Renal Stephanuriasis: Gross and microscopic findings in naturally-infected pigs from St. Kitts, West Indies

ABSTRACT Stephanurus dentatus, the kidney worm of swine, is an important nematode parasite in outdoor swine populations worldwide. Infection is most common in tropical and subtropical areas and results in decreased weight gain and condemnation of edible parts invaded by migrating larvae. Worms reach...

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Autores principales:	Morosco,Danielle, Illanes,Oscar, Fuentealba,Carmen
Lenguaje:	English
Publicado:	Universidad Austral de Chile. Facultad de Ciencias Veterinarias 2017
Materias:	kidney worm pigs Stephanurus dentatus ureter St. Kitts
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-81322017000100110
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spelling	oai:scielo:S0719-813220170001001102019-11-28Renal Stephanuriasis: Gross and microscopic findings in naturally-infected pigs from St. Kitts, West IndiesMorosco,DanielleIllanes,OscarFuentealba,Carmen kidney worm pigs Stephanurus dentatus ureter St. Kitts ABSTRACT Stephanurus dentatus, the kidney worm of swine, is an important nematode parasite in outdoor swine populations worldwide. Infection is most common in tropical and subtropical areas and results in decreased weight gain and condemnation of edible parts invaded by migrating larvae. Worms reach sexual maturity within nodules at the peri-ureteral fat which communicate with the ureter and eggs are eliminated in the urine. At the St.Kitts abattoir, the kidneys of 10 pigs with gross lesions of stephanuriasis were examined microscopically. Parasitic tracts surrounded by areas of hemorrhage and inflammation were present in the fibro-adipose tissue around the ureters, renal pelvis and, rarely, within the renal parenchyma. Morulated eggs were found within nodules containing encysted worms. Due to the lengthy development of the parasite within the definite host, the finding of patent stephanuriasis in slaughterhouse pigs is unusual and likely the result of poor local management practices which lead to reduced weight gains, delays in the attainment of market weight and the frequent slaughtering of one year old pigs.info:eu-repo/semantics/openAccessUniversidad Austral de Chile. Facultad de Ciencias VeterinariasAustral journal of veterinary sciences v.49 n.1 20172017-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-81322017000100110en10.4067/s0719-81322017000100053
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	kidney worm pigs Stephanurus dentatus ureter St. Kitts
spellingShingle	kidney worm pigs Stephanurus dentatus ureter St. Kitts Morosco,Danielle Illanes,Oscar Fuentealba,Carmen Renal Stephanuriasis: Gross and microscopic findings in naturally-infected pigs from St. Kitts, West Indies
description	ABSTRACT Stephanurus dentatus, the kidney worm of swine, is an important nematode parasite in outdoor swine populations worldwide. Infection is most common in tropical and subtropical areas and results in decreased weight gain and condemnation of edible parts invaded by migrating larvae. Worms reach sexual maturity within nodules at the peri-ureteral fat which communicate with the ureter and eggs are eliminated in the urine. At the St.Kitts abattoir, the kidneys of 10 pigs with gross lesions of stephanuriasis were examined microscopically. Parasitic tracts surrounded by areas of hemorrhage and inflammation were present in the fibro-adipose tissue around the ureters, renal pelvis and, rarely, within the renal parenchyma. Morulated eggs were found within nodules containing encysted worms. Due to the lengthy development of the parasite within the definite host, the finding of patent stephanuriasis in slaughterhouse pigs is unusual and likely the result of poor local management practices which lead to reduced weight gains, delays in the attainment of market weight and the frequent slaughtering of one year old pigs.
author	Morosco,Danielle Illanes,Oscar Fuentealba,Carmen
author_facet	Morosco,Danielle Illanes,Oscar Fuentealba,Carmen
author_sort	Morosco,Danielle
title	Renal Stephanuriasis: Gross and microscopic findings in naturally-infected pigs from St. Kitts, West Indies
title_short	Renal Stephanuriasis: Gross and microscopic findings in naturally-infected pigs from St. Kitts, West Indies
title_full	Renal Stephanuriasis: Gross and microscopic findings in naturally-infected pigs from St. Kitts, West Indies
title_fullStr	Renal Stephanuriasis: Gross and microscopic findings in naturally-infected pigs from St. Kitts, West Indies
title_full_unstemmed	Renal Stephanuriasis: Gross and microscopic findings in naturally-infected pigs from St. Kitts, West Indies
title_sort	renal stephanuriasis: gross and microscopic findings in naturally-infected pigs from st. kitts, west indies
publisher	Universidad Austral de Chile. Facultad de Ciencias Veterinarias
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-81322017000100110
work_keys_str_mv	AT moroscodanielle renalstephanuriasisgrossandmicroscopicfindingsinnaturallyinfectedpigsfromstkittswestindies AT illanesoscar renalstephanuriasisgrossandmicroscopicfindingsinnaturallyinfectedpigsfromstkittswestindies AT fuentealbacarmen renalstephanuriasisgrossandmicroscopicfindingsinnaturallyinfectedpigsfromstkittswestindies
_version_	1714207267598893056

Renal Stephanuriasis: Gross and microscopic findings in naturally-infected pigs from St. Kitts, West Indies

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