Figure 1.

Maternal high-energy feeding increased maternal body weight and backfat thickness gain and decreased fetal birth weight. (a, b) Maternal body weight and backfat thickness at day 60 of gestation, respectively. (c, d) Maternal body weight and body weight gain at day 110 of gestation, respectively. (e, f) Maternal backfat thickness and backfat thickness gain at day 110 of gestation. (g) Maternal backfat thickness at parturition day. (h) Maternal body mass index (BMI) of gilts at day 110 of gestation. (i) Piglet birth weight. (j) Relationship between maternal backfat thickness at day 110 of gestation and piglet birth weight. (k) Birth weight distribution of piglets. Data were analyzed by the chi-square test. (l, m) Placental weight and efficiency, respectively. L = lower-energy group, M = median-energy group, H = high-energy group. Values are mean ± SD (n = 11). Different letters indicate significant differences at P < 0.05.