ABSTRACT In the last decades animal production has considerably increased worldwide to sustain an ever-growing human population. Among animal reared for consumption purposes, chickens are undoubtedly one of the most successful, mainly due to their rapid growth rate. The development of broiler farming has been accompanied in recent years by a substantial attention to animal welfare. This study is aimed at assessing the effects of different housing conditions on both feed conversion ratio and mortality of male broiler flocks through a large-scale study (more than 100 million birds) involving 977 farms belonging to one major producer. For this, we evaluated nine features of the housing system using a linear model with random effect. The features were: roofing, floor, drinkers, feeders, water source, color curtain color, management, light and ventilation. A total of 3516 poultry flocks were assessed. Positive ventilation, metal and clay roof, dirt floor and owner management were shown to reduced mortality. Concrete floor, negative ventilation, blue curtains, fluorescent lightening, owner management, tap water and well water significantly improved FCR. We discuss our findings in relation with economic constraints and provide advices to encourage farmers using simple devices that will improve both production and chicken survival.

ABSTRACT In broiler production, the litter is reused for consecutives flocks, and it is treated during down time between flocks to reduce its microbial load. Although covering the litter with a plastic canvas is a common litter treatment in the field, there is little scientific information available on its efficacy. The aim of this study was to evaluate the effects of covering broiler litter with a plastic canvas for eight days on litter microbiological, physical, and chemical parameters, and on the intestinal microbiota and immunity of broilers. In the first trial, reused litter from a previous flock was distributed into three treatments, with six replicates each: L1 (negative control, litter free from Salmonella Enteritidis (SE) and Eimeria maxima (EM) and not covered), L2 (positive control, litter with SE and EM, and not covered), and L3 (litter with SE and EM, and covered with plastic canvas for eight days). Litter total bacteria, Enterobacteria, Lactobacillus, SE, and EM counts, and litter pH, temperature, moisture, and ammonia emission were determined on days 1 and 8. In the second trial, broilers were housed on those litters according to the treatments described above, and their intestinal microbiota, gut CD4+ and CD8+ lymphocytes and macrophages, and liver and intestinal pro-inflammatory interleukin (IFN-γ, IL-1β e IL-18) levels were evaluated on days 14 and 28. A significant reduction of litter bacterial populations was observed in the litter covered with plastic canvas. A significantly higher mRNA IFN-γ gene expression (12.5-fold) was observed in the jejunum and liver of broilers reared on the litter with Enterobacteria counts. No EM reduction was observed in the covered litter. Covering reused broiler litter with plastic canvas reduces initial litter bacterial load as a result of the interaction between physical and chemical parameters.

Introduction and objectives: Breakthrough cancer pain (BTcP) is an acute exacerbation of baseline pain. The clinicians involved in its management have different diagnostic and therapeutic criteria. In order to facilitate decision making in usual clinical practice, 8 reference experts from 4 scientific associations involved in the management of patients with cancer pain have developed this Consensus Document. Methods: After an initial search on the most relevant publications in BTcP literature, a set of preliminary recommendations were established. A working meeting was subsequently held with the experts, following the Metaplan® methodology -a structured brainstorming technique- that produced a first version of the Consensus Document which, after several review rounds, was validated by all the participants. Every statement and recommendation was sorted according to its degree of recommendation, following the categories in the SIGN (Scottish Intercollegiate Guidelines Network) system. Results: The management of BTcP requires a full anamnesis, both of BTcP itself and of baseline pain, a physical examination and the supplementary tests that are deemed necessary. The drugs of choice for the treatment of BTcP must be those with a potent and rapid analgesic effect a short duration, minimal side effects and easy administration. Transmucosal fentanyl is currently the active ingredient most fitting to the analgesic needs of BTcP, regardless of the major opioid used for control of the baseline pain. Conclusion: This Consensus can be a very useful tool to improve the quality of life in cancer patients, because it guides the clinician towards a better diagnose and treatment of BTcP.

Introducción y objetivos: el dolor irruptivo oncológico (DIO) es una exacerbación aguda del dolor que presenta diferentes criterios diagnósticos y de tratamiento por parte de los distintos especialistas implicados en su manejo. Para facilitar la toma de decisiones en la práctica clínica habitual, ocho especialistas de referencia de cuatro sociedades científicas implicadas en el manejo del paciente oncológico han diseñado este documento. Métodos: tras una búsqueda bibliográfica en las publicaciones más relevantes sobre DIO se establecieron las recomendaciones preliminares. El grupo de expertos realizó una reunión de trabajo siguiendo la metodología Metaplan® en la que se debatieron las recomendaciones que incorporar al documento. Cada una de las afirmaciones y recomendaciones fueron clasificadas según su grado de recomendación, atendiendo a las categorías del sistema SIGN (Scottish Intercollegiate Guidelines Network). Resultados: el manejo del DIO requiere una anamnesis completa tanto del DIO como del dolor basal y una exploración física del paciente asociada a pruebas complementarias cuando sean precisas. Los fármacos de elección para el tratamiento del DIO deben ser aquellos que muestren una analgesia potente, con rápido inicio, de efectos secundarios mínimos y de fácil administración. El fentanilo administrado por vía transmucosa es actualmente el principio activo más adecuado a las necesidades analgésicas del dolor irruptivo, con independencia del opioide mayor utilizado para el control del dolor basal. Conclusión: este consenso puede ser una herramienta útil para la mejora de la calidad de vida del paciente con cáncer, ya que permite un mejor diagnóstico y tratamiento del DIO.

