No. 27 (2001): Proceedings of the 2001 Interbull meeting

Articles

• Preface

  U Emanuelson

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• A joint nordic animal model for milk production traits in Holsteins and Ayrshires

  J Pedersen, C Langdahl, J Pösö, K Johnasson

  3

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• Genotype by environment interaction for milk production traits in Guernsey cattle

  F Fikse, R Rekaya, K Weigel

  9

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• Application of a multiple-trait herd cluster model for genetic evaluation of dairy sires from seventeen countries

  N R Zwald, K A Weigel, R Rekaya

  13

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• International dairy sire evaluation based on multiple-trait BLUP analysis of daughter performance records

  K A Weigel, N R Zwald, R Rekaya

  19

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• International genetic evaluation of dairy sires and cows using first lactation test day yields

  J Jamrozik, L R Schaeffer, K A Weigel

  26

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• PROduction Traits European Joint Evaluation (PROTEJE)

  F Canavesi, D Boichard, V Ducrocq, N Gengler, G de Jong, Z Liu

  32

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• International genetic evaluation for milkability

  D Sprengel, J Dodenhoff, K-U Götz, J Duda, L Dempfle

  35

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• The effective daughter contribution concept applied to multiple trait models for approximating reliability of estimated breeding values

  Z Liu, F Reinhardt, R Reents

  41

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• Mace for confirmation - Ayrshires

  B Klei, T Lawlor

  51

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• Type traits MACE correlation coefficients estimation in Brown Swiss

  A Bagnato, S Ghiroldi, E Santus

  56

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• Genetic relationship among functional traits in the Nordic Ayrshire populations

  M Svendsen, T Mark, U S Nielsen, J Pösö, M Gundel

  60

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• Genetic relationships among functional traits in the Nordic Holstein populations

  T Mark, U Sander Nielsen, J Pösö, M Gundel, M Svendsen

  64

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• Multiple-trait MACE with a number of traits per country

  P G Sullivan, J W Wilton

  68

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• Validation and comparison of methods to estimate (co)variance components for MACE

  P Madsen, M K Sørensen, T Mark

  73

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• Simultaneous estimation of genetic correlations for milk yield among 27 Holstein populations

  H Jorjani

  80

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• Alternative strategies for estimation of country sire variance in international evaluations of dairy bulls

  F Miglior, P G Sullivan, B B Van Doormaal

  84

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• Possible global scale for ranking dairy bulls by combining international evaluations expressed on national scales

  R L Powell, P M VanRaden

  89

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• The effect of more health traits in DPS on economic selection

  G de Jong, A Harbers

  97

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• Establishment of a single national selection index for Canada

  B Van Doormaal, G Kistemaker, F Miglior

  102

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• Developments in prediction of breeding values in Slovenia

  K Potočnik, J Krsnik, M Štepec, A Dolinar

  107

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• Genetic evaluation of dairy cattle in Korea

  Y L Choi, K J Han, S D Kim, B S Ahn, I S Nam, G J Jeon

  112

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• Impact of the integrated national cattle database on progress in genetic evaluation procedures

  S Sebestyén, Sz Simai, L Zsilinszky, P Wellisch

  115

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• A comparison between single and composite samples for dairy cattle evaluation

  F Neser, R van Dyk, F H Kanfer, J v.d Westhuizen

  119

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• Coping with unusual lactation records in the light of the 2001 foot and mouth scare in Ireland

  V E Olori, B Wickham

  123

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• Estimation of additive genetic variance of reproduction traits in Austrian Simmental

  T Druet, J Sölkner, C Fürst, N Gengler

  128

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• Quality and validation of insemination data for national genetic evaluations for dairy cow fertility in the United Kingdom

  H N Kadarmideen, M P Coffey

  133

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• Fertility breeding values for seasonal dairying

  B L Harris, W A Montgomerie

  139

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• Impact of data structure on validation of genetic trend in small population

  S Biffani, A Samoré, F Canavesi, P Boettcher

  143

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• A two-step procedure to get animal model solutions in Weibull survival models used for genetic evaluations on length of productive life

  V Ducrocq

  147

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• Random regression test-day model in The Netherlands

  A de Roos, A Harbers, G de Jong

  155

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• Application of a random regression model to genetic evaluations of test day yields and somatic cell scores in dairy cattle

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

  159

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• A multiplicative random regression model for test-day data with heterogeneous variance

  M Lidauer, E A Mäntysaari

  167

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• Auto-regressive versus random regression test-day models for the prediction of milk yields

  T Meuwissen, M H Pool

  172

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• Heterogeneity in (co)variance structures of test-day yields

  N Gengler, G R Wiggans

  179

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• Effects of random regression test-day models on EBVs and genetic trends in persistency

  M H Pool, T Meuwissen

  184

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• Genetic evaluation of persistency in random regression test day model

  T Strabel, W Kopacki, T Szwaczkowski

  189

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• Genetic parameters for test day somatic cell counts for the first three lactations using a random regression model

  R A Mrode, G Swanson

  193

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• List of participants

  U Emanuelson

  197

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