Figures & data
Table 1. Descriptive statistics of the comparison lame versus nonlame dairy cows for the five parameters considered for the meta-analysis (data from the 31 selected research papers).
Figure 1. Forest plots of the five considered parameters: (a) eating time (min/day); (b) lying bout duration (min/bout); (c) lying bouts (n/day); (d) lying time (min/day); (e) milk yield (kg/day). The blue boxes represent the relative contribution of each study to the summary pooled standardised mean difference (SMD). The pooled SMD value was represented using a light blue diamond that fixes the location of the estimated effect and which width reflects the estimate’s precision.
![Figure 1. Forest plots of the five considered parameters: (a) eating time (min/day); (b) lying bout duration (min/bout); (c) lying bouts (n/day); (d) lying time (min/day); (e) milk yield (kg/day). The blue boxes represent the relative contribution of each study to the summary pooled standardised mean difference (SMD). The pooled SMD value was represented using a light blue diamond that fixes the location of the estimated effect and which width reflects the estimate’s precision.](/cms/asset/c1ebac79-7148-488e-b6df-3cd6f5759031/tjas_a_2241870_f0001_c.jpg)
Figure 2. Pooled standardised mean difference (pooled SMD) with 95% confidence intervals of the five parameters considered for the comparison lame versus nonlame dairy cows. Negative values are represented by red bars and positive values by green bars in the histogram.
![Figure 2. Pooled standardised mean difference (pooled SMD) with 95% confidence intervals of the five parameters considered for the comparison lame versus nonlame dairy cows. Negative values are represented by red bars and positive values by green bars in the histogram.](/cms/asset/eb35f6ae-072b-4ef7-bfa8-591023236d2f/tjas_a_2241870_f0002_c.jpg)
Table 2. Meta-analysis results of the effect of lameness on behavioural parameters and milk production.
Supplemental Material
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The data that support the findings of this study are available from the corresponding author, Cozzi G., upon reasonable request.