Document Type

Thesis - Open Access

Award Date


Degree Name

Master of Science (MS)

Department / School

Dairy Science


The breed association are continuously confronted with the problem of properly identifying animals for registration. The method of identifying the broken color breeds, such as Guernseys, Holsteins, and Ayrshires, is by a sketch of the color patterns which accompanies the application for registration. This has been fairly successful, but due to the poor drawing ability of the applicant approximately twenty percent of animal markings and sketch do not resemble each other to establish identity. The solid colored breeds use brands or tattoo marks in the ear which are not entirely satisfactory since these are artificial and can be applied in duplicate to different animals thus leading to substitution by unscrupulous breeders. The breed associations have been continuously searching for more accurate identification to avoid the falsification of registration papers and the rancher is looking for a means for identifying stolen cattle. Since fingerprints result from rows of sweat glands, and since similar sweat gland configurations are present on the cow’s nose, possibly these configurations are present on the cow’s nose, possibly these configurations could serve as an accurate means of classification. Thus this study is concerned with the possibilities of identifying cattle by nose prints. The objectives of this paper are twofold. One is to establish a workable classifying system whereby the nose prints of cattle could be filed similar to that of the fingerprint classification. Secondly a study of identical twin cattle has been made to ascertain whether the nose prints of monozygous cattle twins are similar enough to be considered as a method of determining monozygotic.

Library of Congress Subject Headings

Cattle -- Marketing


Includes bibliographical references (pages 28)



Number of Pages



South Dakota State University


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Dairy Science Commons