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Special Issue "Infectious Disease Control in Swine in Different Husbandry Systems"

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Guest Editor

Field Station for Epidemiology, University of Veterinary Medicine Hannover, Foundation, 49456 Bakum, Germany
Interests: swine diseases; diagnostic tools; Actinobacillus pleuropneumoniae; herd health management; biosecurity; consumer protection; welfare; antimicrobial resistance

Dr. Alexandra von Altrock

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Guest Editor

Clinic for Swine and Small Ruminants, Forensic Medicine and Ambulatory Service, University of Veterinary Medicine Hannover, Foundation, 30173 Hannover, Germany
Interests: zoonotioc disease; Campylobacter spp; Salmonella spp.; Yersinia spp.; swine; diseases; welfare; surgical castration

Special Issue Information

Summary: Diseases have a major impact on swine welfare, thus, appropriate disease-preventive measures will inevitabely strengthen swine wellbeing. Prevention of diseases also has a basis in consumer protection, which is impacted by antimicrobial-resistant bacteria, drug residuals and emerging, re-emerging or zoonotic pathogens. Changing husbandry systems can result in increased or reduced prevalences of pathogens, and can influence animal welfare and sustainability. Key elements to be considered are feeding, management and external and internal biosecurity. This Special Issue will focus on specific aspects of different husbandry and feeding systems that influence the introduction and/or further spread of pathogens within swine farms. We invite original research papers and meta-analyses focusing on aspects of husbandry systems that prevent the development and spread of infectious diseases, as well as on identification of potential risk factors arising from the environment, feeding and management.

Prof. Dr. Isabel Henning-Pauka
Dr. Alexandra von Altrock
Guest Editors

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Keywords

epidemiology
prevalence
microorganisms
toxins
hygiene
biosecurity
sustainability
transmission
environmental factors
climate
feed

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Research

Open AccessArticle

Measurement of Calprotectin (S100A8/A9) in the Saliva of Pigs: Validation Data of A Commercially Available Automated Assay and Changes in Sepsis, Inflammation, and Stress

María José López-Martínez

Silvia Martínez-Subiela

Edgar García Manzanilla

Peter David Eckersall

Fernando Tecles

Damián Escribano

and

Alberto Muñoz-Prieto

Animals 2023, 13(7), 1190; https://doi.org/10.3390/ani13071190 - 29 Mar 2023

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Abstract

Calprotectin (CALP, S100A8/A9), also named myeloid-related protein 8/14, is a dimer complex of S100A8 and S100A9 that belongs to the S-100 protein family. It is involved in inflammation and has a wide range of proinflammatory functions, such as cytokine production and regulation of leukocyte adhesion, migration, and phagocytosis. In humans, CALP traditionally can be measured in faeces, serum, and saliva as a biomarker of inflammation and sepsis. The objective of this study was to validate an automated assay for CALP measurements in the saliva of pigs, having the advantage of the use of a non-invasive sample that is easy to collect. The assay was precise and accurate. CALP in saliva measured by this assay showed significant changes depending on the hour of the day. It also showed significant increases in the saliva of pigs after the administration of lipopolysaccharide (LPS), and showed a rise, although with increases of lower magnitude, after a stressful stimulus. Further studies should be made to gain knowledge about the possible practical applications of the measurements of CALP in the saliva of pigs as a biomarker to evaluate the animals’ health and welfare. Full article

(This article belongs to the Special Issue Infectious Disease Control in Swine in Different Husbandry Systems)

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Open AccessArticle

Sock and Environmental Swabs as an Efficient, Non-Invasive Tool to Assess the Salmonella Status of Sow Farms

Kathrin Lillie-Jaschniski

and

Animals 2023, 13(6), 1031; https://doi.org/10.3390/ani13061031 - 11 Mar 2023

Viewed by 752

Abstract

Salmonellosis is the second most reported gastrointestinal infection in humans after campylobacteriosis and a common cause of foodborne outbreaks in the European Union (EU). In addition to consumption of contaminated animal-based foods, such as poultry, beef and eggs, pork is an important source of human salmonellosis outbreaks; therefore, Salmonella (S.) control should start in the early stages of pig production. To be able to implement effective control measures to reduce the risk of pigs being infected by Salmonella, it is important to identify the serovars circulating on farm within the different stages of production, including as early as sow and piglet breeding. The aim of the present study was to assess the Salmonella status of sow farms either producing their own finishers or delivering piglets to fattening farms with a known high serological prevalence identified within the QS Salmonella monitoring system. Overall, 97 (92.4%) of 105 investigated piglet-producing farms across Germany tested positive in at least one sample. Salmonella was detected in 38.2% of the sock and 27.1% of the environmental swab samples. S. Typhimurium was the most frequent serovar. In conclusion, sock and environmental swab samples are well suited for non-invasive Salmonella detection in different production units in farrowing farms. To establish a holistic Salmonella control program, all age classes of pig production should be sampled to enable intervention and implementation of countermeasures at an early stage if necessary. Full article

(This article belongs to the Special Issue Infectious Disease Control in Swine in Different Husbandry Systems)

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Special Issue "Infectious Disease Control in Swine in Different Husbandry Systems"

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