The effect of timing of laparoscopic insemination in superovulated ewes, with or without sedation, on the recovery of embryos, their stage of develpoment and subsequent viability.

The effect of timing of laparoscopic insemination in superovulated ewes, with or without sedation, on the recovery of embryos, their stage of develpoment and subsequent viability. Research Abstract Details 

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The effect of timing of laparoscopic insemination in superovulated ewes, with or without sedation, on the recovery of embryos, their stage of develpoment and subsequent viability. Abstract Text:

C L Scudamore,J J Robinson,R P Aitken,

Twenty ewes were used as donors in a 2x2 factorial design experiment to investigate the effects of two different insemination times (48 vs 60 h after pessary withdrawal), with or without sedation, on the ovum recovery rate 5 d after insemination, the proportion of transferable embryos recovered, and the subsequent survival rate of embryos transferred to recipients. The ovum recovery rate following intauterine insemination at 48 h after progestagen pessary withdrawal was 63.8 and 53.4% for sedated and nonsedated control ewes, respectively. Following intrauterine insemination at 60 h the corresponding values for sedated and control ewes were 72.6 and 73.9%, respectively. The proportion of transferable quality embryos recovered was not affected by sedation but was improved by insemination at 48 h rather than 60 h after pessary withdrawal (100 vs 35.4%). Embryo survival following laparoscopic transfer to recipients from donor ewes inseminated at 48 h, with or without sedation was 38.8% (7 18 ) and 50% (7 14 ), respectively. Following intrauterine insemination of the donors at 60 h, the survival rate in recipients was reduced for embryos transferred from both the sedated and control ewes to 6.25% (1 16 ) and 36.3% (4 11 ). It is concluded that delaying the timing of intrauterine insemination relative to pessary withdrawal and the use of acepromazine maleate as a sedative at the time of insemination are deleterious to embryo development and subsequent viability.

The effect of timing of laparoscopic insemination in superovulated ewes, with or without sedation, on the recovery of embryos, their stage of develpoment and subsequent viability. Publishing Authors By Initials

CL Scudamore,JJ Robinson,RP Aitken,

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The effect of timing of laparoscopic insemination in superovulated ewes, with or without sedation, on the recovery of embryos, their stage of develpoment and subsequent viability. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Theriogenology

VOLUME: 35

Page Numbers: 907-14

Journal Abbreviation: Theriogenology

ISSN: 0093-691X

DAY: 26

MONTH: May

YEAR: 1991

The effect of timing of laparoscopic insemination in superovulated ewes, with or without sedation, on the recovery of embryos, their stage of develpoment and subsequent viability. Information

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LANGUAGE: eng

NlmUniqueID: 421510

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AFFILIATION: Rowett Research Institute, Greenburn Road, Bucksburn Aberdeen, AB2 9SB, Scotland.

Country: United States

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MEDLINETA: Theriogenology

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