Abstracts - Pig health

Surgical castration has a negative impact on production in the suckling period, especially in pigs in the three lower quartiles for body weight.

According to the initial report from Scandinavia, B. suanatina can be isolated from birds and cross-species infection could be demonstrated infecting pigs with an avian isolate.

The study identifies the ASF transmission rate value in affected natural wild populations, for the first time, which could provide basis for modelling ASF transmission.

The effects of infection by E. coli were dependent of both bacterial load and storage period, whereas the effects of C. perfringens were mainly dependent on the bacterial load.

The objective of this study was to determine the dissemination of multidrug methicillin-resistant Staphylococcus sciuri (MDR-MRSS) in the environment after land application of manure on commercial swine farms.

Unlike domestic swine, feral swine are free ranging and have many opportunities for IAV exposure through contacts with various habitats and animals, including migratory waterfowl, a natural reservoir for IAVs.

In the field, the combined ELISA detected infection in the face of colostral IgG. In growing pigs, the IgM-IgA ELISA is a promising tool for PRRSV surveillance.

This study set out to describe detection patterns of porcine reproductive and respiratory syndrome virus (PRRSV), porcine circovirus type 2 (PCV2), swine influenza virus type A (SIV) and Mycoplasma hyopneumoniae (M. hyo) among farms showing differing severity of PRDC.

In this study, CD163-positive fetuses were completely protected from PRRSV in dams possessing a complete knockout of the CD163 receptor.

Gestation and lactation dietary supplementation mannan oligosaccharide may improve sow and litter performance and immune response.

We identified from suckling piglets with diarrhea in China a new bat-HKU2–like porcine coronavirus (porcine enteric alphacoronavirus). The GDS04 strain of this coronavirus shares high aa identities (>90%) with the reported bat-HKU2 strains in Coronaviridae-wide conserved domains, suggesting that the GDS04 strain belongs to the same species as HKU2.

The objective of this study was to evaluate the survival of PEDV in 9 different feed ingredients when exposed to 60, 70, 80, and 90 °C, as well as the survival on four different surfaces.

This study aimed to provide information regarding viral pathogenesis and molecular epidemiology linked with recently reported atypical porcine pestivirus (APPV) strains and to determine the circulation of APPV in Spain from 1997 to 2016.

Salmonella 4,[5],12:i:-, a worldwide emerging pathogen that causes many foodborne outbreaks mostly attributed to pig and pig products, is expanding in the U.S.

The results will help in the design and implementation of early detection, prevention, and control strategies for one of the most devastating diseases affecting the swine industry in the U.S.

In late 2015, an avian-origin H4N6 influenza A virus was isolated from pigs in the United States.

This study assessed the efficacy of two different Mycoplasma hyopneumoniae vaccination programmes in relation to the time of weaning.

EP-like lesions and pleuritis are routinely identified in slaughter pigs in England. EP-like lesions and pleuritis are significantly associated with a reduction in carcass weight. Endemic pig respiratory diseases remain economically important.

Isolation and propagation of the pathogen in cell culture resulted in discovery of a novel swine enteric alphacoronavirus (tentatively named SeACoV) related to the bat coronavirus HKU2.

Influenza is a costly disease for pig producers and understanding its epidemiology is critical to control it.

The purpose of the study was to evaluate the effect of vaccination against PCV2 in a sub-clinically infected, high-health finishing herd in terms of viral load in serum, feed conversion ratio and antimicrobial treatments.

The effect of week after weaning had highly significant influences on tail lesions.

Besides dosing factors, epidemiological factors (such as number of competing strains and bacterial excretion) influenced resistance development and need to be considered further in relation to optimal treatment strategies.

Here we describe a new LAV candidate with unique cross-protective abilities: BA71ΔCD2. Thus, inoculation of BA71ΔCD2 protected pigs not only against the experimental challenge with BA71, the virulent parental strain, but also against heterologous viruses, including Georgia 2007/1, the genotype II strain of ASFV currently circulating in East Europe.