High anti-Ascaris seroprevalence in fattening pigs in Sichuan, China, calls for improved management strategies.
Animals
Antibodies, Helminth
/ blood
Ascariasis
/ epidemiology
Ascaris suum
/ isolation & purification
China
/ epidemiology
Disease Management
Farms
Food Industry
Liver
/ parasitology
Pork Meat
/ parasitology
Seroepidemiologic Studies
Serologic Tests
Swine
/ parasitology
Swine Diseases
/ epidemiology
As-Hb-based ELISA
Ascaris suum
Pig
Serodiagnosis
Seroprevalence
Journal
Parasites & vectors
ISSN: 1756-3305
Titre abrégé: Parasit Vectors
Pays: England
ID NLM: 101462774
Informations de publication
Date de publication:
12 Feb 2020
12 Feb 2020
Historique:
received:
18
11
2019
accepted:
03
02
2020
entrez:
14
2
2020
pubmed:
14
2
2020
medline:
25
9
2020
Statut:
epublish
Résumé
Ascariasis, caused by Ascaris suum, is an important soil-transmitted parasitic disease of pigs worldwide. It leads to significant economic losses in the pork industry, as a consequence of low feed conversion efficiency in pigs and liver condemnation at slaughter. Despite ascariasis still being widespread on pig farms in many developing and the industrialised countries, there are surprisingly limited data on porcine ascariasis in China, where nearly half of the world's total pork is produced. In the present study, using the recently developed A. suum-haemoglobin (As-Hb) antigen-based serological test, we screened 512 individual serum samples from fattening pigs from 13 farms across seven distinct locations of Sichuan Province in China for anti-Ascaris antibody. The prevalence of anti-Ascaris antibody ranged from 0% to 100% on the distinct farms, with the mean (overall) seroprevalence being > 60%. There was no significant difference in seroprevalence between the intensive and extensive farms. To our knowledge, this is the first study to measure anti-Ascaris seroprevalence in China. The results of this 'snapshot' investigation indicate that Ascaris infection in commercial pig farms in Sichuan Province is seriously underestimated, encouraging future, large-scale serological studies to assess the distribution and extent of Ascaris exposure and infection in various regions of China and the world.
Sections du résumé
BACKGROUND
BACKGROUND
Ascariasis, caused by Ascaris suum, is an important soil-transmitted parasitic disease of pigs worldwide. It leads to significant economic losses in the pork industry, as a consequence of low feed conversion efficiency in pigs and liver condemnation at slaughter. Despite ascariasis still being widespread on pig farms in many developing and the industrialised countries, there are surprisingly limited data on porcine ascariasis in China, where nearly half of the world's total pork is produced.
METHODS
METHODS
In the present study, using the recently developed A. suum-haemoglobin (As-Hb) antigen-based serological test, we screened 512 individual serum samples from fattening pigs from 13 farms across seven distinct locations of Sichuan Province in China for anti-Ascaris antibody.
RESULTS
RESULTS
The prevalence of anti-Ascaris antibody ranged from 0% to 100% on the distinct farms, with the mean (overall) seroprevalence being > 60%. There was no significant difference in seroprevalence between the intensive and extensive farms.
CONCLUSIONS
CONCLUSIONS
To our knowledge, this is the first study to measure anti-Ascaris seroprevalence in China. The results of this 'snapshot' investigation indicate that Ascaris infection in commercial pig farms in Sichuan Province is seriously underestimated, encouraging future, large-scale serological studies to assess the distribution and extent of Ascaris exposure and infection in various regions of China and the world.
Identifiants
pubmed: 32051006
doi: 10.1186/s13071-020-3935-4
pii: 10.1186/s13071-020-3935-4
pmc: PMC7017502
doi:
Substances chimiques
Antibodies, Helminth
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
60Subventions
Organisme : Department of Science and Technology of Sichuan Province
ID : 2014HH0047
Références
Vet Parasitol. 2019 Apr;268:67-72
pubmed: 30981308
Adv Parasitol. 2001;48:285-375
pubmed: 11013758
J Comp Pathol. 2001 Feb-Apr;124(2-3):200-6
pubmed: 11222018
Vet Parasitol. 2015 Jun 15;210(3-4):151-8
pubmed: 25952722
Vet Parasitol. 1994 Aug;54(1-3):69-85
pubmed: 7846873
Res Vet Sci. 2011 Dec;91(3):e121-4
pubmed: 21349561
Vet Parasitol. 2012 Oct 26;189(2-4):267-73
pubmed: 22560331
J Helminthol. 2000 Mar;74(1):45-52
pubmed: 10831052
Vet Parasitol. 2005 Feb 28;127(3-4):333-6
pubmed: 15710534
Vet Parasitol. 2017 Dec 15;248:33-38
pubmed: 29173538
J Anim Sci. 1985 Jan;60(1):220-5
pubmed: 3972742
Parasitology. 2014 Dec;141(14):1904-11
pubmed: 24775944
Vet Parasitol. 2015 Sep 15;212(3-4):460-4
pubmed: 26324243
PLoS One. 2015 Jul 31;10(7):e0133381
pubmed: 26230336