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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.

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.