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Table 3 A comparison of ewe-related parameters, and estradiol/progesterone concentrations/ratios (at 24 h prior to transcervical embryo transfer (TCET) and at the time of TCET) between the penetrated and non-penetrated Rideau Arcott x Polled Dorset ewes

From: Induction of cervical dilation for transcervical embryo transfer in ewes

Variable/Group Penetrated (n = 7) Non-penetrated (n = 15)
  Treatment (n = 6) Control (n = 1) Treatment (n = 5) Control (n = 10)
  12-h (n = 2) 24-h (n = 4) 12-h (n = 1) 24-h (n = 0) 12-h (n = 3) 24-h (n = 2) 12-h (n = 5) 24-h (n = 5)
Age (days) 1524 ± 155 1391 ± 88
Weight (kg) 80.6 ± 3.1 80.0 ± 2.9
Breed (% Rideau Arcott) 58.1 ± 8.7 63.8 ± 4.1
Parity 2.3 ± 0.5 2.1 ± 0.3
Lifetime lamb production 5.0 ± 1.2 4.2 ± 0.7
Post-partum interval (d) 261 ± 20 354 ± 70
E 2 – 24 h prior (pg/ml) 2.0 ± 0.4 2.0 ± 0.2†
E 2 – 12 h prior (pg/ml) 1.6 ± 0.2 2.1 ± 0.3
E 2 – TCET (pg/ml) 1.6 ± 0.3 1.7 ± 0.2†
P 4 – 24 h prior (ng/ml) 2.8 ± 0.4§ 3.0 ± 0.3§‡
P 4 – 12 h prior (ng/ml) 3.3 ± 0.4 3.9 ± 0.3§
P 4 – TCET (ng/ml) 3.8 ± 0.5§ 3.8 ± 0.3‡
E 2 : P 4 – 24 h prior 0.9 ± 0.3† 0.8 ± 0.1•
E 2 : P 4 – 12 h prior 0.6 ± 0.1 0.6 ± 0.1
E 2 : P 4 – TCET 0.5 ± 0.09† 0.5 ± 0.1•
  1. Within columns, a significant difference (p < 0.05) exists between the two values denoted by the same symbols: †§‡•.