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Swine vaccines
Vaccinations are available for a number of diseases that affect swine. In some cases vaccination constitutes the major part of the control of the disease. In many other cases it is only a small part of the control program. Vaccination programs need to be tailored to each swine operation. Remember that vaccination only raises a pig's level of resistance. If other important management procedures are neglected, even this elevated level of resistance may be inadequate to prevent disease.
Vaccines must be stored and administered according to label directions if they are to be effective. Slaughter withdrawal time must be observed at all times to avoid illegal residues. The most common times for administering many vaccines are before breeding and before farrowing. This protects the sow and passes antibodies to the piglets for their protection.
Background Spray dried plasma (SDP) is a protein rich product obtained from the industrial fractionation of blood from healthy animals. Blood is collected with an anticoagulant and centrifuged to separate the blood cells. Plasma is then concentrated and spray-dried under high pressure to achieve a minimum of 80 °C throughout its substance (Fig. 1). With this procedure, proteins preserve most of their biological activity [1, 2]. ...
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Introduction Staphylococcus aureus is a gram positive coccus that forms part of the normal nasal microflora in humans and other animal species. In developed countries, approximately one-quarter to one-third of healthy people harbor S. aureus in the nose, but prevalence appears to be lower in developing countries [1]. Although considered to be a commensal in the nasopharynx, S....
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Introduction
Diseases caused by E. coli have been a recognised problem for as long as pigs have been raised. Early work in the 1960s and 1970s elucidated the pathogenic mechanisms of E. coli causing newborn diarrhea, and lead to the development of maternal vaccines which effectively control this form of the disease. However, maternal vaccination with these vaccines does not protect piglets...
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Introduction Bacteria of the genus Brachyspira are anaerobic intestinal spirochaetes that can cause diarrhoea and mortality in pigs and other species. This genus comprises seven officially named species and several provisionally named species. Six of these can be found in the porcine large intestine, and currently three are considered to be enteropathogenic to the pig [1]. The most important is Brachyspira...
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Amino acids and healthy nutrition solutions - Evonik Animal Nutrition
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Introduction
The aim of this study was to investigate the efficacy of a one-shot vaccination applied either at weaning or 3 days before weaning in a herd infected with M. hyopneumoniae (Mhyo) and other respiratory pathogens.
Materials and methods
At 14 days of...
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Introduction: Potassium diformate, a double-salt of formic acid, has been shown in numerous trials to improve health and performance in piglets, growing-finishing pigs and sows. Thus, potassium diformate (KDF) has been approved in the European Union as the first non-antibiotic growth promoter for use in swine. The effect of KDF is often described as digestibility enhancing and strong antimicrobial. Similar effects have been demonstrated with sodium...
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Swine Influenza Virus (SIV) is known to be a primary respiratory pathogen for swine inducing typical lung lesions. In Europe and in Italy subtypes H1N1, H3N2 and H1N2 are almost endemic in many pig producing areas although with different prevalences in different countries in different times. In most of the cases SIV induces an acute infection of the respiratory tract whose consequences are depending on the “intrinsec pathogenicity/virulence” of a...
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Dr. John Morris Fairbrother spoke at the Congreso de Producción Porcina in Resistencia, Argentina, and gave his presentation "Recent trends in virulence and antimicrobial resistance of E. coli in pigs", where he explained the process, analyzed research data and discussed how to reduce levels of resistance....
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In less than a year, University of Saskatchewan (U of S) scientists have developed and tested a prototype vaccine that could protect the North American swine industry from a virus that has killed more than eight million pigs and cost more than $400 million in lost income since 2013.
The Porcine Epidemic Diarrhea Virus (PEDV) hit the United States in 2013 and spread to Canada in 2014. It was first discovered in Europe, and has become increasingly problematic...
