No. 32 (2004): Proceedings of the 2004 Interbull meeting

Sousse, Tunisia, May 29-31 2004

Published: 2012-03-09

Articles

Preface

F Fikse
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Joint evaluation of Milking Shorthorn dairy cattle for production traits

R A Barrett, F Miglior, J Jamrozik, G Jansen, L R Schaeffer

3
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Joint Nordic test day model for milk production traits

J Pedersen, U Sander Nielsen, G P Aamand, J Pösö, E Mäntysaari, M Lidauer, I Stranden, P Madsen, K. Johansson, J-Å Eriksson, J Juga

8
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A joint Nordic model for type traits

A Fogh, J-Å Eriksson, J Juga, M Toivonen, J Pösö, M Simpanen, U Sander Nielsen, G P Aamand

13
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Comparison of alternative strategies for an international genetic evaluation of beef cattle breeds

F Phocas, K Donoghue, H Graser

18
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Conversion equations revisited: Single and multiple-trait conversion equations and comparison with simple-MACE

H Jorjani, F Fikse

25
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Report from workshop in Uppsala

J Wilmink, F Fikse

33
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Bicountry evaluation for conformation using MACE and animal model

G de Jong, C van Rumst, A Harbers, T Lawlor

37
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Accuracy of MACE evaluation for composite type traits compared to prediction based on linear traits

F Miglior, P G Sullivan, B J Van Doormaal

41
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A multi-trait MACE model for international bull comparison based on daughter yield deviations

Z Liu, F Reinhardt, R Reents

46
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MACE weighting factors for direct and maternal EBVs from multiple-trait models

P G Sullivan, G J Kistemaker, J Jakobsen, F Fikse

53
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Feasibility of MACE for longevity for colored breeds

J H Jakobsen, W F Fikse, P M VanRaden

59
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Estimation of genetic correlations using a structural model for milk and type traits: limits and opportunities

H Leclerc, S Minéry, W F Fikse, V Ducrocq, T Druet

65
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Multiple-trait across-country evaluations using singular (co)variance matrix and random regression model

E A Mäntysaari

70
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Does selection for production affect type traits genetic evaluation in Italian Holstein?

F Biscarini, S Biffani, F Canavesi

77
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Genetic and economic evaluation of dairy cow body condition score in New Zealand

J E Pryce, B L Harris

82
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Genetic evaluation of female fertility in Canadian dairy breeds

B J Van Doormaal, G Kistemaker, J Fatehi, F Miglior, J Jamrozik, L R Schaeffer

86
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Potential for genetic evaluation of health and fertility traits using data collected in on-farm herd management software programs

K A Weigel, N R Zwald, Y M Chang, R D Welper, J S Clay

90
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Are high pins related to poor fertility?

E Wall, I White, M P Coffey, S Brotherstone

94
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Test-day model for national genetic evaluation of somatic cell count in New Zealand

B L Harris, A M Winkelman

101
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From a repeatability to a random regression test day model evaluation for somatic cells: evaluation of results in the Italian Holstein population

F Canavesi, S Biffani, F Biscarini

105
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Computing inbreeding coefficients and effects of inbreeding, heterosis and recombination loss on evaluations for lifespan and somatic cell count in the UK

R Mrode, G Swanson, M F Paget

109
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Cross breeding in dairy cattle: The effect on calving ease

S McClintock, R Poole, K Beard, M Goddard

113
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Choice of scales for delivery of genetic evaluations to the public

P M VanRaden

118
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Genetic parameter estimation for casein in Brown Swiss

S Ghiroldi, C Nicoletti, A Rossoni

125
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Multivariate animal model estimates of genetic, environmental and phenotypic correlations for early lactation milk yield and composition in Tunisian Holstein-Friesians

M H Othmane, M Ben Hamouda, H Hammami

129
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Multiple-lactation random regression test-day model for Polish Black and White cattle

T Strabel, E Ptak, J Szyda, J Jamrozik

133
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Integrated adjustment for variance heterogeneity of test-day yield with a structural variance model in the Walloon genetic evaluation

P Mayeres, A Gillon, N Gengler

137
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Validation of genetic trend estimates from test-day model using individual daughter deviations

M Lidauer, E A Mäntysaari, I Strandén

142
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An alarm firing system for national genetic evaluation quality control

S Diplaris, A L Symeonidis, P A Mitkas, G Banos, Z Abas

146
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Illustration of a trend validation test for longevity evaluations

V Ducrocq

151
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Using a piecewise Weibull mixed model in the genetic evaluation for longevity

C van der Linde, G de Jong, A Harbers

157
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Combined use of quantitative and molecular data in genetic evaluations for milk production of Dual-Purpose Belgian Blue cows

N Gengler, P Mayeres, J Baudouin, S Abras, A Felix, C Michaux

165
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A marker assisted genetic evaluation system for dairy cattle using a random QTL model

Z Liu, F Reinhardt, J Szyda, H Thomsen, R Reents

170
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List of participants

F Fikse

175
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