JDS
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Journal of Dairy Science Vol. 81 No. 5 1445-1453
© 1998 by American Dairy Science Association ®
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 Rogers, G. W.
Right arrow Articles by Philipsson, J.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Rogers, G. W.
Right arrow Articles by Philipsson, J.

Genetic Correlations Among Somatic Cell Scores, Productive Life, and Type Traits from the United States and Udder Health Measures from Denmark and Sweden

G. W. Rogers 1, G. Banos 2, U. Sander Nielsen 3, and J. Philipsson 4

1 Department of Dairy and Animal Science, The Pennsylvania State University, 324 Henning Building, University Park 16802
2 INTERBULL Centre, Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Box 7023, Uppsala, Sweden, S 750 07
3 Danish Agricultural Advisory Center, Udkaersdej 15, Aarhus, Denmark, DK 8200
4 Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Box 7023, Uppsala, Sweden, S 750 07

Sire genetic evaluations for protein yield, somatic cell score (SCS), productive life, and udder type traits from the US were correlated with sire evaluations for udder health from Denmark and Sweden and then the correlations were adjusted for accuracies to approximate genetic correlations. Traits from Denmark and Sweden included somatic cell count (SCC) and clinical mastitis from single-trait analyses. In addition, evaluations for clinical mastitis from Denmark and Sweden were regressed on US traits to test for quadratic relationships. Information from 85 bulls with US and Danish evaluations (77 with US type) and from 80 bulls with US and Swedish evaluations (79 with US type) was used to calculate correlations. Genetic correlations of US protein yield with Danish and Swedish SCC and clinical mastitis were all unfavorable (–0.09 to –0.32). Genetic correlations of US productive life with Danish and Swedish SCC and clinical mastitis were all favorable (0.06 to 0.59). Genetic correlations between US SCS and Danish SCC and between US SCS and Swedish SCC were –0.87 and –0.99, respectively (favorable). Genetic correlations between US SCS and Danish clinical mastitis and between US SCS and Swedish clinical mastitis were –0.66 and –0.49, respectively (favorable). The US type traits that had the largest correlations with clinical mastitis from Denmark and Sweden, respectively, were udder composite (0.26, 0.47), udder depth (0.45, 0.52), and fore udder attachment (0.31, 0.34). In general, quadratic regressions indicated little nonlinearity between clinical mastitis and the US traits. Specifically, the US bulls with the lowest predicted transmitting abilities for SCS had the most favorable rates of daughter clinical mastitis in Denmark and Sweden. Selection for increased productive life, lower SCS, and more shallow udders should improve mastitis resistance.

Key Words: mastitis • somatic cell score • type traits • longevity

Submitted on June 5, 1997
Accepted on January 7, 1998




This article has been cited by other articles:


Home page
 J DAIRY SCIHome page
L. H. Buch, A. C. Sorensen, J. Lassen, P. Berg, L. G. Christensen, and M. K. Sorensen
Factors affecting the exchange of genetic material between Nordic and US Holstein populations
J Dairy Sci, August 1, 2009; 92(8): 4023 - 4034.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
J. E. Vallimont, C. D. Dechow, C. G. Sattler, and J. S. Clay
Heritability estimates associated with alternative definitions of mastitis and correlations with somatic cell score and yield
J Dairy Sci, July 1, 2009; 92(7): 3402 - 3410.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
A. Sewalem, F. Miglior, G. J. Kistemaker, and B. J. Van Doormaal
Analysis of the relationship between somatic cell score and functional longevity in canadian dairy cattle.
J Dairy Sci, September 1, 2006; 89(9): 3609 - 3614.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
M. Holmberg and L. Andersson-Eklund
Quantitative Trait Loci Affecting Health Traits in Swedish Dairy Cattle
J Dairy Sci, August 1, 2004; 87(8): 2653 - 2659.
[Abstract] [Full Text] [PDF]

Home page
 ajsHome page
D. Koehn, J. Arnold, B. Jamtveit, and A. Malthe-Sorenssen
Instabilities in Stress Corrosion and the Transition to Brittle Failure
Am J Sci, December 1, 2003; 303(10): 956 - 971.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
J. Odegard, G. Klemetsdal, and B. Heringstad
Genetic Improvement of Mastitis Resistance: Validation of Somatic Cell Score and Clinical Mastitis as Selection Criteria
J Dairy Sci, December 1, 2003; 86(12): 4129 - 4136.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
D. L. Nash, G. W. Rogers, J. B. Cooper, G. L. Hargrove, and J. F. Keown
Heritability of Intramammary Infections at First Parturition and Relationships with Sire Transmitting Abilities for Somatic Cell Score, Udder Type Traits, Productive Life, and Protein Yield
J Dairy Sci, August 1, 2003; 86(8): 2684 - 2695.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
T. Mark, W. F. Fikse, U. Emanuelson, and J. Philipsson
International Genetic Evaluations of Holstein Sires for Milk Somatic Cell and Clinical Mastitis
J Dairy Sci, September 1, 2002; 85(9): 2384 - 2392.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1998 by the American Dairy Science Association ®.