Porcine non-conventional B-1-like cells are a potent source of -binding IgM.

Introduction: serotype () 2 is an important bacterial pathogen in piglet nurseries and an emerging zoonotic agent without effective vaccines available. Immunoglobulin (Ig)M plays an essential role in host defense against . In mice, non-conventional B-1 cells are a major source of protective IgM against encapsulated bacterial pathogens, such as .

A single, episodic event of unilateral/bilateral scrotal swelling in a group of adult boars at an Austrian boar stud.

Background: Scrotal swelling is a clinical situation which can be caused by different aetiologies. In this case report, we describe a multi-week episode of unilateral and bilateral scrotal swelling in boars at an Austrian boar stud and its diagnostic work-up.

Case Presentation: In the summer of 2020, the herd veterinarian of an Austrian boar stud reported that over a period of six weeks, five out of 70 boars presented with unilateral severe swelling of the left scrotum and three out of 70 boars with bilateral severe swelling of the left and moderate swelling of the right scrotum, respectively.

Reproductive health of the sow during puerperium.

The modern hyperprolific sow is susceptible to metabolic disease and chronic inflammation. The most sensitive phase is parturition, when the sow experiences systemic inflammation and stress, and major changes in metabolism and endocrinology. Resolution of inflammation and stress needs to happen quickly to ensure good reproductive health during puerperium.

The mycotoxin deoxynivalenol (DON) can deteriorate vaccination efficacy against porcine reproductive and respiratory syndrome virus (PRRSV) at subtoxic levels.

Background: Feedgrain contamination with mycotoxins, including deoxynivalenol (DON, "vomitoxin") is relatively frequently encountered. Pigs are particularly sensitive to the toxicity of DON. To assess the interplay between DON and porcine reproductive and respiratory syndrome virus (PRRSV), we performed an experimental DON exposure-PRRSV vaccination-challenge infection trial.

[Continuous, subjective sonographic grayscale analysis of uterine involution in sows during the postpartum period].

Objective: The aim of this study was to analyse the continuous and subjective evaluation of echogenicity, echotexture of the puerperal uterus as well as the presence of intrauterine fluid in sows of differing parity stages. The goal was to determine associations between grayscale values and simultaneously assessed uterine diameter, body condition, and additional performance parameters such as farrowing duration, placenta expulsion duration, placenta weight and litter weight.

Material And Methods: The study population included 95 sows housed either in free farrowing (n = 46) or crated (n = 49) stables.