| Embryo recovery rate and recipients' pregnancy rate after nonsurgical embryo transfer in donkeys. | |
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MedLine Citation:
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PMID: 20083302 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Sixty-three embryos were recovered out of 83 estrous cycles (75.9%) and 98 ovulations (64.3%) of five Pantesca jennies, 2 to 5 yr old, naturally mated or artificially inseminated with fresh semen. Embryo recovery rate was influenced by number of ovulations per cycle (133% and 63% for double and single ovulations, respectively), by the day of embryo recovery attempt (12%, 83%, and 75% at Days 7, 8, and 9 after ovulation, respectively), and by the repetition of the embryo recovery attempt on successive cycles (60%, 79%, and 100% for cycles 1 to 7, 8 to 14, and 15 to 24, respectively). All recovered embryos but three were classified as good or excellent. Of 58 nonsurgical embryo transfers to Ragusana jenny recipients, 13 (22.4%), 10 (17.2%), and 9 (15.5%) resulted in a pregnancy at Days 14, 25, and 50, respectively. Recipients' pregnancy rate was not influenced by the evaluated parameters: embryo quality and age, media employed to wash embryos, days after ovulation of the recipient, experience of the operator. Between 14 and 50 d of pregnancy, 4 of 13 (30.7%) embryos were lost with an influence of the days from ovulation of the recipient: recipients at Days 5 or 6 kept all pregnancies (N=7), whereas recipients at Days 7 or 8 lost 3 of 4 pregnancies, as one of the two recipients at Day 3. More studies are needed before embryo transfer could be considered a reliable tool to preserve endangered donkey breeds. |
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Authors:
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F Camillo; D Panzani; C Scollo; A Rota; A Crisci; I Vannozzi; S Balbo |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-01-18 |
Journal Detail:
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Title: Theriogenology Volume: 73 ISSN: 1879-3231 ISO Abbreviation: Theriogenology Publication Date: 2010 Apr |
Date Detail:
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Created Date: 2010-03-19 Completed Date: 2010-06-23 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0421510 Medline TA: Theriogenology Country: United States |
Other Details:
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Languages: eng Pagination: 959-65 Citation Subset: IM |
Copyright Information:
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Copyright 2010 Elsevier Inc. All rights reserved. |
Affiliation:
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Dipartimento di Clinica Veterinaria, Universit? di Pisa, San Piero a Grado (PI), Italy. fcamillo@vet.unipi.it |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Breeding Conservation of Natural Resources / methods Embryo Transfer / methods, veterinary* Endangered Species Equidae* Estrous Cycle Female Gestational Age Insemination, Artificial / veterinary Ovulation Pregnancy Time Factors Tissue and Organ Harvesting / veterinary* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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