No. 29 (2002): Proceedings of the 2002 Interbull meeting

Articles

• Preface

  U Emanuelson

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• Combining disparate estimates of genetic correlations

  H Jorjani, B Klei, U Emanuelson

  1

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• Selection and grouping of herds in international genetic evaluation of daughter performance records

  K A Weigel, N R Zwald

  5

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• Genetic correlation estimates of a multiple lactation multiple country model for milk production traits based on performance records

  Z Liu, F Reinhardt, R Reents

  7

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• Bayesian estimation of within and across country genetic parameters for MACE

  J Jensen, P Madsen

  12

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• Bayesian MACE for Ayrshire conformation traits

  T Mark, P Madsen

  18

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• Estimation of across country genetic parameters for MACE based on DYD's or deregressed proofs

  P Madsen, T Mark

  22

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• Effects of changes in information sources in an udder health index on genetic correlations

  D T Prins, T Mark, W F Fikse, U Emanuelson

  28

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• Determining changes in definition of conformation traits and the effect on international evaluations

  G de Jong, A Harbers

  32

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• A pilot study on Mace for conformation for Guernseys

  B Klei, T Lawlor

  45

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• Feasibility of international genetic evaluation for calving ease and stillbirth in Holstein

  E Pasman, F Reinhardt

  49

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• Feasibility of MACE for longevity traits

  C van der Linde, G de Jong

  55

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• Properties of international longevity evaluations and correlations with other traits

  P M VanRaden, R L Powell

  61

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• Prediction of calving interval and survival breeding values for foreign bulls without daughters in Ireland

  V E Olori, A R Cromie, R F Veerkamp, T Meuwissen, M H Pool

  66

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• Joint genetic evaluation for fertility in Austria and Germany

  C Fuerst, C Egger-Danner

  73

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• Adjustment for heterogeneous genetic and non-genetic (co)variance structures in test-day models using a transformation on random regression effect regressors

  N Gengler, G R Wiggans

  79

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• Effect of heterogeneous variance adjustment in an across country evaluation of Brown Swiss

  M Lidauer, E A Mäntysaari, R Emmerling, I Strandén

  84

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• Model validation and rank reduction of covariance matrices in the random regression test-day model in The Netherlands

  A de Roos, E P.C Koenen, A Harbers, G de Jong

  91

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• Multivariate covariance functions for test day production in Danish dairy breeds

  J H Jakobsen, P Madsen, J Pedersen

  95

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• Impact of application of a random regression test day model to production trait genetic evaluations in dairy cattle

  F Reinhardt, Z Liu, A Bünger, L Dopp, R Reents

  103

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• Multiple lactation random regression test-day model for Simmental and Brown Swiss in Germany and Austria

  R Emmerling, M Lidauer, E A Mäntysaari

  111

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• National genetic evaluation for test-day milk yield of first parity using random regression test-day animal model in Korean Holstein cattle

  S D Kim, K J Han, J H Cho, G J Jeon, H K Lee, D H Lee

  118

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• Feasibility of a Walloon test-day model and study of its potential as tool for selection and management

  B Auvray, N Gengler

  123

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• Alternative modeling of fixed effects in test day models to increase their usefulness for management decisions

  P Mayeres, J Stoll, R Reents, N Gengler

  128

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• Joint Nordic evaluation as a first step to joint breeding program

  J Juga

  133

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• Estimation of parameters for three methods of heterogeneous variance adjustment on 305 days lactational data

  J Pena, M A Ibañez

  88

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• Genetic evaluation for female fertility in Switzerland

  U Schnyder, C Stricker

  138

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• PFT: the new selection index for the Italian Holstein

  S Biffani, A B Samoré, F Canavesi

  142

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• New total merit index RZG for Holsteins in Germany with more emphasis on herd life

  S Rensing, E Pasman, F Reinhardt, F Feddersen

  147

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• Economic values in the Danish total merit index

  J Pedersen, U Sander Nielsen, G P Aamand

  150

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• Effect of bimonthly sampling on genetic parameters and evaluation for somatic cell count

  R A Mrode, G Swanson

  155

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• The Interbull audit project part I - Results of an international survey

  S König, H Täubert, H Simianer, H H Swalve

  161

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• The Interbull audit project part II: Development of a program for auditing breeding value estimation programs

  H Täubert, H H Swalve, H Simianer

  165

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• Pedigree analysis of Holstein dairy catle populations

  C Maltecca, F Canavesi, G Gandini, A Bagnato

  168

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• Recommendations for a planned progeny test design and connection in French dairy cattle

  S Mattalia, S Moureaux, R Le Gall

  173

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• A method for verifying genetic evaluation results

  B Klei, T Mark, F Fikse, T Lawlor

  178

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• Preliminary analysis of mendelian sampling terms for genetic evaluation validation

  F Miglior, P G Sullivan, B J Van Doormaal

  183

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• Improving quality of results at the international level: critical areas and possible solutions

  F Canavesi, S Biffani, A B Samorè

  188

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• Effect of number of bulls on sire variance estimation

  F Miglior, P G Sullivan, B J Van Doormaal

  192

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• Recording system and quality of dairy cattle production data in Tunisia

  A Ben Gara, B Rekik, M Ben Hamouda, M Guellouz

  196

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• Breeding values for daughter fertility in Norwegian dairy cattle; data quality and model validation

  I A-Ranberg, G Klemetsdal, B Heringstad, M Svendsen, T Steine

  200

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• List of participants

  U Emanuelson

  205

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