ESAV - DZERV - Capítulo em obra internacional, como autor
Permanent URI for this collection
Browse
Browsing ESAV - DZERV - Capítulo em obra internacional, como autor by Issue Date
Now showing 1 - 10 of 24
Results Per Page
Sort Options
- Epidemiology and Emergence of Schmallenberg Virus Part 2: Pathogenesis and Risk of Viral SpreadPublication . Esteves, Fernando; Mesquita, João; Nóbrega, Carmen; Santos, Carla; Monteiro, António; Cruz, Rita; Helena, Vala; Coelho, Ana CláudiaSchmallenberg virus (SBV) is a novel Orthobunyavirus causing mild clinical signs in cows and malformations in aborted and neonatal ruminants in Europe. SBV belongs to the family Bunyaviridae and is transmiĴed by biting midges. This new virus was identified for the first time in blood samples of cows in the city of Schmallenberg in North-Rhine Westphalia in November 2011. Since then, the virus spread to several European countries. Here, we describe the pathogenesis and the risk of viral spread in the Portuguese territory.
- How Experience can be Useful in Veterinary Pathological AnatomyPublication . Tomé, Paulo; Vala, HelenaVeterinary anatomical pathology is a medical specialty very similar to human anatomical pathology. This specialty consists in diagnosing diseases, based mostly on the gross and microscopic examination of organs and tissues, obtained by surgical procedure or necropsy It consists in the application of criteria based in the knowledge of the gross and histological lesions to obtain a final pathological diagnosis. The aim of this specific diagnosis is, generally, to find which disease affects the animal, if it is alive, or what caused its death. The main difficulties in veterinary pathological diagnosis are related to the various animal species a pathologist has to deal with, the use of exhaustive classifications of different types, the costs, the subjectivity, including disagreement between the clinical and pathologic diagnoses, and the urgency in issuing the report. So the urgent need to compile all available information to obtain a diagnosis, in a short period of time, is the constant challenge placed to the professional experts in the area concerned. This chapter proposes a framework and a software system that can be useful for making diagnosis of disease. We developed the framework based on the analysis of the bibliography of the domain. Both proposals can be useful for making better diagnosis.
- The Endocrine Glands in the Dog: From the Cell to HormonePublication . Vala, Helena; Rodrigo, Joao; Esteves, Fernando; Santos, Carla; Cruz, Rita; Mega, Cristina; Nóbrega, Carmen; Payan-Carreira, RitaThe animal body represents one of the more complex and perfect systems of nature. Despite its complexity and its functionality, which is incredibly effective, the control of its basic functions is performed by only two systems: the nervous system and endocrine system. The nervous system is associated with electrical and chemical signals that are transmitted at high speed, resulting in rapid organic activities. The endocrine system acts through the synthesis and release of chemical messengers and is responsible for several functions of the organism, in a slower, but more durable way. Endocrinology is the science that studies the internal secretions produced by endocrine glands. Endocrine glands are distributed throughout the body and secrete chemical messengers – hormones, in response to an internal or external stimulus. These hormones are released directly into the bloodstream – endocrine mechanism, in contrast to exocrine glands, which use a ductal system to release their secretions in locations that lead, ultimately, to the exterior of the body – exocrine mechanism. Hormones are transported through the bloodstream to target organs, where they will exert a physiological control, even in low concentrations, coordinating a multiplicity of organic functions and maintaining homeostasis. The main endocrine glands in the animal body include pituitary gland, thyroid, parathyroid, pancreas, adrenal (Figure 1), and gonads (ovaries and testes).
- Hormones and their Functions in the Dog. From the Cell to Hormone and from Hormone to ActionPublication . Vala, Helena; Mesquita, João; Esteves, Fernando; Cruz, Rita; Mega, Cristina; Nóbrega, CarmenAnimal bodies represent one of the more complex and perfect systems of nature but despite its complexity and functionality, the control of its basic functions is performed by only two systems: the nervous system and the endocrine system. Reproduction, gestation, muscle contraction, nutrient digestion and absorption, hydroelectrolytic balance, haematopoiesis and so many other bodily functions, are directly or indirectly controlled by these systems. In a simplistic way, we can say that the nervous system is responsible for rapid organic activities, while the endocrine system is responsible for a slower, more durable activity, the metabolic functions of the organism. The endocrine system is essential for growth and development, sexual function, reproductive processes and metabolism. In the present work the authors describe the main endocrine glands in the dog, namely anterior and posterior pituitary gland, thyroid, parathyroid, pancreas and adrenal glands, referring their location, macroscopic and histologic features, using original figures. Main endocrine hormones and hormonal functions will also be addressed in a simple, straightforward and original manner, using cutting-edge, innovative schemes that will contribute for an easy and direct understanding of the complex endocrine mechanisms. The endocrine system is often subjected to pathological changes. Improving knowledge in the field of endocrinology will allow for a better clinical approach to animal patients, enhancing, without doubt, the provision of better medical veterinary care and its advancement towards excellence.
