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Cryopreservation of Preimplantation Embryos of Cattle, Sheep, and Goats
Published on: August 5, 2011
Effects of single deep insemination on transferable embryo recovery rates in superovulated dairy cows
F L Gatius1, J C Urgel, E A Asensio
1Departmento de Producción, Animal Escuela Superior de Agricultura, Avda. Alcalde Rovira Roure, 177 25006, Lérida, Spain.
Abstract:
Thirty superovulated Friesian lactating cows were randomly assigned to two groups. Group I donors were inseminated with one unit of semen deposited into the uterine body at 8, 20 and 32 h after the onset of estrus. Group II donors were inseminated with one unit of semen deposited deep into the uterine horns at 15 h after the onset of estrus. Neither the mean rates of fertilized ova nor the mean rates of transferable embryos were different between treatments (P > 0.05).
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