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EXPERIMENTS ON INTERSPECIFIC SPERM PENETRATION THROUGH THE ZONA PELLUCIDA

Z. Dickmann

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Abstract

Summary. Rat eggs were transferred to the oviducts of previously mated rabbits. The purpose of such transfers was to find out whether or not spermatozoa of one species can penetrate through the zona pellucida of another species. Of the 673 rat eggs that were examined, the perivitelline space of one contained a rabbit spermatozoon. Penetration in this single instance seemed to have occurred due to abnormalities in the spermatozoon.

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Summary. Rat eggs were transferred to the oviducts of previously mated rabbits. The purpose of such transfers was to find out whether or not spermatozoa of one species can penetrate through the zona pellucida of another species. Of the 673 rat eggs that were examined, the perivitelline space of one contained a rabbit spermatozoon. Penetration in this single instance seemed to have occurred due to abnormalities in the spermatozoon.

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Available abstract

Summary. Rat eggs were transferred to the oviducts of previously mated rabbits. The purpose of such transfers was to find out whether or not spermatozoa of one species can penetrate through the zona pellucida of another species. Of the 673 rat eggs that were examined, the perivitelline space of one contained a rabbit spermatozoon. Penetration in this single instance seemed to have occurred due to abnormalities in the spermatozoon.

Key concepts: Spermatozoon, Zona pellucida, Perivitelline space, Sperm, Biology, Penetration (warfare), Interspecific competition, Andrology

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