Pain control is an important aspect in the quality of the healthcare. The drug of choice in breakthrough pain control requires potency and a very fast rate of absorption. This speed is a critical aspect. The preparations of fentanyl, because of its great potency, probably are drugs that the clinician should use in patients with breakthrough pain, but not all fentanyl preparations have similar kinetics. The pharmacokinetic properties of fentanyl buccal tablets (FBT) powered by OraVescent® drug delivery technology have shown great speed of absorption, much faster than other preparations of opiates. There is evidence indicating that the preparation of FBT fentanyl is effective in episodes of cancer breakthrough pain. Fentanyl FTB has also shown efficacy in breakthrough pain not related to cancer.

El control del dolor en el paciente oncológico es un aspecto importante en la calidad de la asistencia a las personas. El fármaco de elección en el tratamiento del DIO requiere una potencia adecuada y una muy rápida velocidad de absorción. Esta velocidad es un aspecto crítico. Las preparaciones de fentanilo, debido a su gran potencia, son probablemente los fármacos que el clínico debe emplear en el DIO, pero no todas las preparaciones de fentanilo presentan una cinética similar. Las propiedades farmacocinéticas del comprimido bucal de fentanilo (CBF) con tecnología OraVescent®, han mostrado una gran velocidad de absorción, mucho más rápida que otras preparaciones de opiáceos. Se dispone de evidencia suficiente que indica que la preparación de CBF es eficaz en los episodios de DIO. El CBF ha mostrado eficacia también en dolor irruptivo no relacionado con el cáncer.

Introduction objectives: Breakthrough cancer pain (BTcP) is an acute exacerbation of baseline pain. The clinicians involved in its management have different diagnostic and therapeutic criteria. In order to facilitate decision making in usual clinical practice, 8 reference experts from 4 scientific associations involved in the management of patients with cancer pain have developed this Consensus Document. Methods: After an initial search on the most relevant publications in BTcP literature, a set of preliminary recommendations were established. A working meeting was subsequently held with the experts, following the Metaplan® methodology -a structured brainstorming technique- that produced a first version of the Consensus Document which, after several review rounds, was validated by all the participants. Every statement and recommendation was sorted according to its degree of recommendation, following the categories in the SIGN (Scottish Intercollegiate Guidelines Network) system. Outcomes: The management of BTcP requires a full anamnesis, both of BTcP itself and of baseline pain, a physical examination and the supplementary tests that are deemed necessary. The drugs of choice for the treatment of BTcP must be those with a potent and rapid analgesic effect a short duration, minimal side effects and easy administration. Transmucosal fentanyl is currently the active ingredient most fitting to the analgesic needs of BTcP, regardless of the major opioid used for control of the baseline pain. Conclusion: This Consensus can be a very useful tool to improve the quality of life in cancer patients, because it guides the clinician towards a better diagnose and treatment of BTcP.

Introducción y objetivos: El dolor irruptivo oncológico (DIO) es una exacerbación aguda del dolor que presenta diferentes criterios diagnósticos y de tratamiento por parte de los diferentes especialistas implicados en su manejo. Para facilitar la toma de decisiones en la práctica clínica habitual, ocho especialistas de referencia de 4 sociedades científicas implicadas en el manejo del paciente oncológico, han diseñado este documento de consenso. Métodos: Tras una búsqueda bibliográfica en las publicaciones más relevantes sobre DIO, se establecieron las recomendaciones preliminares. El grupo de expertos realizó una reunión de trabajo siguiendo la metodología Metaplan®, donde se debatieron las recomendaciones a incorporar al documento. Cada una de las afirmaciones y recomendaciones fueron clasificadas según su grado de recomendación, atendiendo a las categorías del sistema SIGN (Scottish Intercollegiate Guidelines Network). Resultados: El manejo del DIO requiere de una anamnesis completa, tanto del DIO como del dolor basal, y una exploración física del paciente asociada a pruebas complementarias cuando sean precisas. Los fármacos de elección para el tratamiento del DIO deben ser aquellos que muestren una analgesia potente, con rápido inicio de acción, efectos secundarios mínimos y de fácil administración. El fentanilo administrado por vía transmucosa es actualmente el principio activo más adecuado a las necesidades analgésicas del dolor irruptivo, con independencia del opioide mayor utilizado para el control del dolor basal. Conclusión: Este consenso puede ser una herramienta útil para la mejora de la calidad de vida del paciente con cáncer, ya que permite un mejor diagnóstico y tratamiento del DIO.