Proceedings of the 5th International Symposium on EQUINE ...

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Havemeyer Foundation Monograph Series No. 3Treatment 1Treatment 2Treatment 1Treatment 2PGF2αPGF2αPGF2αPGF2αPGF2αGroup Aoestrusoestrusoestrusoestrusov Day 6ov Day 6ov Day 6ov Day 6ov Day 6ov Day 6ov Day 6ov Day 6ov Day 6 ov Day 6Group BoestrusoestrusoestrusoestrusPGF2αPGF2αPGF2αPGF2αPGF2αTreatment 2Treatment 1Treatment 2Treatment 1Fig 1: Experimental protocol.(LH)[ng/ml]40353025201510500BuserelinePlaceboTime <strong>of</strong> inducedovulationTime <strong>of</strong>spontaneousovulation3 6 9 12 15 16 21 24 27 30 33 36 39 42 45 48 51 54 57InjectionInjectionInjectionInjectionHours after <strong>the</strong> first injectionFig 2: Variation before ovulation <strong>of</strong> LH concentrations <strong>of</strong> a mare treated in 2 consecutive cycles alternatively withbusereline (40 µg) and placebo injected intravenously 4 times every 12 h.48 h (P
Equine Embryo TransferTABLE 1: Success rates <strong>of</strong> induction <strong>of</strong> ovulation in Experiments 1 and 3Exp 1 (72 paired oestrous cycles) Exp 3 (60 paired oestrous cycles)Busereline Placebo P Busereline Busereline P40 µg x4 40 µg x4 20 µg x4Ovulation within 48 hafter 1st injection 61% 22% < 0.00 183% 90% N.S.Ovulation between 24and 48 h after1st injection 47% 14% < 0.054 7% 57% N.S.TABLE 2: success rates <strong>of</strong> induction <strong>of</strong> ovulation in Experiment 4 and 5Exp 4 (50 paired oestrous cycles) Exp 5 (60 paired oestrous cycles)Busereline hCG P Busereline hCG P20 µg x 4 2500 ui 13.3 µg x 3 2500 uiOvulation between32 and 48 hafter 1st injection 56 % 76 % N.S. 57 % 50 % N.S.Mean time <strong>of</strong>ovulation ± sd 39.5 ± 3.1 h38.4 ± 2.5 h N.S .43.1 ± 2.1 h 37.7 ± 2.3 h < 0.01<strong>of</strong> ovulation did not differ significantly between<strong>the</strong> 2 treatments (busereline 3 x 13.3 µg or hCG2,500 ui). However, <strong>the</strong>re were many earlyspontaneous ovulations within 32 h after <strong>the</strong> start<strong>of</strong> treatment quite only in cycles treated with hCG(11/30 versus 1/30). When ovulation occurredbetween 32 and 48 h after <strong>the</strong> first or <strong>the</strong> onlyinjection, <strong>the</strong>re was a significant difference(P
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HavemeyerFoundationHavemeyer Founda
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© 2001 by R & W Publications (Newm
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Equine Embryo TransferChromatin con
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Equine Embryo TransferEDITORS’ FO
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xEquine Embryo Transfer
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2Equine Embryo Transfer
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Equine Embryo TransferHYSTEROSCOPIC
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Equine Embryo TransferHYSTEROSCOPIC
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Equine Embryo TransferUTERINE BLOOD
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Equine Embryo Transfer0.900.850.800
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Equine Embryo Transferablated 10 da
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Equine Embryo TransferREFERENCESBer
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Equine Embryo TransferTABLE 1: Chan
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Equine Embryo TransferEFFECT OF TEM
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Equine Embryo TransferTABLE 2: Effe
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Page 85 and 86: Equine Embryo TransferTHE INFLUENCE
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