Porcine reproductive and respiratory syndrome (PRRS)
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چکیده
Recent reports from the China and Southeast Asia have alerted the world to a new variant of the porcine reproductive and respiratory syndrome (PRRS) virus. The disease produced by this virus is characterized by high morbidity and significant mortality that has devastated the pig industries of the affected countries (Figure 1). The growing import/export activities in that part of the world and the many countries involved prompted EMPRES to issue an early warning message. Official veterinary services in those areas, and throughout South-east Asia and parts of Africa, should be aware of this new variant of the PRRS virus, and offer advice on how to prevent the disease from establishing itself in new areas and how to control outbreaks effectively in the event that the virus does take hold.
منابع مشابه
Comparison of growth performance under field conditions in growing pigs each vaccinated with one of two commercial modified-live porcine reproductive and respiratory syndrome vaccines
Porcine reproductive and respiratory syndrome (PRRS) virus is an enveloped positive-stranded RNA virus belonging to the order Nidovirales, family Arteriviridae, and genus Arterivirus.1 PRRS virus (PRRSV) is divided into type 1 (European) and type 2 (North American) genotypes on the basis of the 3ʹ-terminal structural genes or the entire genome.2,3 PRRS is one of the most devastating diseases of...
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Porcine reproductive and respiratory syndrome (PRRS) is considered to be one of the most costly diseases affecting intensive pig production worldwide. Control of PRRS is a complex issue and involves a combination of measures including monitoring, diagnosis, biosecurity, herd management, and immunization. In spite of the numerous studies dealing with PRRS virus epidemiology, transmission of the ...
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Porcine reproductive and respiratory syndrome (PRRS) has become one of the most economically important diseases for the swine industry worldwide. The objective of the study was to determine selected blood antioxidant enzymes (glutathione peroxidase (GPX), superoxide dismutase (SOD)), biochemical and haematological parameters in PRRS positive and negative pigs of three different categories, main...
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To find an effective prevention method for porcine reproductive and respiratory syndrome (PRRS), three indices from experimental and control group pigs, namely, routine blood index, serum biochemical indicators, and conventional cell factor contents of serum, are inspected. The prevention and treatment of PRRS effect are evaluated, feeding pigs with Daitai. Results show that traditional Chinese...
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