Table 2 Pregnancy rates, as defined by the percentage of females becoming pregnant following surgical transfer into pseudopregnant foster mothers prepared via either sterile B6SPRTF1, surgically vasectomized or genetically sterile studs

From: Naturally sterile Mus spretus hybrids are suitable for the generation of pseudopregnant embryo transfer recipients

Facility

Transfer type

Pregnancy rate

Between group comparison

B6SPRTF1

Vasectomy

Tg(Prm1-eGFP)#Ltku

UoO

Uterine

75.0% (n = 44)

69.2% (n = 107)

–

Chi square of 0.54; P > 0.05

UoO

Oviduct

75.5% (n = 184)

83.1% (n = 154)

–

Chi square of 2.91; P > 0.05

MLC

Oviduct

63.2% (n = 299)

–

67.1% (n = 603)

Chi square of 1.35; P > 0.05

UoM

Oviduct

53.9% (n = 115)

68.2% (n = 44)

–

Chi square of 2.65; P > 0.05