NEW TOTAL MERIT INDEX (GZW) CURRENT STATUS
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1 NEW TOTAL MERIT INDEX (GZW) CURRENT STATUS Dr. Christian FÜRST, ZuchtData, Wien Mainly based on results of Working Group Breeding goal
2 Working Group Breeding goal Members: breeding organisations and geneticists Dr. Egger-Danner, Dr. Fürst, Dr. Götz, Dr. Herold, Dr. Krogmeier, Dr. Kucera, Dr. Röhrmoser, Ing. Tanzler, Dr. Weidele, DI Winkler, (Dr. Fürst-Waltl) Tasks: Preparation of information on possible breeding goals and economic weights Coordination of discussion on new total merit index No decisions!
3 GZW in past and future
4 Outline Background Affected Topics Method Traits Weights Current status Timetable
5 Background
6 Background why? Method: Some weaknesses in method Simplified correlations used New traits: Rearing loss of calves/heifers Health Changes in existing traits: E.g. problems with data for dressing percentage
7 Genetic trend cows milk Fkg = fat yield Ekg = protein yield
8 Genetic trend cows beef FW = beef index NTZ = net daily g. AUS = dressing p. HKL = EUROP
9 Genetic trend cows fitness ND = longevity FRW = fertility
10 Genetic trend cows conformation Ra = Frame Bem = Muscling Fu = Feet&legs Eu = Udder
11 Background genetic trends high selection response for milk traits slightly negative development for EUROP grade and muscling stable to slightly positive trends for most fitness traits positive trend for feet&legs and udder à in general very positive development
12 Background why? Did genetic parameters change? What about economic situation? Desires of breeders, consumers and politics: age of animal welfare increasing focus on fitness traits
13 Breeders survey OptiGene (Steininger et al., 2013) personal breeding goal not important ß à important Fertility Longevity Udder Milk contents Persistency Udder health Milk yield Health Feet&legs Milking speed Polled Beef
14 Breeders survey OptiGene (Steininger et al., 2013) Importance of traits complexes Fitness Conformation Beef Milk
15 Breeders survey OptiGene (Steininger et al., 2013) Importance of traits complexes (CZ) Fitness Conformation Beef Milk
16 Background additional aspect Genomic selection offers the chance to keep the high selection response for milk and simultaneously put more weight on fitness!
17 Affected topics Method Traits Weights
18 METHOD
19 Method current method ( Miesenberger ) shows too high spread with low to medium reliabilities alternative method necessary à adapted selection index method new genetic correlations between traits other traits which are indices are also affected (MW-milk, FIT-fitness, ND-longevity, EGW-udder health)
20 TRAITS
21 What was/is under discussion? delete? Dressing percentage no Persistency no Milking speed no? Calving ease (direct) no? include? Rearing loss yes Milk fever not yet Farmer-observed health data yes (addition to vet data) Conformation no
22 Why no conformation? 15% in Holstein but: Direct economic weight just for herds selling heifers Low realization for whole population Functional effect of conformation on longevity and udder health is already included! Conformation has already high importance in selection (EBV limits) Danger of double counting The weights for which traits should be reduced to include conformation?
23 ECONOMIC WEIGHTS
24 GZW current
25 GZW current
26 Economic weights Part of project Optigene (Birgit Fürst-Waltl, 2015) Method like Miesenberger (1997) and Lind (2007) Herd with milk production (without quota), heifer rearing and bull fattening Principle: how much does the profit increase, if you change the trait by 1 unit?
