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Problems in long-range insemination of livestock

U. S. D. A. and University of Idaho

Abstract

Introduction

The possibility of inseminating livestock artificially has long been known, although experimental work directed toward its practical ap-plication is relatively recent. At present several State experiment stations and the U. S. Department of Agriculture are doing research in this field. The work reported here is concerned with long-distance transfer of semen for purposes of artificial insemination.

The first report on the long-distance shipment of mammalian semen and its successful use in fecundation is that by Walton (6) in 1926. Rabbit semen was packed in ice in a vacuum bottle and sent through the ordinary post from Cambridge to Edinburgh.

Another experiment in long-range paternity in livestock was that reported by Walton and Prawochenskii (5) in which ram semen was shipped by airmail from England to Poland. They report the insemination of five ewes, two of which became pregnant. One of these aborted and the other produced one live ram lamb.

^1. U. S. D. A., Bureau of Animal Industry, Washington, D. C.

^2. Idaho Agricultural Experiment Station, Moscow, Idaho.

^3. U. S. D. A., Bureau of Animal Industry, Beltsville, Md.