Summary
Live rabbits for immunological experiments were produced by transfer of fresh or frozen-thawed embryos. The transfer of 505 fresh embryos and 55 frozen-thawed embryos resulted in 141 young born alive, 81 of which lived between several months and several years. The control group consisted of 55 litters from natural matings. About 70% of the live-born rabbits of natural mating and 55% of the young delivered by embryo transfer survived for more than eight weeks. Average litter sizes were 5.7, 3.7 and 2.2 for naturally mated females, fresh embryo transfer recipients, and frozen-thawed recipients, respectively.
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Acknowledgments. We should like to thank Drs C. M. Steinberg and L. Du Pasquier who read the manuscript critically. We are also indebted to Mr W. Hänggi of the animal colony at Roderdorf/SO for his invaluable help. The Basel Institute for Immunology was founded and is supported by F. Hoffamnn-La Roche&Co., Ltd, Basel (Switzerland).
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Hatton, J.B., Kelus, A.S. & Leibo, S.P. Transfer of fresh and frozen-thawed rabbit embryos to produce live young. Experientia 41, 755–756 (1985). https://doi.org/10.1007/BF02012581
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DOI: https://doi.org/10.1007/BF02012581