27 Variant 1 (with milk yield) (Fürst-Waltl, 2015) Milk yield will not be in GZW
28 Variant 2 (without milk yield) (Fürst-Waltl, 2015)
29 Economic weights current Fürst-Waltl, 2015 MILK Fat-kg Protein-kg BEEF Net daily gain Dressing percentage EUROP grade score FITNESS Longevity Persistency Fertility Calving ease Stillbirth Udder health Milking speed
30 Economic weights current Fürst-Waltl, 2015 MILK Fat-kg 4,4 19,9 Protein-kg 33,4 20,8 BEEF Net daily gain 7,3 9,3 Dressing percentage 4,6 2,9 EUROP grade score 4,6 1,5 FITNESS Longevity 13,4 10,9 Persistency 2,0 4,3 Fertility 6,8 11,3 Calving ease 3,6 2,2 Stillbirth 8,0 New: rearing 5,2 loss 4,4% Udder health 9,7 8,7 Milking speed 2,0 3,1
31 Current status of discussions
32 Current status Milk : Beef : Fitness = 35(-40) : 15 : (45-)50% Milk: Closer fat:protein ratio (as derived) Selection response should not decrease Beef: Selection response for EUROP grade not negative à higher weight Fitness: Higher weight for fertility Rearing loss (+stillbirth) included
33 GZW-Variants V0 (current) V2 (new weights) V4 (adapted) e.w. (%) SR e.w. (%) SR e.w. (%) SR MILK Milk-kg Fat-kg Protein-kg BEEF Net daily gain Dressing perc. EUROP grade FITNESS Longevity Persistency Fertility Calving ease dir. Calving ease mat. Stillbirth dir. Stillbirth mat. Udder health Milking speed
34 GZW-Variants V0 (current) V2 (new weights) V4 (adapted) e.w. (%) SR e.w. (%) SR e.w. (%) SR MILK Milk-kg 0,0 364 Fat-kg 4,4 15,3 Protein-kg 33,4 11,9 BEEF Net daily gain 7,3 4,4 Dressing perc. 4,6 0,8 EUROP grade 4,6 1,9 FITNESS Longevity 13,4 2,2 Persistency 2,0 1,6 Fertility 6,8-0,4 Calving ease dir. 1,8-0,4 Calving ease mat. 1,8 3,0 Stillbirth dir. 4,0 1,0 Stillbirth mat. 4,0 1,8 Udder health 9,7 0,0 Milking speed 2,0 2,9
35 GZW-Variants V0 (new corr.) V2 (new weights) V4 (adapted) e.w. (%) SR e.w. (%) SR e.w. (%) SR MILK Milk-kg 0,0 351 Fat-kg 4,4 11,6 Protein-kg 33,4 10,6 BEEF 16 9 Net daily gain 7,3 3,6 Dressing perc. 4,6 1,5 EUROP grade 4,6 0,4 FITNESS Longevity 13,4 3,1 Persistency 2,0 1,7 Fertility 6,8-1,1 Calving ease dir. 1,8 0,3 Calving ease mat. 1,8 3,4 Stillbirth dir. 4,0 1,1 Stillbirth mat. 4,0 2,0 Udder health 9,7 1,7 Milking speed 2,0 3,7
36 GZW-Variants V0 (new corr.) V2 (new weights) V4 (adapted) e.w. (%) SR e.w. (%) SR e.w. (%) SR MILK Milk-kg 0, ,0 371 Fat-kg 4,4 11,6 19,9 14,0 Protein-kg 33,4 10,6 20,8 10,8 BEEF Net daily gain 7,3 3,6 9,3 2,9 Dressing perc. 4,6 1,5 2,9 0,4 EUROP grade 4,6 0,4 1,5-1,0 FITNESS Longevity 13,4 3,1 10,9 2,8 Persistency 2,0 1,7 4,3 2,0 Fertility 6,8-1,1 11,3-0,8 Calving ease dir. 1,8 0,3 1,1-0,1 Calving ease mat. 1,8 3,4 1,1 3,6 Stillbirth dir. 4,0 1,1 2,6 +4,4% 0,5 rearing Stillbirth mat. 4,0 2,0 2,6 1,5 loss Udder health 9,7 1,7 8,7 1,2 Milking speed 2,0 3,7 3,1 4,3
