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Nematode parasite eggs in pasture soils and pigs on organic farms in Sweden.

Lindgren, Kristina; Gunnarsson, Stefan; Höglund, Johan; Lindahl, Cecilia and Roepstorff, Allan (2019) Nematode parasite eggs in pasture soils and pigs on organic farms in Sweden. Organic Agriculture, 10 (3), pp. 289-300.

[thumbnail of Lindgren2020_Article_NematodeParasiteEggsInPastureS.pdf] PDF - English

Document available online at: https://link.springer.com/article/10.1007%2Fs13165-019-00273-3


The EU regulation for organic pig production requires outdoor access to promote the animal welfare. This may increase the risk of infection of the common pig parasites, Ascaris suum and Trichuris suis, because their eggs can survive for many years in the soil. The egg contamination of these parasites in outdoor areas with different managements and the faecal egg output from the pigs was investigated on 11 Swedish organic pig farms in 2008. We found eggs of A. suum and, to a minor extent, T. suis in the soil from outdoor areas, which had previously been used for pig rearing and/or for spreading of pig manure. Piglets and their dams were turned out on pastures included in a crop rotation, and these areas had a mean of 2500 A. suum and 40 T. suis eggs per kilogram soil. When the pigs were 12-week-old, the faecal egg counts (FECs) of A. suum were positively correlated with the egg concentration in pasture soils before pig turnout. The areas used by dry sows had a mean of 11,700 A. suum and 220 T. suis eggs per kilogram soil. The highest egg concentrations in the soil were found in areas, frequently used by pigs in the most recent years. To minimise pasture contamination with parasite eggs, it is advised to have a crop rotation system and to inactivate parasite eggs in pig manure before spreading it. Parasite control needs further development to protect suckling piglets from infections due to environmental parasite egg contamination.

EPrint Type:Journal paper
Keywords:swine; parasites; Ascaris suum; Trichuris suis
Agrovoc keywords:
pigs -> swine
organic production -> ecological production
Subjects: Animal husbandry > Production systems > Pigs
Research affiliation: Denmark > KU - University of Copenhagen > KU-LIFE - Faculty of Life Sciences
Sweden > RISE Research Institutes of Sweden
Sweden > Swedish University of Agricultural Sciences (SLU) > Department of Animal Environment and Health
Sweden > Swedish University of Agricultural Sciences (SLU) > Department of Biomedical Sciences and Veterinary Public Health
Deposited By: Gunnarsson, Dr Stefan
ID Code:40041
Deposited On:11 Jun 2021 08:48
Last Modified:11 Jun 2021 08:48
Document Language:English
Refereed:Peer-reviewed and accepted

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