<abstract xmlns="http://www.w3.org/1999/xhtml">

<sec id="j_jvetres-2021-0057_s_005">
<h3>Introduction</h3>
<p>Diarrhoea in growing-finishing pigs is a common problem of commercial pig farms. Among many causative factors, porcine circovirus type 2 (PCV2) is one considered an important pathogen in modern pig production. The aim of the study was to verify if PCV2 was responsible for antibiotic non-responsive diarrhoea and wasting in pigs.</p></sec>
<sec id="j_jvetres-2021-0057_s_006">
<h3>Material and Methods</h3>
<p>A total of 13 dead pigs aged between 12 and 15 weeks from three Polish farms with persistent herd symptoms suggestive of PCV2 infection were provided for evaluation. Sections of lymph nodes and intestines were analysed by <italic>in situ</italic> hybridization (ISH) for PCV2 and histopathological examination. Faeces and intestinal scrapings were tested for <italic>Lawsonia intracellularis</italic> and <italic>Brachyspira hyodysenteriae</italic> by real-time PCR and for parasitic infection by flotation and decantation.</p></sec>
<sec id="j_jvetres-2021-0057_s_007">
<h3>Results</h3>
<p>ISH and histopathological examination showed that all pigs were PCV2 systemic disease negative. Swine dysentery was confirmed by real-time PCR on two farms, and proliferative enteropathy on one farm. In histological examinations, erosions of the caecal and colonic mucosa were found, together with cysts and trophozoites of <italic>Balantidium coli</italic>. The protozoa were present in the intestinal lumen and mucosa. <italic>B. coli</italic> cysts were identified in faeces from all examined pigs.</p></sec>
<sec id="j_jvetres-2021-0057_s_008">
<h3>Conclusion</h3>
<p>These results suggest that monitoring of <italic>B. coli</italic> infections should be an additional measure of control and prevention of gastrointestinal tract disorders in modern swine husbandry.</p></sec></abstract>

Introduction
Diarrhoea in growing-finishing pigs is a common problem of commercial pig farms. Among many causative factors, porcine circovirus type 2 (PCV2) is one considered an important pathogen in modern pig production. The aim of the study was to verify if PCV2 was responsible for antibiotic non-responsive diarrhoea and wasting in pigs.

Material and Methods
A total of 13 dead pigs aged between 12 and 15 weeks from three Polish farms with persistent herd symptoms suggestive of PCV2 infection were provided for evaluation. Sections of lymph nodes and intestines were analysed by in situ hybridization (ISH) for PCV2 and histopathological examination. Faeces and intestinal scrapings were tested for Lawsonia intracellularis and Brachyspira hyodysenteriae by real-time PCR and for parasitic infection by flotation and decantation.

Results
ISH and histopathological examination showed that all pigs were PCV2 systemic disease negative. Swine dysentery was confirmed by real-time PCR on two farms, and proliferative enteropathy on one farm. In histological examinations, erosions of the caecal and colonic mucosa were found, together with cysts and trophozoites of Balantidium coli. The protozoa were present in the intestinal lumen and mucosa. B. coli cysts were identified in faeces from all examined pigs.

Conclusion
These results suggest that monitoring of B. coli infections should be an additional measure of control and prevention of gastrointestinal tract disorders in modern swine husbandry.

<italic>Balantidium coli</italic> in pig farms suspected of porcine circovirus type 2 (PCV2) associated enteritis

Journal of Veterinary Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

 in pig farms suspected of porcine circovirus type 2 (PCV2) associated enteritis

Introduction
Diarrhoea in growing-finishing pigs is a common problem of commercial pig farms. Among many causative factors, porcine circovirus type 2 (PCV2) is...

Balantidium coli in pig farms suspected of porcine circovirus type 2 (PCV2) associated enteritis

Article Category: Review article

Publié en ligne: 26 oct. 2021

Pages: 425 - 430

Reçu: 14 avr. 2021

Accepté: 13 oct. 2021

DOI: https://doi.org/10.2478/jvetres-2021-0057

Mots clés
pigs, diarrhoea, PCV2, farm water quality

© 2021 A. Szczotka-Bochniarz et al. published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1

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Balantidium coli in pig farms suspected of porcine circovirus type 2 (PCV2) associated enteritis

Article Category: Review article

Publié en ligne: 26 oct. 2021

Pages: 425 - 430

Reçu: 14 avr. 2021

Accepté: 13 oct. 2021

DOI: https://doi.org/10.2478/jvetres-2021-0057

Mots cléspigs, diarrhoea, PCV2, farm water quality

© 2021 A. Szczotka-Bochniarz et al. published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Mots clés
pigs, diarrhoea, PCV2, farm water quality