37 GZW-Variants V0 (new corr.) V2 (new weights) V4 (adapted) e.w. (%) SR e.w. (%) SR e.w. (%) SR MILK Milk-kg 0, ,0 371 Fat-kg 4,4 11,6 19,9 14,0 Protein-kg 33,4 10,6 20,8 10,8 BEEF Net daily gain 7,3 3,6 9,3 2,9 Dressing perc. 4,6 1,5 2,9 0,4 EUROP grade 4,6 0,4 1,5-1,0 FITNESS Longevity 13,4 3,1 10,9 2,8 Persistency 2,0 1,7 4,3 2,0 Fertility 6,8-1,1 11,3-0,8 Calving ease dir. 1,8 0,3 1,1-0,1 Calving ease mat. 1,8 3,4 1,1 3,6 Rearing loss 4,0 1,1 2,6 +4,4% 0,5 rearing Stillbirth mat. 4,0 2,0 2,6 1,5 loss Udder health 9,7 1,7 8,7 1,2 Milking speed 2,0 3,7 3,1 4,3
38 GZW-Variants V0 (new corr.) V2 (new weights) V4 (adapted) e.w. (%) SR e.w. (%) SR e.w. (%) SR MILK Milk-kg 0, , ,0 308 Fat-kg 4,4 11,6 19,9 14,0 18,1 11,6 Protein-kg 33,4 10,6 20,8 10,8 18,9 9,0 BEEF Net daily gain 7,3 3,6 9,3 2,9 4,5 2,7 Dressing perc. 4,6 1,5 2,9 0,4 2,0 1,0 EUROP grade 4,6 0,4 1,5-1,0 8,5 0,0 FITNESS Longevity 13,4 3,1 10,9 2,8 10,0 4,2 Persistency 2,0 1,7 4,3 2,0 3,0 2,2 Fertility 6,8-1,1 11,3-0,8 14,0 0,5 Calving ease dir. 1,8 0,3 1,1-0,1 1,0 0,6 Calving ease mat. 1,8 3,4 1,1 3,6 1,0 3,7 Rearing loss 4,0 1,1 2,6 0,5 8,0 5,2 Stillbirth mat. 4,0 2,0 2,6 1,5 - - Udder health 9,7 1,7 8,7 1,2 10,0 2,2 Milking speed 2,0 3,7 3,1 4,3 1,0 3,2
39 Variant 4
40 GZW-Variants Conclusions no significant changes necessary! not possible to satisfy all desires!
41 Timetable
42 Timetable Beratender Ausschuss ZWS (23.9.): Decision on new correlations, general method and EBV-changes (e.g. rearing loss) Meetings with breeding organisations: 16.9.: CZ 25.9.: AT (?) 13./14./16.10.: Bavaria : joint meeting à decision (Salzburg) : public seminar (ZAR-Seminar, Salzburg) Introduction: April 2016
43 THANK YOU FOR YOUR ATTENTION!
44
45 Methode Ducrocq Ped Fett-kg Daten YD/drZW Ped Ped Daten Eiw-kg YD/drZW Ped Daten GZW ND YD/drZW Ped... Daten ökonom. Gew..1 KVLpat YD/drZW
46 Genet. Korrelationen in GZW (Stand bis 2015) Fkg Ekg NTZ AUS HKL ND Pers FRW KVLp KVLm TOTp TOTm EGW DMG Fkg 1,00 Ekg 0,85 1,00 NTZ 0,10 0,10 1,00 AUS -0,15-0,15 0,51 1,00 HKL -0,05-0,05 0,46 0,59 1,00 ND -0,10-0,10-0,10-0,10 1,00 Pers 0,10 1,00 FRW -0,20-0,20-0,10 0,10 0,20 1,00 KVLp -0,10-0,10-0,10-0,10 1,00 KVLm 0,10 0,10 0,10 0,15-0,35 1,00 TOTp -0,10-0,10 0,70 1,00 TOTm 0,15 0,60-0,10 1,00 EGW -0,25-0,25 0,10 0,10 0,10 1,00 DMG 0,25 0,25-0,20 1,00
47 Genet. Korrelationen in GZW (neu - vorläufig!) Fkg Ekg NTZ AUS HKL ND Pers FRW KVLp KVLm AUF EGW DMG Fkg 1,00 Ekg 0,75 1,00 NTZ 0,00 0,10 1,00 AUS -0,15-0,15 0,50 1,00 HKL -0,20-0,15 0,45 0,55 1,00 ND -0,25-0,25-0,10 0,15 0,00 1,00 Pers -0,15-0,15-0,10-0,10-0,10 0,50 1,00 FRW -0,40-0,40-0,10-0,05-0,10 0,50 0,20 1,00 KVLp 0,00 0,00-0,20-0,15-0,15 0,00 0,00 0,00 1,00 KVLm 0,10 0,10 0,00-0,05-0,10 0,15 0,00 0,40-0,25 1,00 AUF 0,10 0,10 0,00 0,00-0,10 0,20 0,00 0,10 0,45 0,10 1,00 EGW -0,25-0,25 0,00 0,00-0,10 0,50 0,30 0,10 0,00 0,00 0,10 1,00 DMG 0,35 0,35 0,00-0,10-0,10 0,00-0,10-0,10 0,00 0,00 0,00-0,20 1,00
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