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Introduction The farm was a closed herd using AI and comprised 430 breeding sows. Progeny were kept until 10 weeks of age when they were sent to a second unit for finishing. The farm was infected with PRRS virus, as well as enzootic pneumonia (EP) (Mycoplasma hyopneumoniae), pleuropneumonia (Actinobacillus pleuropneumoniae) (APP) and streptococcal meningitis/Arthritis (SM) (Streptococcus suis). The farm was planning to...
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Merck Animal Health (known as MSD Animal Health outside the United States and Canada) today introduced PORCILIS® PCV M Hyo, the first ready-to-use single-injection combination vaccine in Europe that protects piglets against both Porcine Circovirus type 2 (PCV2) and Mycoplasma hyopneumoniae (M. hyopneumoniae) infections during the finishing period. The two most prevalent pathogens in today’s swine industry, PCV2 and M. hyopneumoniae cause mild disease by...
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Hi all, can I vaccinate a pregnant sow for Circovirus? And which stage of pregnancy would be the ideal? ...
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Amino acids and healthy nutrition solutions - Evonik Animal Nutrition
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Merck Animal Health has introduced a vaccine for reducing clinical signs linked to porcine reproductive and respiratory syndrome virus (PRRS). Prime PAC PRRS+ is designed to reduce clinical signs of reproductive disease in female breeding-age swine, as well as respiratory disease in pigs three to four weeks of age and older due to PRRS. PRRS has caused losses for the US breeding and growing-pig herd market of around...
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T cells play a central role in the immune response after infection and vaccination. Two main groups of T cells can be discriminated: T cells with antigen-specific T-cell receptors (TcR) consisting of α and β chains which represent the “classical” T cells, and T cells with TcR γδ chains with less characterized immunological functions. In swine, TcR γδ T cells are a prominent and heterogeneous T-cell...
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Iowa-based animal vaccine producer, Harrisvaccines, was announced as the recipient of the 2014 World Pork Expo New Product Tour Producer’s Choice Award.
Sponsored by National Hog Farmer, this coveted award honors a product for its exceptional quality and unique technology. Harrisvaccines’ is proud to receive this honor for Porcine Epidemic Diarrhea Vaccine, RNA, the only PEDv available on the market today. This...
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NEW TEST, COUPLED WITH LAST JULY’S RAPID DETECTION TEST, BRINGS PORCINE EPIDEMIC DIARRHEA VIRUS (PEDV) DIAGNOSTICS UP TO SWINE INDUSTRY DISEASE MONITORING STANDARDS.
The University of Minnesota College of Veterinary Medicine has developed a second porcine epidemic diarrhea virus (PEDV) diagnostic test to help stem the spread of the virus currently threatening North American swine populations.
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Early vaccination of pig herds against enzootic pneumonia - as young as seven days of age - is recommended by veterinary surgeon John Hayden, who is seeing the benefits of this among his clients in East Anglia.
"There’s no doubt that providing early protection leads to better post-weaning health, with the pigs more able to cope with other challenges resulting in fewer...
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A revised licence for the vaccine Suvaxyn™ MH-One will provide a new opportunity for pig producers to extend protection against Mycoplasma hyopneumoniae.
The vaccine is now approved for use from seven days of age with a two-week onset of immunity, which means that piglets can be protected by three weeks of age when they are commonly already infected with M....
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1. INTRODUCTION Porcine Reproductive and Respiratory Syndrome (PRRS) since its first report in the late 1980s in Western Europe (Wensvoort et al., 1991) and North America (Keffaber, 1989) has caused a significant economic impact on the global swine industry (Neumann et al., 2005). The aetiological agent of PRRS is an RNA virus (PRRSV) of the order Nidovirales, family Arteriviridae, genus...
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Introduction The principal characteristic of Atrophic Rhinitis (AR) is a reduced growth rate due to the atrophy of the nasal turbinates caused by the dermonecrotoxin (DNT) released by Pasteurella multocida toxigenica (1). Sows vaccinated against AR produce elevated levels of antibodies which are passed to their offspring via the colostrum. The antibody titer against DNT is directly correlated with...
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