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Table 2 Comparison of fecal hormone metabolites in female giant anteaters

From: Fecal estrogen, progestagen and glucocorticoid metabolites during the estrous cycle and pregnancy in the giant anteater (Myrmecophaga tridactyla): evidence for delayed implantation

  Animal ID
  Monita Emelia Lia Praim
P4 metabolites     
  Basal 19.4 ± 1.8 15.5 ± 2.3 20.9 ± 1.3 ND
  Luteal phase 136.8 ± 1.8 41.2 ± 5.1 57.5 ± 0.7 ND
  Pregnancy, primary rise ND 83.2 ± 4.3 62.2 ± 3.9 155.6 ± 16.6
  Pregnancy, secondary rise ND 540.6 ± 43.1 419.5 ± 61.1 467.0 ± 39.4
E1 metabolites     
  Basal 16.8 ± 1.1a 32.6 ± 8.0b 8.9 ± 1.4c ND
  Peak estrus 96.3 ± 20.3 121.1 ± 43.3 27.7 ± 7.1 15.6 (1 peak)
  Pregnancy ND 103.8 ± 6.4a 53.6 ± 5.1b 53.8 ± 6.7b
E2 metabolites     
  Basal 114.4 ± 3.7a 104.9 ± 5.9a 69.8 ± 7.5b ND
  Peak estrus 298.3 ± 36.3 283.6 ± 100.7 177.0 ± 28.8 112.0 (1 peak)
  Pregnancy ND 204.5 ± 11.4a 151.6 ± 11.3b 210.5 ± 16.9ab
GC metabolites     
  Estrous cycle 33.5 ± 0.9 ND ND ND
  Pregnancy, primary rise ND 52.7 ± 2.3a 33.2 ± 2.4b 36.8 ± 2.3b
  Pregnancy, secondary rise ND 70.4 ± 3.1a 90.0 ± 8.9b 55.8 ± 2.5a
  1. Data are shown as the mean ± SEM (ng/g). Monita: adult, n = 6 estrous cycles, no pregnancy during the study period; Emelia and Lia, 1 pregnancy; Praim, n = 0 observed estrous cycles; 1 pregnancy. ND = not determined in this study. Different letters indicated significant differences (p < 0.05) between animals for the corresponding parameter.