Table 2.

Ontogeny of dry mass (mg) and calcium mass (mg) in eggs of viviparous Lacerta (Zootoca) vivipara

Yolk Embryo Eggshell
Embryonic stageNDry mass (mg)Calcium mass (mg)NDry mass (mg)Calcium mass (mg)NDry mass (mg)Calcium mass (mg)
Oviductal655.4±3.4*,a0.17±0.01*,a
Stage 30557.6±3.7a0.14±0.01a51.5±2.4a0.004±0.05a50.8±0.2a0.08±0.03a
Stage 32454.6±4.2a0.16±0.02a42.4±2.7a0.006±0.05a41.0±0.3a0.08±0.04a
Stage 34463.1±4.1a0.16±0.02a43.7±2.7a0.008±0.05a40.8±0.3a0.13±0.04a,b
Stage 36450.5±4.2a0.12±0.02a47.6±2.7a0.03±0.05a41.1±0.3a0.24±0.04a,b
Stage 40618.0±3.4b0.03±0.01b632.4±1.8b0.46±0.04b61.6±0.2a0.24±0.03b
Hatchling940.2±1.6c0.65±0.03c
  • Sample sizes are number of females (clutches)

    Values reported as least squares means ± s.e.m.

  • * Values include eggshell

  • a—d Comparisons within columns, values with the same letter denotation do not differ significantly (P≤0.05)