Fig. 1From: Efficient production of pronuclear embryos in breeding and nonbreeding season for generating transgenic sheep overexpressing TLR4The effects of different seasons on superovulation of donors. a No. of embryos recovered. b No. of left and right oviduct embryos recovered. c Fertilization rate. BS = Breeding Season, N = 43. NBS = Non-breeding Season, N = 37Back to article page