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Gottfried Brem

Ulrich Weidle

The invention relates to modified ear tags comprising a mandrel-type plate (), a counter plate (), in addition to a container for receiving a sample () and a means for obtaining the sample (). The means for obtaining the sample () has a detachable hollow tip and the counter-plate () has no through opening for the mandrel. The invention relates more particularly to the use of the ear tags for genotypical analysis of animal populations and to a method for analyzing animal populations with the ear tags.

Modified ear tags and method for removing tissue

Process for the production of proteins with antibody activity in which one or several DNA sequences coding for this protein are introduced into the male pronucleus of a fertilized ovum of a pig or rabbit by microinjection, the ova are implanted in the oviduct of a pig or rabbit, the offspring are bred and the protein with antibody activity is isolated from their serum in the usual way whereby the DNA sequences used for the microinjection are free of bacterial foreign sequences, and are preferably used with immunoglobulin promoter and enhancer sequences.

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86567 Hilgertshausen, Germany

Gottfried Brem