Functional traits in cattle

Date: 05 June ‘05; 14:00 - 18:00 hours
Chairperson: Crettenand (CH) and Emanuelson (SE)

Theatre

• International trends in genetic evaluation of functional traits in dairy cattle (Mark, T., J.H. Jakobsen, H. Jorjani, W.F. Fikse and J. Philipsson)

• Functional traits in cattle breeding programs: implementation issues (Sölkner, J., A. Willam, C. Egger-Danner and H. Schwarzenbacher)

• US perspective: the importance of functional traits and crossbreeding in dairy cattle (Rogers, G.W.)

• Threshold versus Linear model estimates of genetic and environmental correlations between udder health and production traits (Negussie, E., I. Strandén and E. Mäntysaari)

• Survival analysis for genetic evaluation of mastitis in dairy cattle: A simulation study (Carlén, E., U. Emanuelson and E. Strandberg)

• Genetic analysis of cases of subclinical mastitis (Schafberg, R., F. Rosner, G. Anacker and H.H. Swalve)

• Genetic correlations between clinical mastitis, milk fever, ketosis, and retained placenta within and between the first three lactations (Heringstad, B., Y.M. Chang, D. Gianola and G. Klemetsdal)

• Genetic parameters for predictors of body weight, production traits and somatic cell count in Swiss dairy cows (Haas, Y. de and H.N. Kadarmideen)

• Does persistency of lactation influence the disease liability in German Holstein dairy cattle? (Harder, B., J. Bennewitz, D. Hinrichs and E. Kalm)

• Genetic effects on stillbirth and calving difficulty in Swedish Red and White dairy cattle at first and second calving (Steinbock, L., K. Johansson, A. Näsholm, B. Berglund and J. Philipsson)

• International genetic evaluation of female fertility traits in 11 Holstein populations (Jorjani, H.)

Poster

• Genotype by environment interaction for udder health traits in Swedish Holstein cows (Carlén, E., K. Jansson and E. Strandberg)

• Relationship of somatic cell count and udder conformation traits in Iranian Holstein cattle (Sanjabi, M.R., A. Ghoibaighi and R.V. Torshizi)

• Genetic analysis of somatic cell score in Danish dairy cattle using random regression test-day model (Elsaid, R., A. Sabry, M. Lund and P. Madsen)

• Comparison of different strategies of quantitative genetic analysis of health traits in dairy cattle (Bergfeld, U., R. Fischer, C. Kehr and M. Klunker)

• Longitudinal genetic analyses of functional traits in dairy cows using daily random regression methodology (Karacaören, B., F. Jaffrézic and H.N. Kadarmideen)

• Legendre polynomials for genetic evaluations of persistency of milk production of Holstein cows (Cobuci, J.A., C.N. Costa, N.M. Teixeira and A.F. Freitas)

• Relationships between milkability traits in Brown Swiss (Dodenhoff, J., R. Emmerling and D. Sprengel)

• Factors affecting days open in Polish Holsteins (Jagusiak, W. and A. Zarnecki)

• Phenotypic and genetic variability of reproduction traits of black and white cows (Djedovic, R., V. Bogdanovic and P. Perisic)

• Gestation length for genetic evaluation of calving traits in dairy cattle (Stamer, E., W. Junge, W. Brade and E. Kalm)

• Analysis of genetic and environmental effects on claw disorders diagnosed at hoof trimming (Swalve, H.H., R. Pijl, M. Bethge, F. Rosner and M. Wensch-Dorendorf)

• Phenotypic relationships between type traits and survival in New Zealand dairy cattle (Berry, D.P., B.L. Harris, A.M. Winkelman and W. Montgomerie)

• Relationships between bodyweight, milk yield, and longevity of Estonian test cows (Saveli, O. and M. Voore)

• Estimation of economic values of longevity and other functional traits in Finnish dairy cattle (Toivakka, M., J.I. Nousiainen and E.A. Mäntysaari)

• Joint genetic evaluation for functional longevity for Pinzgau cattle (Egger-Danner, C., O. Kadlecik and C. Fuerst and R. Kasarda)

• Study on the longevity of beef cows of different breeds (Dákay, I., D. Márton, Z. Lengyel, M. Török and Zs. Vincze)

• Multiple breed evaluation for cow survival and fertility in Irish beef cattle (Pool, M.H., V.E. Olori, A.R. Cromie and R.F. Veerkamp)