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Swine enteric diseases
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Introduction: Diarrhoea during the first week of life is a big concern in many Danish pig herds - not least since the suspected introduction of “New Neonatal Diarrhoea Syndrome.” The study investigates pathogens and management-factors associated with these problems. Materials and Methods: A total of 107 herds including 55 Case-herds with diarrhoea during the first week of life and 52 Control-herds without diarrhoea as a herd problem filled in...
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Introduction: Weaned piglets suffer many stressors such as sudden change of feed, change of pigs groups and passive protection decrease with ageing. The aim of this study was to investigate the effect of the inclusion of a free and buffered organic acids blend (OAs) to drinking water (DW) of weaned pigs on performance in presence or absence of medication to control enteric disease. Materials and Methods: One-hundred and forty (140) pigs in a conventional herd...
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Introduction: This report describes the differential diagnose of acute diarrhoea with increased mortality in a case of late finishing pigs. In the last 3-4 batches pigs showed bloody mucoid diarrhea late in finishing after the first pigs had been marked for slaughter, resulting in a preliminary diagnosis of porcine haemorrhagic enteropathy (PHE). After acute onset of clinical signs, affected pigs usually died within 24 hours, despite systemic treatment with Tylosin or...
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In the countries with the higher levels of pig production, piglets are weaned 14 to 28 days after being born (Marion et al., 2002). As a result, piglets are lighter and the digestive system is less developed during weaning, particularly the gut. This renders these animals more susceptible to digestive problems in the post-weaning period (Reis et al., 2007). Besides its digestive functions, the gut of piglets forms a physical barrier that prevents toxic compounds and pathogens from...
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Introduction: Porcine epidemic diarrhea virus (PEDV) belongs to genus alphacoronavirus. The disease, PED, which causes high mortality rates in newborn piglets, is characterized by acute vomiting and watery diarrhea. During late 2010 in China and Southeast Aisa, several PEDV strains were initially isolated. Subsequently, the disease was pandemic in several provinces neighboring Zhejiang and later in United States in 2013. It aroused our great interest to analyze the reasons...
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Federico Ghiselli (University of Bologna) speaks on the test results of a feed additive and its impact on inflammation and epithelial integrity, during the Symposium on Gut Health in St. Louis, USA....
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Marina Kamoei (Merck Animal Health) discussed ileitis and the impact of intestinal diseases on production, during IPVS2022 in Rio de Janeiro, Brazil....
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Frédéric Vangroenweghe (Elanco Animal Health) demonstrated the efficacy of an oral live non-pathogenic E. coli F4/F18 vaccine (Coliprotec®) for active immunization of piglets against post-weaning diarrhea, during IPVS2022 in Rio de Janeiro, Brazil....
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Wes Schweer (Zinpro) talked about different treatment and management situations when this occurs, in this Swine It interview with host Laura Greiner....
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Introduction Post-weaning diarrhoea ( PWD ) is a significant enteric disease causing considerable economic losses for the pig industry. Among several etiological risk factors, enterotoxigenic Escherichia coli ( ETEC ) is considered to be a major cause, i.e. colibacillosis. The use of antibiotics at subtherapeutic concentrations was routinely used as growth promoters for several decades, but has since 1 January 2006 been banned in the European Union due to the...
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Introduction: Brachyspira pilosicoli is the etiologic agent of porcine colonic spirochetosis, a diarrheal disease in growing pigs. Colitis associated with Brachyspira pilosicoli is less severe than swine dysentery caused by Brachyspira hyodysenteriae , however, antimicrobial therapy is needed on some farms to treat diarrhea in weaners and in young finishing pigs. According to principles of prudent use of antimicrobials, only effective drugs should be...
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Introduction: Brachyspira hyodysenteriae is the primary etiologic agent of Swine Dysentery. The disease causes severe mucohaemorrhagic diarrhoea, and thereby severe economic losses to swine production. This study aimed to evaluate the genetic diversity, epidemiology and phylogeny among Brazilian isolates of B. hyodysenteriae obtained from outbreaks in 1990s and from 2011 to 2015. Materials and Methods: Forty-eight Brazilian isolates of...
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Introduction: Outbreaks of bloody diarrhea in swine herds in the late 2000s signaled the re-emergence of swine dysentery in the U.S. Diagnostic investigations confirmed the emergence of a novel pathogen “ Brachyspira hampsonii ” with two distinct genetic groups circulating in U.S. swine. It has since been detected in swine and migratory birds in North America and Europe. Objective: The aim of this study was to develop and implement a...
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Introduction: Enteric infections cause economic losses in pig production. Increases in costs are associated with reduced average daily gain (ADG), increased mortality rate and increased in use of antibiotics. Porcine proliferative enteropathies (PPE), swine dysentery (SD), porcine spirochetosis and salmonellosis are enteric diseases caused by L. intracellularis (LI), B. hyodysenteriae (BH), B. pilosicoli (BP) and Salmonella enterica ...
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Introduction: Brachyspira spp. are a group of enteric pathogens prevalent worldwide in most swine rearing geographies. To determine appropriate therapy for Brachyspira disease, minimum inhibitor concentrations (MIC) of antibiotics are a common first step. Narasin is a recently FDA approved ionophore antibiotic to improve growth in swine in the USA. The objective of this study was to determine the MIC of tiamulin and narasin using Brachyspira isolates from clinical...
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Introduction: Brachyspira hyodysenteriae is the aetiologic agent of swine dysentery (SD), an infectious disease that affects growing and fattening pigs causing severe bloody diarrhoea and haemorrhagic colitis. Brachyspira pilosicoli causes a non-fatal and non-bloody milder catarrhal colitis named porcine intestinal spirochaetosis (PIS) in young pigs. Our purpose has been to determine the prevalence of these two spirochaetes in Spanish farms with...
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Background Porcine epidemic diarrhea virus (PEDV) is an enveloped single-stranded positive sense RNA virus belonging to the Order Nidovirales, the family Coronaviridae and the genus Alphacoronavirus (Saif et al. [1]). Following detection in the US swine population during May, 2013, the virus spread rapidly across the country and 6317 cases of Porcine Epidemic Diarrhea (PED) have been confirmed in 29 states as of May 3, 2014 [2,3]. While little information is known regarding the...
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