- Recolha e Envio de Material para o Laboratório de Anatomia PatológicaPublication . H, Vala; Pires, M. A.A obtenção de um diagnóstico correto que responda adequadamente às necessidades na prática clínica diária, capaz de interpretar e justificar os sintomas observados, constitui um dos maiores objetivos do serviço de Anatomia Patológica. Para uma resposta apropriada é necessário que as amostras biológicas sejam bem colhidas e que o seu acondicionamento e envio seja o indicado para cada órgão, lesão observada e tipo de material biológico, de modo a permitir no laboratório a realização de outros métodos complementares de diagnóstico. As amostras colhidas devem ser devidamente acondicionadas para serem transportadas até ao laboratório e remetidas acompanhadas de ficha de requisição ou ficha clínica devidamente preenchida. As dificuldades mais observadas no laboratório de Anatomia Patológica prendem-se com a colheita de material inadequado, erros no cumprimento das regras para uma fixação adequada, a ausência de identificação que permita a orientação das amostras, a incorrecta identificação dos recipientes primários, o insuficiente preenchimento da ficha clínica ou preenchimento com letra ilegível, e o deficiente acondicionamento da amostra durante o transporte. A correção dos erros mais frequentemente detetados permite tornar o relatório do diagnóstico de Anatomia Patológica mais célere e fiável.
- Epidemiology and Emergence of Schmallenberg Virus Part 2: Pathogenesis and Risk of Viral SpreadPublication . Esteves, Fernando; Mesquita, João Rodrigo; Nóbrega, Cármen; Santos, Carla; Monteiro, António; Cruz, Rita; Vala, Helena; Coelho, Ana CláudiaSchmallenberg virus (SBV) is a novel Orthobunyavirus causing mild clinical signs in cows and malformations in aborted and neonatal ruminants in Europe. SBV belongs to the family Bunyaviridae and is transmitted by biting midges. This new virus was identified for the first time in blood samples of cows in the city of Schmallenberg in North-Rhine Westphalia in November 2011. Since then, the virus spread to several European countries. Here, we describe the pathogenesis and the risk of viral spread in the Portuguese territory.
- Dairy Farm Layout and Design: Building and Yard Design, Warm ClimatesPublication . Andrews, J.; Davison, T.; Pereira, J.The current knowledge revised in this article describes a wide range of facilities in common use on dairy cattle farms in warm climates. A dairy cattle farm consists of several facilities, such as housing system, yards, manure pits, milking center, environmental protection structures, forage storage, and several machines for different facilities. Any facility design tends to be a compromise, often between many factors, and no single solution will be optimal for all concerned.
- New trends in food science: the use of nutraceuticals as an antiinflammatory therapeutic tool in exercisePublication . Lemos, Edite Teixeira de; Oliveira, Jorge; Lemos, Luís Pedro Teixeira de; Lima, Maria João Reis; Pinheiro, João PáscoaProlonged high-intensity training seems to result in increased systemic inflammation, which might explain muscle injury, delayed onset muscle soreness, and overtraining syndrome in athletes. Furthermore, an impaired immune function caused by strenuous exercise leads to the development of upper respiratory tract infections in athletes. Nutraceuticals might help counteract these performance-lowering effects. The use of nanotechnology is an interesting alternative to supply athletes with nutraceuticals, as many of these substances are insoluble in water and are poorly absorbed in the digestive tract. The present chapter starts with a brief review of the effects of exercise on immunity, followed by an analysis on how nutraceuticals such as omega-3 fatty acids, glutamine, BCAAs, or phytochemicals can counteract negative effects of strenuous exercise in athletes. Finally, how nanostructured delivery systems can constitute a new trend in enhancing bioavailability and optimizing the action of nutraceuticals will be discussed, using the example of food beverages.
- Epidemiology and Emergence of Schmallenberg Virus Part 1: Origin, Transmission and Differential DiagnosisPublication . Esteves, Fernando; Mesquita, João; Nóbrega, Carmen; Santos, Carla; Monteiro, António; Cruz, Rita; Vala, Helena; Coelho, Ana CláudiaSchmallenberg virus (SBV) is a novel Orthobunyavirus causing mild clinical signs in cows and malformations in aborted and neonatal ruminants in Europe. SBV belongs to the family Bunyaviridae and is transmitted by biting midges. This new virus was identified for the first time in the blood samples of cows in the city of Schmallenberg in NorthRhine-Westphalia in November 2011. Since then the virus spread to several European countries. Here we describe the origin and emergence, as well as the transmission and the differential diagnosis of this virus, now known to be a serious threat to Veterinary Public Health.
- Goat System Productions: Advantages and Disadvantages to the Animal, Environment and FarmerPublication . Monteiro, António; Costa, José; Lima, M. J. ReisGoats have always been considered very useful animals. Goats success is related to its excellent adaptability to the difficult mountain conditions, extreme weather and low value feed acceptance, versatile habits and high production considering their size. These are some reasons because goats are among the first animals to be domesticated. In terms of evolution, goats could be separated by their dispersion area in three large groups: the European, the Asian, and the African. Global goat populations, mainly in Africa and in Asia, have increased for centuries but very strongly in the past decades, well above the world population growth. They are also used for forest grazing, an integrated and alternative production system, very useful to control weed growth reducing fire risk. Despite some exceptions, no large‐scale effort to professionalize this industry has been made so far. There are consumers for goat dairy products and there is enough global production, but misses a professional network between both. Regarding goat meat, the world leadership also stays in Africa and Asia, namely in China, and there is a new phenomenon, the spreading of goat meat tradition through Europe due to migrants from Africa and other places with strong goat meat consumption
- «
- 1 (current)
- 2
- 3
- »