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Evaluation of recipient and EMBRYO factors on success of inter-breed EMBRYO transfer in sheep

Gimenez Diaz, Carlos Alcibiades (2013) Evaluation of recipient and EMBRYO factors on success of inter-breed EMBRYO transfer in sheep. Doctoral Thesis.

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Abstract

Studies on multiple ovulation and embryo transfer (MOET) showed that this technique is widely acknowledged as the best available option to a low cost route of exporting genetic material across international boundaries along with control disease transmission during imports. In addition to that MOET have been used so much to proliferate genes of reputedly superior stock. An appreciation of the potential benefit of MOET was perhaps best demonstrated in dairy cows, however, the application of MOET techniques to sheep has been much more slower. The success of this technique is very unpredictable due to many factors are contributing to the overall results. Experiments were initiated to determine effects of factors related to recipient and embryo on MOET success in inter-breed embryo transfer in sheep. Three experiments were conducted to compare recipient and embryo genotypes, cryopreservation techniques, and pregnancy rates obtained with fresh and frozen embryo transfers. Further investigations were conducted on such as number of corpus luteum, site of ovulation and transfer in recipients and number of embryos used as single or in pairs, stage of embryo development and quality grades.

Item Type:Doctoral Thesis
ID Code:8134
Contributors:Ledda, Sergio and Dattena, Maria
Publisher:Università degli studi di Sassari
Uncontrolled Keywords:Embryo recipient
Subjects:Area 07 - Scienze agrarie e veterinarie > VET/02 Fisiologia veterinaria
Divisions:001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Medicina Veterinaria
Cicli, scuole e corsi:Ciclo 25 > Scuole > Riproduzione, produzione, benessere animale e sicurezza degli alimenti di origine animale > Riproduzione, produzione e benessere animale
Deposited On:03 Apr 2013 10:14

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