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Supplementary data for: Randomized controlled trial assessing the effects of xylazine sedation in 2 to 6-week-old dairy calves disbudded with a cautery iron
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Reedman, Cassandra N.; Duffield, Todd F.; DeVries, Trevor J.; Lissemore, Kerry D.; Duncan, Ian J.; Winder, Charlotte B. — 2021-02-18 Data from various models as a part of a randomized controlled trial evaluating the effects of xylazine sedation for cautery disbudding in dairy calves. This data is from mixed linear (total daily milk consumption, haptoglobin concentrations, latency to drink milk following disbudding, average lying bout length and length time to perform the disbudding procedure), Poisson (entitled visits to the automated feeder and number of lying bouts) and negative binomial (unentitled visits to the automated feeder) models by time relative to disbudding, stratified by treatment group.
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Supplementary data for: Cross-sectional study of antimicrobial use and treatment decision making for pre-weaned Canadian dairy calves
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Uyama, Tamaki; Kelton, David F.; Morrison, Emma I.; de Jong, Ellen; McCubbin, Kayley D.; Barkema, Herman W.; Dufour, Simon; Sanchez, Javier; Heider, Luke C.; LeBlanc, Stephen J.; Winder, Charlotte B.; McClure, J T.; Renaud, David L. — 2021-08-12 The questionnaire aims to describe the herd demographics and antimicrobial use in calves on farms enrolled in the study. It highlights the case-specific indicators used by the dairy producers when they decide to treat calves with antimicrobials for diarrhea and respiratory disease.
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Supplemental data for: Characterising and describing the literature on the impacts of umbilical care on health outcomes and risk factors examined for umbilical health in intensively raised bovines: A scoping review.
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Van Camp, Matthew B.; Duffield, Todd F.; Gomez, Diego E.; Mcfarlane, William J.; Renaud, David L.; Winder, Charlotte B. — 2021-08-03 <p><b>Research abstract</b>:The objective of this scoping review was to describe and characterize the existing literature regarding umbilical health and identify current gaps in knowledge. Six databases were searched for relevant primary research. Eligible studies must have examined umbilical health in an intensively raised bovine population. There were 4,250 articles that fit within the search terms and had their title and abstracts screened by two independent reviewers for potential relevance. From these, 724 full text articles were then screened, with 150 articles meeting the review criteria for data extraction. Seventeen were classified as descriptive, 24 were clinical trials, and 109 were analytical observational studies. Umbilical outcomes evaluated in descriptive studies were omphalitis (n = 11), parasitic infections of the umbilicus (n = 5), and umbilical hernias (n = 2). Only one clinical trial (n = 1) examined treatment of navel infections, whereas the remainder evaluated management factors that could be used to prevent a navel health outcome (n = 23), which included umbilical infections (n = 17), navel myasis (n = 3), navel measurements (n = 5), umbilical hernias (n = 1), and umbilical edema (n = 1). Analytical observational studies included studies examining risk factors for umbilical health (n = 60) and studies examining umbilical health itself as a risk factor (n = 60). Studies examining risk factors for umbilical health classified their outcomes as umbilical infections (n= 28), 11 of which were undefined and one which defined as diagnosed by a veterinarian. Umbilical hernias (n=8), two of which were only defined as diagnosed by a veterinarian and one which diagnosed by the herd manager. The remaining umbilical outcomes included scoring the navel sheath/flap size (n = 16), navel myasis (n = 2), and measurements of the umbilicus (n = 6). Studies examining umbilical health as a risk factor defined the umbilical risk factors as umbilical infection (n=39) of which 13 were undefined, umbilical hernias (n=8) of which 4 were undefined (several articles examined both umbilical infections and hernias), navel dipping (n = 12), navel/sheath scores as part of conformation classification for breeding (n = 2), navel measurements (n = 3), and umbilical cord drying times (n = 2). This review highlights the areas in need of future umbilical health research such as clinical trials evaluating the efficacy of different treatments of umbilical infection. It also emphasizes the importance of future studies to clearly define umbilical health outcomes of interest.</p><p><b>Data description</b>:This supplementary document presents data aimed at describing and characterizing the existing literature regarding umbilical health in bovines. Literature was gathered using a pre-defined search strategy from 6 databases and underwent screening of title and abstracts followed by full texts. A total of 150 articles met the search criteria and were included in this review, of these, 17 were classified as descriptive studies, 24 were clinical trials, and 109 were analytical observational studies.</p>
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Supplementary material: Effect of a milk by-product based calf starter feed on dairy calf nutrient consumption, rumen development, and performance when fed different milk levels
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Parsons, Sarah D.; Steele, Michael A.; Leslie, Ken E.; Renaud, David L.; Reedman, Cassandra N.; Winder, Charlotte B.; DeVries, Trevor J. — 2021-10-18 The objective of this study was to determine the effect of a milk by-product based feed treatment compared to a conventional grain-based ration on feed intakes, rumen development, and growth of heifer calves fed two different levels of milk. This data is from mixed linear models, with the data presented for treatments separated by factor (milk treatment and feed treatment) rather than the treatment interactions.
