| 摘要 |
The invention provides a method of rearing a bird of germ-free status. The method comprises housing a bird as a parent bird, surgically removing an egg in its shell from the parent bird prior to transfer of the egg to the cloaca in the parent bird, incubating the egg still in its shell and hatching the egg to produce a laying bird. The invention also relates to the production of avian eggs of germ-free status.
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