Prevalence and chemical composition of uroliths in fattening pigs in Belgium.
concrements
slaughter pigs
sludge
urinary bladder
uroliths
Journal
Journal of animal physiology and animal nutrition
ISSN: 1439-0396
Titre abrégé: J Anim Physiol Anim Nutr (Berl)
Pays: Germany
ID NLM: 101126979
Informations de publication
Date de publication:
Nov 2019
Nov 2019
Historique:
received:
09
03
2019
revised:
02
07
2019
accepted:
03
07
2019
pubmed:
24
8
2019
medline:
24
4
2020
entrez:
24
8
2019
Statut:
ppublish
Résumé
The present study investigated the prevalence of uroliths in fattening pigs and assessed the composition of these urinary tract concrements. In total, 2,432 urinary bladders were sampled in the slaughterhouse and checked for abnormal content. Urinary samples were analysed microscopically, and samples of the urinary bladder wall were tested for histological signs of inflammation. The composition of the concrements was examined by infrared spectrophotometry. Macroscopic and microscopic abnormalities were detected in 8.4% and 52.8% of the samples respectively. Magnesium ammonium phosphate (struvite), calcium oxalate dihydrate (COD), calcium carbonate (calcite), calcium oxalate monohydrate (COM) and amorphous crystals were detected. Analysis of stones showed COD in all samples in different proportions. The calcium content of examined stones was always considerable (up to 34%), in contrast to the magnesium content which represented max 1.9%. Struvite was found in one third of the samples, but was never part of stones and grit. COD crystals were the second most common microscopic crystal. These COD crystals and some COD stones had a rectangular shape, and therefore, they can be harmful to the bladder mucosa. In conclusion, uroliths are present in a large proportion of male fattening pigs, and consequently, urinary concrements pose a life-threatening risk for urethra obstruction in male pigs. Further research is warranted to identify potential risk factors for urolithiasis and microscopic crystals.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1828-1836Informations de copyright
© 2019 Blackwell Verlag GmbH.
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