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Supplemental data for: A survey of male and female dairy calf care practices and opportunities for change
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Wilson, Devon; Pempek, Jessica A.; Cheng, Ting-yu; Habing, Gregory; Proudfoot, Kathryn L.; Winder, Charlotte B.; Renaud, David L. — 2022-10-17 This is supplementary data for a paper titled "A survey of male and female dairy calf care practices and opportunities for change." The questionnaire aims to describe the herd and dairy farmer demographics and values of participants from Ontario and Atlantic Canada, along with their male and female calf care practices.
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Supplementary data for: Modifiable management practices to improve udder health in dairy cattle during the dry period and early lactation: a scoping review
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McMullen, Carrie K.; Sargeant, Jan M.; Kelton, David F.; Churchill, Katheryn J.; Cousins, Kineta S.; Winder, Charlotte B. — 2021-04-07 This supplementary data file supports a scoping review that aimed to characterize all available literature on modifiable management practices used during the dry period that have been evaluated for their impact on udder health in dairy cattle, both during the dry period and the subsequent lactation. The dataset includes 229 articles that described a dry-off modifiable management practice, that was not a teat sealant or antimicrobial product, to identify practices that can be used to improve udder health in dairy cows and support the judicious use of antimicrobials. This dataset also outlines risk period measurements found within eligible articles for each of the following outcomes: cure of existing intramammary infections (IMI), prevention of new IMI, risk of clinical mastitis, and prevalence of IMI. Risk period measures were a large source of between-article variation we identified.
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Ancillary analysis for: Relative efficacy of antimicrobial treatments in dairy cattle to cure existing intramammary infections: a systematic review and network meta-analysis (1990-2019)
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McMullen, Carrie K.; Sargeant, Jan M.; Kelton, David F.; O'Connor, Annette M.; Reedman, Cassandra N.; Hu, Dapeng; Glanville, Julie; Wood, Hannah; Winder, Charlotte B. — 2021-09-27 This data is an ancillary analysis conducted for the systematic review and network meta-analysis to investigate the relative efficacy of antimicrobials to cure existing intramammary infections in dry cows. This ancillary data was used to analyze the results of trials published between 1990 - 2019 because eradication programs for Streptococcus agalactiae, a bacterium very susceptible to penicillin products, were implemented in the 1980s and achieved low levels of this pathogen in dairy herds (Makovec and Ruegg, 2003; Keefe, 2012), such that penicillin products could have an inflated measure of cure of existing IMI within the network in studies prior to 1990. This analysis was not pre-specified in the protocol, nor did it provide inferences that differed from the full network meta-analysis.
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Supplementary data for: A cross-sectional study on antimicrobial use and calf management practices in Canadian pre-weaned dairy calves
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Uyama, Tamaki; Renaud, David L.; Morrison, Emma I.; McClure, J T.; LeBlanc, Stephen; Winder, Charlotte B.; de Jong, Ellen; McCubbin, Kayley D.; Barkema, Herman W; Dufour, Simon; Sanchez, Javier; Heider, Luke C.; Kelton, David F. — 2022-09-09 The supplementary figure shows the questionnaire used in the study. The supplementary tables describe the responses on calf management practices on Canadian dairy farms and univariable analysis of antimicrobial use and farm management practices.

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(Author: Winder, Charlotte B.)

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