Figure 1.

Flow diagram indicating the number of citations and publications included and excluded in each level of the systematic review on temperament of dairy cows and milk yield and milk quality, adapted from PRISMA guidelines (Page et al. 2021). All search results are included in the diagram to allow a better understanding of the total number of records found. ^*Data from both procedures (milk yield and milk quality) are presented in the flow diagram to allow the researchers to update the same systematic review.