Table 1.

Mares’ characteristics at embryo collection time

Characteristics	Young mares (YM) (n = 11)		Old mares (OM) (n = 20)
	Total	With embryo (n = 5)	Total	With embryo (n = 6)
Breed	AA n = 9; SF n = 1; SB n = 1	AA	AA n = 13; SF n = 7	AA n = 4; SF n = 2
Age (in years)	6.00 ± 0.00	6.00 ± 0.00	11.95 ± 2.11	12.00 ± 2.90
Parity (number of foalings)	1.00 ± 0.00	1.00 ± 0.00	3.20 ± 1.15	3.17 ± 1.47
Weight (in kg)	536.62 ± 44.12	524.02 ± 61.39	589.35 ± 57.34	598.19 ± 76.83
BCS (scale 1–5)	2.16 ± 0.28	2.3 ± 0.33	2.61 ± 0.32	2.5 ± 0.59
Withers’ height (in cm)	157.95 ± 3.74	157.40 ± 5.41	161.21 ± 4.23	162.00 ± 6.16

All mares were multiparous

AA Anglo Arab or Anglo-Arabian type, SF Selle Français, SB Saddlebred, BCS Body Condition Score. Age, parity, weight, BCS and height are presented as mean ± SD