circovirus 2 commercial vaccines efficacy when applied separate or combined under experimental conditions

Background Mycoplasma hyopneumoniae (Mhyo) and Porcine circovirus 2 (PCV-2) are two of the most significant infectious agents causing economic losses in the weaning to slaughter period. Due to their similar vaccination age, the objective of this study was to assess the efficacy of two already existing Mhyo (Hyogen®) and PCV-2 (Circovac®) vaccines when administered separately or combined (RTM) by means of Mhyo or PCV-2 experimental challenges. Results Seven groups of animals were included in the study, being three of them challenged with PCV-2, three with Mhyo and one composed of non-challenged, non-vaccinated pigs. Within each experimental challenge, non-vaccinated (NV) groups were compared with double vaccinated groups using the commercial products separated (VS) or combined (VC). Both vaccinated groups showed significant differences for most parameters measured regarding PCV-2 (serology, percentage of infected animals and viral load in tissues) and Mhyo (serology and gross lesions) when compared to NV groups. VS and VC offered similar results, being only significantly different the PCV-2 antibody values at different time points (higher in the VS group) of the study, although not at the termination day (21 days post-PCV-2 inoculation). Conclusion The present study expands the knowledge on the possibility of using two separate Mhyo and PCV-2 commercial vaccines as a RTM product, which offered equivalent virological, immunological and pathological outcomes as compared to these vaccines when used by separate.info:eu-repo/semantics/publishedVersio

Efficacy Studies of a Trivalent Vaccine Containing PCV-2a, PCV-2b Genotypes and Mycoplasma hyopneumoniae When Administered at 3 Days of Age and 3 Weeks Later against Porcine Circovirus 2 (PCV-2) Infection

Four studies under preclinical and clinical conditions were performed to evaluate the efficacy of a new trivalent vaccine against Porcine circovirus 2 (PCV-2) infection. The product contained inactivated PCV-1/PCV-2a (cPCV-2a) and PCV-1/PCV-2b (cPCV-2b) chimeras, plus M. hyopneumoniae inactivated cell-free antigens, which was administered to piglets in a two-dose regime at 3 days of age and 3 weeks later. The overall results of preclinical and clinical studies show a significant reduction in PCV-2 viraemia and faecal excretion, and lower histopathological lymphoid lesions and PCV-2 immunohistochemistry scores in vaccinated pigs when compared to non-vaccinated ones. Furthermore, in field trial A, a statistically significant reduction in the incidence of PCV-2-subclinical infection, an increase in body weight from 16 weeks of age to slaughterhouse and an average daily weight gain over the whole period (from 3 days of age to slaughterhouse) was detected in the vaccinated group when compared to the non-vaccinated one. Circulation of PCV-2a in field trial A, and PCV-2b plus PCV-2d in field trial B was confirmed by virus sequencing. In conclusion, a double immunization with a cPCV-2a/cPCV-2b/M. hyopneumoniae vaccine was efficacious against PCV-2 infection by reducing the number of histopathological lymphoid lesions and PCV-2 detection in tissues, serum, and faeces, as well as reducing losses in productive parameters.info:eu-repo/semantics/publishedVersio

Efficacy Studies of a Trivalent Vaccine Containing PCV-2a, PCV-2b Genotypes and Mycoplasma hyopneumoniae When Administered at 3 Days of Age and 3 Weeks Later against Porcine Circovirus 2 (PCV-2) Infection

Four studies under preclinical and clinical conditions were performed to evaluate the efficacy of a new trivalent vaccine against Porcine circovirus 2 (PCV-2) infection. The product contained inactivated PCV-1/PCV-2a (cPCV-2a) and PCV-1/PCV-2b (cPCV-2b) chimeras, plus M. hyopneumoniae inactivated cell-free antigens, which was administered to piglets in a two-dose regime at 3 days of age and 3 weeks later. The overall results of preclinical and clinical studies show a significant reduction in PCV-2 viraemia and faecal excretion, and lower histopathological lymphoid lesions and PCV-2 immunohistochemistry scores in vaccinated pigs when compared to non-vaccinated ones. Furthermore, in field trial A, a statistically significant reduction in the incidence of PCV-2-subclinical infection, an increase in body weight from 16 weeks of age to slaughterhouse and an average daily weight gain over the whole period (from 3 days of age to slaughterhouse) was detected in the vaccinated group when compared to the non-vaccinated one. Circulation of PCV-2a in field trial A, and PCV-2b plus PCV-2d in field trial B was confirmed by virus sequencing. In conclusion, a double immunization with a cPCV-2a/cPCV-2b/ M. hyopneumoniae vaccine was efficacious against PCV-2 infection by reducing the number of histopathological lymphoid lesions and PCV-2 detection in tissues, serum, and faeces, as well as reducing losses in productive parameters

