Article
Heritability of teat-end shape and the relationship of teat-end shape with somatic cell score for an experimental herd of cows.
Journal of dairy science - 1 Nov 2001
Chrystal M A, Seykora A J, Hansen L B, Freeman A E, Kelley D H, Healey M H
Abstract excerpt
Teat-end shapes were categorized for 1443 Holstein cows with 3582 lactations, in the Iowa State University herd at Ankeny, approximately 40 d postpartum between 1970 and 1995. Frequencies of teat-end shapes were as follows: round, 52.2%; prolapsed, 0.8%; flat, 14.2%; plate, 3.4%; funnel, 8.9%; and mixed, 20.5%. Cows were coded as mixed if all four teat-end shapes were not the same. Heritability estimates were...
Read the complete abstract on PubMedTopics
Share this publication in a Topic to start or enrich a Post.