Fertility Rates of Ewes Treated with Medroxyprogesterone and Injected with Equine Chorionic Gonadotropin plus Human Chorionic Gonadotropin in Anoestrous Season

Table 1

Performance of the Texel ewes fertility in out-of-season ($\text{means}\pm \text{standard}$ deviation and percentages).

Parameters	Treatment (Group)
	MAP + Saline (G1)	MAP + eCG (G2)	MAP + eCG + hCG (G3)
Ewes exposed	30	30	30
Estrous (%)^1	22 (73.33)${}^{\text{b}}$	27 (90.00)${}^{\text{a}}$	26 (86.66)${}^{\text{a}}$
Estrous onset after sponges withdrawal h ($\pm$)^2	27.06 (17.46)${}^{\text{b}}$	37.76 (13.39)${}^{\text{a}}$	40.83 (23.45)${}^{\text{c}}$
Estrous duration h (±)	22.93 (14.26)	26.46 (9.36)	21.13 (9.93)
Corpora lutea/Group ($\pm$)	23.80 (14.32)	28.97 (10.41)	19.31 (10.02)
Pregnancy rate (%)	21 (70.00)${}^{\text{ab}}$	26 (86.66)${}^{\text{a}}$	17 (56.66)${}^{\text{b}}$
Twin lambing (%)	3 (10.00)${}^{\text{b}}$	10 (33.33)${}^{\text{a}}$	0
Lamb (%)	24 (80.00)${}^{\text{b}}$	36 (120.00)${}^{\text{a}}$	17 (56.66)${}^{\text{c}}$

${}^{\text{a},\mathrm{\hspace{0.17em}\hspace{0.17em}}\text{b},\mathrm{\hspace{0.17em}\hspace{0.17em}}\text{c}}$means in the same line, with different superscripts indicate significant difference ($P<.05$).
${}^1$Percentages.
${}^2$Means and standard deviation.