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1、http://www.ncbi.nlm.nih.gov/pubmed/167280893 ?! d% O- a% x# t, f% [
Theriogenology. 1997 May;47(7):1433-43.
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In vitro and in vivo developmental capacity of oocytes from prepubertal and adult sheep.3 |: \, ~! P) x5 `
O'Brien JK, Catt SL, Ireland KA, Maxwell WM, Evans G.( ?# O& n1 ^7 m( s8 _
. |% f# u: F" h4 U F+ eDepartment of Animal Science, University of Sydney, NSW 2006, Australia.5 {2 E- v; D) f# ~; V
& Z1 m. k2 W# X# ^( \% P2 F2、http://www.ncbi.nlm.nih.gov/pubmed/114675103 D( D2 B' X4 F- `0 c8 R
Theriogenology. 2001 Jul 1;56(1):147-55.
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The repeatability of superovulatory response and embryo recovery in sheep.! |7 A. h' U2 X8 j
Bari F, Khalid M, Wolf B, Haresign W, Murray A, Merrel B.
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Institute of Rural Studies, University of Wales Aberystwyth, Ceredigion, UK.
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