Abstracts - Pig health

An Italian study investigated the intestinal bacterial diversity of healthy pigs with different susceptibility to ETEC and fed different Trp levels.

Results suggest that clinical outbreaks of A. pleuropneumoniae are unlikely to be caused only by spread of the pathogen by clinically diseased pigs.

The results indicates no evidence of infectivity of the PEDV RNA in the SDPP lot utilized.

Taken together, swab samples could be recommended as a pragmatic approach to sample fallen wild boar.

Pigs can readily induce adaptive mutational changes to a precursor pandemic-like virus to transform it into a highly virulent and infectious form akin to that of the pandemic H1N1/2009 virus.

Data on this article provide proof of concept that contaminated feed pellets (complete feed) can serve as a vehicle for PEDV infection of naïve pigs using natural feeding behavior.

The authors have demonstrated that PEDV can become airborne, remain infectious while suspended in the air, and that PEDV genetic material can be transported long distances following natural infections.

This benefit for the offspring highlights the potential of oral immunisation of sows against C. suis as a possible passive vaccination strategy for new born piglets against this important pathogen.

These results provide practical information for treatment of M hyorhinis infection in pigs.

The presence of pathogens in feral pigs in such close proximity to commercial piggeries could pose a biosecurity risk.

The aim of the present study was to determine risk factors for lameness development within the first days of group-housing, with a focus on housing conditions, management and post-mixing aggression in sows.

The survival of A. pleuropneumoniae was investigated under controlled laboratory conditions.

The goals of this study were to characterize influenza infections in Minnesota pigs and assess biosecurity measures used by swine workers.

Vaccination may affect strain diversity and immune escape through recombination and point mutation.

The findings demonstrate strong association between heavy metal tolerance and antimicrobial resistance, particularly among Salmonella serotypes important in public health.

These findings illustrate the importance of maternal infection, despite robust anti-PCV2 immunity, in early infection of newborn piglets.

Factors related to external and internal biosecurity and to the control of inside climatic conditions should be considered together when implementing programmes to better control SIV infections.

The total prevalence of PToV was 45% (9 out of 20 farms); it was the first detection of PToV in China.

A pre-infection of SJPL and PAM cells with App blocked completely PRRSV infection.

A review published by researchers of CReSA provides an overview of the current knowledge of virulence factors of H. parasuis.

The objective of this study was to evaluate the effect of porcine circovirus type 2 (PCV2) vaccines on PCV2-viremic and -seropositive piglets born from naturally PCV2-infected sows against postnatal PCV2 challenge.

New Neonatal Porcine Diarrhoea Syndrome (NNPDS) is a newly defined syndrome, characterized by a treatment-refractory diarrhoea during the first days of life.

These studies demonstrate for the first time, to our knowledge, that a protein can function as a transactivator of ribosomal frameshifting.

Sampling breeding herds and suckling-age piglets could serve as a valuable alternative to traditional surveillance schemes.