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1、http://www.ncbi.nlm.nih.gov/pubmed/16728089* k$ q$ z- w/ l) L- }8 ~3 J
Theriogenology. 1997 May;47(7):1433-43.' @! X) W% ]+ N( X8 {) q( d$ o
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In vitro and in vivo developmental capacity of oocytes from prepubertal and adult sheep.3 s" p/ r) \* A5 a6 I$ n3 p
O'Brien JK, Catt SL, Ireland KA, Maxwell WM, Evans G.# p) g# T5 J3 T$ q+ w
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Department of Animal Science, University of Sydney, NSW 2006, Australia.
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9 c* B8 A+ ?# k* I) P$ l2、http://www.ncbi.nlm.nih.gov/pubmed/11467510
9 y3 R) c( a2 }" MTheriogenology. 2001 Jul 1;56(1):147-55.
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) v) u# t& b6 ~- I4 I7 QThe repeatability of superovulatory response and embryo recovery in sheep.
2 m: f! d) O) k' _) B" w( SBari F, Khalid M, Wolf B, Haresign W, Murray A, Merrel B.
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6 D6 j: g! F: q6 N1 K0 C, z+ w( u# uInstitute of Rural Studies, University of Wales Aberystwyth, Ceredigion, UK.5 W( T0 M( R4 L* g; U; c' ?: z! |
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