Fig. 9

Forest plot of showing the effect of adding fat to diets during late gestation and lactation on losses of sow body weight (kg) and backfat thickness (mm). Figure lists treatments in studies with treatment No. (Study), treatment group of fat-treatment or un-supplemented control (Experimental vs. Control), total observations (Total), mean of the treatment and standard deviation (Mean, SD), standardized mean difference (SMD), 95% confidence interval (95%-CI) and the weight accounting for the total statistics (weight). Test results for heterogeneity and overall fat supplementation effect are listed at lower left of each figure. P ≤ 0.10 was considered significant; 0.1 < P < 0.15 was considered a trend. A, Effect of adding fat on the alteration of sow body weight; B, Effect of adding fat on sow backfat thickness; C, Effect of adding fat in sow diets on the greatest body weight loss of sows.