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Salmonids have common fiscal and environmental value. right id and realizing in their illnesses are for that reason very important if priceless shares are to be maintained. This quantity offers a pragmatic consultant and an reduction to disorder reputation. this can be an up-to-date and prolonged model of the 1st ebook in 1996 and comprises round four hundred prime quality color photomicrographs.
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Extra info for A Colour Atlas of Salmonid Diseases
Malnutrition. A haemorrhagic anaemia occurs as a result of bleeding and is evident in conditions including viral haemorrhagic septicaemia. Haemorrhage is caused by injury to the vascular endothelium and can attributed to infection, inflammation, necrosis, neoplasia or trauma. Petechiae are associated with locally increased intravascular pressure or damage to the vascular endothelium and may indicate septicaemia when occurring Fig. 17 Thrombus in spongy myocardium of farmed Atlantic salmon with cardiomyopathy syndrome.
Pleuronectiformes) will require a different approach to achieve the same objective. The fish should be examined in a cool environment and case notes taken throughout the process of the post-mortem examination, and noting any deviation from normality for the species. The provision of a reference to the relative position of the abnormality or the sample taken is an essential part of the report; a few useful anatomical terms of location applicable to whole animals, tissues or histological sections are outlined in Fig.
Maintaining an organised and systematic approach to the necropsy is an important aspect of the procedure, and careful observations made during this examination will provide valuable information not only immediately, but consequently during the interpretation of the histological sections. All tissues samples must be clearly identified with a reference code when sent for processing to ensure that there is no risk of incorrect reporting. Words of wisdom: ‘A poorly performed necropsy cannot be improved at a later stage’ 4 Pathology and Disease Diagnosis Abstract A methodical approach is a prerequisite for an accurate diagnosis and requires a description of the tissue changes that occur following infectious and non-infectious conditions.