Genetic Differences in Health Problems and Calving Difficulty in Dairy Cattle

Authors

  • A. E. Freeman Department of Animal Science, Iowa State University, Ames, Iowa 50020

Keywords:

milk production, calving difficulty, sire ranking

Abstract

This paper considers two areas of our research. The first is results of an experiment where selection is only for milk production with recording and measurement of all production- and health-related differences. This is done cooperatively with the Iowa State University Department of Veterinary Clinical Science. The second is the results of a research project which developed procedures for ranking sires for calving difficulty. This work has been adopted by the National Association of Animal Breeders and is now being used on a national basis.

Cover image of the Proceedings of the 10th Annual Convention: Cover image is a photo of the Gateway Arch taken at sunset in hues of orange. Conference information is written on top of the image and the conference theme is written at the bottom of the page.

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Published

1977-12-12

Issue

1977

Section

Dairy Sessions