16 research outputs found

    Diferencias morfométricas entre la abeja apis mellifera iberica y la abeja rusa de la región de primorsky

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    It has been proved that the Russian bees of the region of Primorsky have a great tolerance to Varroa. In the present work we have made a comparative study of these bees and Apis mellifera iberica, by means of a morphometric study, putting under the values obtained a descriptive statistical research, evaluating the normality of the distribution by means of the test of Kolmogorov-Smirnov and the differences between the two populations of bee by means of tests parametric (t´Student) or nonparametric (U of Mann-Whitney), according to the type of distribution

    Survival of honey bees (Apis mellifera) infected with Crithidia mellificae spheroid forms (Langridge and McGhee: ATCC® 30254™) in the presence of Nosema ceranae

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    Crithidia mellificae, a trypanosomatid parasite of Apis mellifera, has been proposed to be one of the pathogens responsible for the serious honey bee colony losses produced worldwide in the last decade, either alone or in association with Nosema ceranae. Since this pathogenic effect contradicts the results of the experimental infections originally performed by Langridge and McGhee nearly 40 years ago, we investigated the potential linkage of this protozoan with colony decline under laboratory conditions. Nosema-free and trypanosomatid-free honey bees from three different colonies were experimentally infected with fresh C. mellificae spheroid forms (reference strain ATCC30254), with N. ceranae fresh spores and with both parasites at the same time. Replicate cages were kept at 27 °C and used to analyse survival. C. mellificae spheroid forms did not reduce significantly the survival of the worker bees (64.5% at 30 days post-infection vs. 77.8% for the uninfected bees used as controls; differences were non statistically significant) under these experimental conditions. In contrast, the cages infected with N. ceranae exhibited higher rates of mortality from the 20th day post-infection onwards, irrespective of the presence of C. mellificae, suggesting that the spheroid forms of the latter have no pathological effect on A. melliferaINIA-FEDER (RTA2013-00042-C10-06 and E-RTA2014-00003-C03)S

    Ludificación de la Historia de Veterinaria

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    En este proyecto se han realizado ocho interpretaciones histórico-teatrales de personajes relevantes en la historia de la veterinaria, realizada por los propios alumnos matriculados y profesores, para facilitar el conocimiento de aspectos personales, profesionales y sociales de la Veterinaria en distintas épocas

    Elaboración de píldoras educativas sobre Historia de la Veterinaria

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    Tras el éxito de la utilización de la ludificación como motivación para el estudio de la Historia de la Veterinaria, nos propusimos crear pequeños vídeos o píldoras de conocimiento sobre hechos o personajes históricos que fueran reusables (se pueden utilizar en diferentes contextos), interoperables (sirven para propósitos diferentes) y accesibles por su formato digital que facilita el almacenaje y su recuperación. En este proyecto se ha grabado más escenas antes del confinamiento y preparados la historioteca con una de las píldoras ya definitivas

    Otros insectos

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    Control de dípteros voladores, pulgas y piojos en pequeños rumiantes

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    En este capítulo abordamos el control de ciertos insectos parásitos que si bien no representan la importancia de otras parasitosis, como son las moscas productoras de miasis, suponen para el animal causa de irritación y malestar, con la consecuente merma de los parámetros productivos, cuando no la transmisión de otros agentes de mayor patogenicidad

    Host and environmental factors as determinants of equine piroplasmosis seroprevalence in Central Spain

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    Aim of study: To estimate equine piroplasmosis seroprevalence, identify associated risk factors and assess infection recentness.Area of study: Community of Madrid (Central Spain)Material and methods: Sera from 139 horses and 40 donkeys were examined by cELISA to evaluate Babesia caballi and Theileria equi seroprevalences and examine potential risk factors. They included species, gender, age, breed, colour coat, dedication, external parasite treatments, access to pasture, contact with other species, new introduction, tick infestation, farm altitude, land cover, soil type and climatic zone. A bivariate analysis was performed and significant variables were included in a logistic regression model to examine their independent contribution. In positive samples ELISA inhibition percentiles (EIPs) were used to assess whether infections were old or recent.Main results: True seroprevalence (95% CI), adjusted for test sensitivity and specificity was 19% (13-27) for T. equi and 1% (0-3) for B. caballi. In the bivariate analysis, T. equi seroprevalence varied significantly according to horse and farm-level explanatory variables; high seroprevalence groups generally had high EIPs suggesting recent infection. The multivariable analysis revealed that T. equi seroprevalence increased with age, it was higher in police horses compared to sporting, recreational and breeding animals and in those living in lower altitude where planosol soil type was predominant.Research highlights: T. equi seroprevalence in the area was significantly higher than B. caballi seroprevalence and depends on animal management and environmental factors that affect vector abundance and diversity. Identified risk factors must be considered to improve tick and tick-borne disease control and prevention
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