Antimicrobial use and decision making with respect to treatment of diarrhea in Canadian dairy calves.

dc.contributor.authorUyama, T.
dc.contributor.authorKelton, D.
dc.contributor.authorLeBlanc, S.
dc.contributor.authorLéger, D.
dc.contributor.authorDufour, S.
dc.contributor.authorRoy, J.
dc.contributor.authorBarkema, H.
dc.contributor.authorde Jong, E.
dc.contributor.authorMcCubbin, K.
dc.contributor.authorFonseca, M.
dc.contributor.authorHeider, L.
dc.contributor.authorRenaud, D.
dc.date.accessioned2020-08-24T14:43:38Z
dc.date.available2020-08-24T14:43:38Z
dc.date.copyright20-Jun
dc.date.created20-Jun
dc.date.issued20-Jun
dc.degree.departmentDairy at Guelphen
dc.degree.departmentDepartment of Population Medicineen
dc.descriptionOral Presentation at the 2020 ADSA Annual Meeting (online).en
dc.description.abstractAntimicrobial resistance in livestock is a growing concern due to possible transmission to humans so it is important to understand antimicrobial use in farm animals. Dairy calves may receive antimicrobials for the treatment of diarrhea, but it is unclear under what circumstances antimicrobials are used. The objective of this study is to investigate antimicrobial use and case-specific information used in treating diarrhea in Canadian dairy calves. A total of 105 dairy farmers (Ontario: 31; Alberta: 28; British Columbia: 26; Nova Scotia: 20) were selected purposively and completed a questionnaire in person about calf health. First, farmers were asked, “Do you use antimicrobials to treat calf diarrhea?” Second, only those who used antimicrobials to treat diarrhea were asked, “What case-specific information do you use to select a diarrhea case for antimicrobial treatment?” Respondents were instructed to select all that apply from a list of 4 symptoms (fecal consistency, fever, attitude, level of dehydration) or otherwise specified. The average herd size was 162 milking cows (range 36–560). Among 105 farmers, 72% used antimicrobials to treat diarrhea. Among those who used antimicrobials for diarrhea, 78% used “fecal consistency,” 61% used “fever,” 55% used “attitude,” 53% used “level of dehydration,” and 28% used 11 other characteristics as indicators to treat diarrhea with antimicrobials. The most common answer was selecting all 4 symptoms given, which was selected by 20% of those who used antimicrobials to treat diarrhea. Among 59 farmers who used fecal consistency as an indicator to treat diarrhea with antimicrobials, only 15% solely used this criterion. Among 91 farmers who were asked whether they had a written treatment protocol for calf diarrhea, 35% reported that they have the protocol and 94% of them were discussed with veterinarians. Treatment decisions could be improved for those who solely depend on fecal consistency as an indicator to treat diarrhea with antimicrobials, as well as developing protocols with a veterinarian, to encourage prudent use of antimicrobials in dairy calves.en_US
dc.description.sponsorshipDairy Research Cluster 3 - Canada, Dairy Farmers of Ontarioen_US
dc.identifier.citationT. Uyama, et al. Antimicrobial use and decision making with respect to treatment of diarrhea in Canadian dairy calves. J. Dairy Sci. 103 (Suppl. 1). p. 88, 231, 2020.
dc.identifier.urihttps://hdl.handle.net/10214/19275
dc.language.isoenen_US
dc.publisher2020 American Dairy Science Association® Annual Meetingen_US
dc.relation.ispartofseriesDaG_ADSA2020;07
dc.rightsThis material is for personal viewing only. The corresponding author's explicit authorization is mandatory for any other use, unless another statement attached to a specific document clearly states a different level of permission.
dc.rights.licenseAll items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.
dc.subjectdairy calfen_US
dc.subjecttreatment protocolen_US
dc.subjectcase-specific informationen_US
dc.titleAntimicrobial use and decision making with respect to treatment of diarrhea in Canadian dairy calves.en_US
dc.typePresentationen
dc.typeVideoen

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