J. Anim Sci.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J. Anim Sci. 1967. 26:984-987.
© 1967 American Society of Animal Science
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Deese, R. E.
Right arrow Articles by Roger, M.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Deese, R. E.
Right arrow Articles by Roger, M.

Heritability of Fertility in Brahman and Crossbred Cattle1

R. E. Deese2 and M. Roger

Florida Agricultural Experiment Station

Abstract

The calving records of a purebred Brahman herd and a crossbred foundation herd of Brahman-Shorthorn breeding were evaluated for genetic influences on cow fertility. Observations were coded one (1) and zero (0), respectively, for cows which calved and those which failed to calve.

Heritability estimates for birth rate by paternal half-sib correlations based on single records of 3-year-old first record cows and 4-year-old second record cows were 0.31 and 0.21, respectively, in the Brahman herd and 0.63 and 0.56 in the crossbred herd, for an average of 0.42 for the four estimates obtained from single records. Estimates from the paternal half-sib correlation of average lifetime records were 0.39 for both herds. The regression of lifetime average of the daughter on the lifetime average of her dam yielded heritability estimates of 0.54 and 0.25 for the two herds, respectively.

Footnotes

1 Florida Agricultural Experiment Station's Journal Series No.2471. Contribution from the Southern Regional Project S-10,Breeding Methods for Beef Cattle in the Southern Region.

2 Present address: Cooperative Extension Service, Auburn, Alabama.




This article has been cited by other articles:


Home page
 J ANIM SCIHome page
J. L. L. Guerra, D. E. Franke, and D. C. Blouin
Genetic parameters for calving rate and calf survival from linear, threshold, and logistic models in a multibreed beef cattle population
J Anim Sci, December 1, 2006; 84(12): 3197 - 3203.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1967 by the American Society of Animal Science.