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The germfree leopard frog (Rana pipiens): preliminary report
Laboratory Animal Science
|August 1, 1977
Abstract:
Eggs and sperm were aseptically collected from leopard frogs (Rana pipiens) and passed into sterilized flexible film isolators. Egg fertilization was accomplished, and germfree tadpoles were produced. The germfree tadpoles were active and free-swimming for 3 weeks, but only 6.2% survived to 4 weeks of age. None survived after the 4th week.
