A method for improving the efficiency of porcine somatic cell nuclear transfer
A technology of culture medium and embryo culture medium, applied in botany equipment and methods, animal cells, vertebrate cells, etc., can solve the problem of low overall efficiency of pig somatic cell cloning, increase the number of blastocyst cells, and improve the overall efficiency , the effect of increasing blastocyst rate
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[0043] Embodiment 1, pig somatic cell nuclear transfer
[0044] 1. In vitro maturation culture of porcine oocytes
[0045] Take the pig ovary from the slaughterhouse, wash it three times with normal saline containing 100U / mL penicillin and 100U / mL streptomycin, and then use a 10mL disposable syringe and a 18-gauge needle to extract follicles with a diameter of 3-6mm Cumulus-oocyte complexes (COCs) wrapped with 3-5 layers of cumulus cells were selected from the liquid. COCs were rinsed twice with normal saline containing 100U / mL penicillin and 100U / mL streptomycin, then transferred to IVM solution, at 39°C, saturated humidity, 5% CO 2 Cultured in the incubator for 42h.
[0046] 2. Isolation and culture of porcine fetal fibroblasts
[0047] Pig fetal fibroblasts were prepared according to the following steps in turn:
[0048] 1. Take out the fetus from the uterus of pregnant sows at gestation day 35, wash with DPBS buffer solution containing 100U / mL penicillin and 100U / mL st...
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