Efficacy Studies against PCV-2 of a New Trivalent Vaccine including PCV-2a and PCV-2b Genotypes and Mycoplasma hyopneumoniae When Administered at 3 Weeks of Age

This study aimed to evaluate the efficacy of a new trivalent vaccine containing inactivated Porcine Circovirus 1-2a and 1-2b chimeras and a Mycoplasma hyopneumoniae bacterin administered to pigs around 3 weeks of age. This trivalent vaccine has already been proved as efficacious in a splitdose regimen but has not been tested in a single-dose scenario. For this purpose, a total of four studies including two pre-clinical and two clinical studies were performed. Globally, a significant reduction in PCV-2 viraemia and faecal excretion was detected in vaccinated pigs compared to non-vaccinated animals, as well as lower histopathological lymphoid lesion plus PCV-2 immunohistochemistry scorings, and incidence of PCV-2-subclinical infection. Moreover, in field trial B, a significant increase in body weight and in average daily weight gain were detected in vaccinated animals compared to the non-vaccinated ones. Circulation of PCV-2b in field trial A and PCV-2a plus PCV-2d in field trial B was confirmed by virus sequencing. Hence, the efficacy of this new trivalent vaccine against a natural PCV-2a, PCV-2b or PCV-2d challenge was demonstrated in terms of reduction of histopathological lymphoid lesions and PCV-2 detection in tissues, serum and faeces, as well as improvement of production parameters.info:eu-repo/semantics/publishedVersio

Revista de Vertebrados de la Estación Biológica de Doñaña

Comportamiento reproductor del camaleón común (Chamaeleo chamaeleon L.) en el sur de EspañaDistribución de los reptiles en la provincia de Granada (SE. Península Ibérica)Datos sobre la reproducción y el crecimientode Psammodromus hispanicus Fitzinger, 1826 en un medio adehesado de la España CentralVariación en la colocación y orientación del nido del Alzacola (Cercotrichas galactotes) en dos especies de árbolesOrganización de la comunidad de aves reproductora en las landas montanas del País Vasco AtlánticoEcología de una población ibérica de lobos (Canis Lupus)Etude biométrique des Crosidures (Soricidae, Insectivora) de la región de Massa (Souss, Maroe).Variación geográfica del género Eliomys en la Península IbéricaTendencias gregarias del Ciervo (Cervus elaphus) en Doñana.Data on the autumn diet of the red deer (Cervus elaphus L. 1758) in the Montes de Toledo (Central Spain)Nota sobre la coexistencia de Hyla arborea (L. 1758E Hyla meridionalis (Boettger 1874) rn rl Valle del TiétarCalendario reproductivo y tamaño de las puesta en el galápago leproso, Mauremys leprosa (Shweigger, 1812), en Doñana, HuelvaPelícola (Felicola) inaqualis Piager, 1880 (MALLOPHAGA:TRICHODECTIDAE) parásito deE Herpestes ichneumon L (CARNIVORA: HERPESTIDAE)Abundancia y amplitud de los desplazamientos de Apodemus sylvaticus en cuatro biotopos de Doñana que difieren en cobertura vegetalPeer reviewe

Efficiency analysis of spur gears with a shifting profile

A model for the assessment of the energy efficiency of spur gears is presented in this study, which considers a shifting profile under different operating conditions (40–600 Nm and 1500–6000 rpm). Three factors affect the power losses resulting from friction forces in a lubricated spur gear pair, namely, the friction coefficient, sliding velocity and load sharing ratio. Friction forces were implemented using a Coulomb’s model with a constant friction coefficient which is the well-known Niemann formulation. Three different scenarios were developed to assess the effect of the shifting profile on the efficiency under different operating conditions. The first kept the exterior radii constant, the second maintained the theoretical contact ratio whilst in the third the exterior radii is defined by the shifting coefficient. The numerical results were compared with a traditional approach to assess the results.The authors would like to acknowledge Project DPI2013-44860 funded by the Spanish Ministry of Science and Technology and the COST ACTION TU 1105 for supporting this research