Thermal and Mechanical Nociception Threshold Tests as Objective Tools to Measure Painful and Non-Painful Lameness Phases in Multiparous Sows Karriker, Locke Johnson, Anna Mohling, Caroline Johnson, Anna Stalder, Kenneth Abell, Caitlyn Stalder, Kenneth Karriker, Locke Coetzee, Johann Millman, Suzanne 2018-08-25T18:52:42.000 2020-06-29T23:35:21Z 2020-06-29T23:35:21Z Wed Jan 01 00:00:00 UTC 2014 2014-02-10 2014-01-01
dc.description.abstract <p>The objective of this study was to quantify differences in thermal and mechanical nociception thresholds when sows are in painful and non-painful lameness states. Twelve, clinically healthy, mixed-parity, crossbred sows were used for each of the nociceptive threshold tests. The sow was the experimental unit and a cross-over design with a 2 (left and right hind limb) x 3 (days: D-1, D+1 and D+6) factorial arrangement of treatments were compared. On induction day (D0), 10 mg of amphotericin B were injected in the distal interphalangeal joint space in both claws of one hind limb. All sows served as their own control and treatment. After completion of the first round, sows were given a 7-d rest period and then the round was repeated with the opposite hind limb induced. All data were statistically analyzed using the PROC MIXED procedure in SAS. A P value of ≤ 0.05 was considered to be significant. No differences were observed for sows that had lameness induced in the left- vs. right hind limb for either the thermal (P = 0.68) or mechanical (P = 0.97) threshold tests. There were also no differences between first and second rounds of induction for the thermal (P = 0.18) or mechanical (P= 0.28) threshold tests. For the thermal nociceptive tests, there was a significant difference for the induced limb when comparing D-1 and D+1 (P < .0001), indicating the lame hind limb tolerated less thermal nociception when in a most lame phase. Similarly, mechanical pressure tolerated by the lame hind limb decreased for every landmark (P < 0.05) when comparing D-1 and D+1. Both tools showed a decreased tolerance of mechanical and thermal stimulation when in a most lame phase, indicating potential for limb lameness detection in sows.</p>
dc.identifier archive/
dc.identifier.articleid 2022
dc.identifier.contextkey 5092240
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ans_air/vol660/iss1/78
dc.language.iso en
dc.relation.ispartofseries Animal Science Research Reports
dc.relation.ispartofseries ASL R2913
dc.source.bitstream archive/|||Sat Jan 15 01:53:52 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Animal Sciences
dc.subject.disciplines Large or Food Animal and Equine Medicine
dc.subject.keywords Animal Science
dc.subject.keywords Veterinary Diagnostic and Production Animal Medicine
dc.title Thermal and Mechanical Nociception Threshold Tests as Objective Tools to Measure Painful and Non-Painful Lameness Phases in Multiparous Sows
dc.type article
dc.type.genre swine
dspace.entity.type Publication
relation.isAuthorOfPublication cdddf686-265a-41eb-9374-c5ff25e5120d
relation.isAuthorOfPublication 9459ddeb-303d-4035-933f-925ec181c7a6
relation.isAuthorOfPublication 0b0a34a3-f123-4f94-a9cf-e730cb2183a6
relation.isJournalIssueOfPublication 7e474e6a-85cb-446c-9f53-8afe83d5a741
relation.isSeriesOfPublication 7f3839b7-b833-4418-a6fa-adda2b23950a
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