Status as of: 2019-08-12

Form GE

DESCRIPTION OF NATIONAL GENETIC EVALUATION SYSTEMS

Country (or countries)	Czech Republic	
Main trait group1	Conformation	
Breed(s)	Holstein	
Trait definition(s) and unit(s) of measurement2
Attach an appendix if needed	see Appendix	
Method of measuring and collecting data	Scored by special technicians. Scale 1-9 (50-91 for overall scores).
Overall scores transformed into normal distribution for evaluation.	
Time period for data inclusion	Since 1995.	
Age groups (e.g. parities) included	Only classifications on 1st lactations are included.	
Other criteria (data edits) for inclusion of records	None.	
Criteria for extension of records (if applicable)	None.	
Sire categories	None.	
Environmental effects3, pre-adjustments 	None.	
Method (model) of genetic evaluation3	ST BLUP AM	
Environmental effects3 in the genetic evaluation model	HYS, HYS-classifier, classifier
(HYS = herd*year*month)	
Adjustment for heterogeneous variance in evaluation model	None.	
Use of genetic groups and relationships	Phantom parent groups defined according to blood of others breeds and birth year.	
Blending of foreign/Interbull information in evaluation	None.	
Genetic parameters in the evaluation	see Appendix	
System validation	Interbull trend validation method III.	
Expression of genetic evaluations
If standardised (e.g. RBV), give standardisation formula in the appendix	RBV (100;12)
(standardization formula in appendix)	
Definition of genetic reference base
Next base change	Bulls born in 2010.	
Calculation of reliability	Iterative method that estimates contributions from parents, own records and progeny.	
Criteria for official publication of evaluations	minimum number of herds = 10	
Number of evaluations / publications per year	6	
Use in total merit index4	TMI = 0.49*Production + 0.15*Fertility + 0.07*UdderHealth + 
  + 0.05*Longevity + 0.24*Conformation
TMI = 0.225*ProteinKG + 0.115*FatKG + 0.11*Protein% + 
  + 0.04*Fat% + 0.075* heifersCR+ 0.075*CowCR +   
  + 0.07*SomaticCells + 0.05*Longevity + 0.06*Feet&Legs +
  + 0.0225*FootAngle(#) + 0.01*RearLegRearView(#) 
  + 0.0175* Locomotion(#) + 0.0375*UdderDepth(#)  +
  + 0.025*ForeUdderAttachment(#)  + 0.0225*UdderSupport(#)  +
  + 0.0125*RearTeatPlacement(#)  + 0.01625*RearUdderHeight(#)  +         
  + 0.01625*TeatLength(#)
TMI is standardized to mean 100 and st. dev. 12. Traits marked as (#) are only for purpose of TMI computation reaching highest value in optimum for each trait (since 08/2019).	
Anticipated changes in the near future		
Key reference on methodology applied		
Key organisation: name, address, phone, fax, e-mail, web site	Czech Moravian Breeders’ Corporation
252 09 Hradistko, Benesovska123
Ph. ++420 257 896 444
Fax. ++420 257 740 491
e-mail: cmsch@cmsch.cz
web-site: www.cmsch.cz
               www.plemdat.cz	
1) Either: Production (e.g. milk, fat, protein), Conformation, Health (e.g. mastitis resistance, milk somatic cell, resistance to diseases other than mastitis), Longevity, Calving (e.g. stillbirth, calving ease), Female fertility (e.g. non-return rate, interval between reproductive events, number of AI’s, heat strength), Workability (e.g. milking speed, temperament), Beef production, Efficiency (e.g. body weight, energy balance, body conditioning score), or Other traits.
2) Indicate frequencies per category if the trait is categorical and specify transformation of data if practiced.
3) Use abbreviations for most common effects (see document with list of abbreviations at http://www-interbull.slu.se/service_documentation/General/list_of_abbreviations.rtf) and indicate random (R) or fixed (F).
4) Please give economic weights and indicate how they are expressed (preferably in genetic standard deviation units).

 Form GE	Appendix CO

Parameters for national genetic evaluations for conformation traits as provided to Interbull
(all breeds except Brown Swiss)

Country (or countries):	Czech Republic	
Main trait group:	Conformation	
Breed(s):	Holstein	

Trait	Definition	h2a	genetic
variancea	official proof
standardisation formulab	
Stature	See the Methodology	0.490	0.79390	See under the table	
Chest Width	of the Holstein	0.182	0.30855		
Body Depth	Word Association	0.247	0.42405		
Angularity		0.294	0.40621		
Rump Angle		0.316	0.45527		
Rump Width		0.400	0.68787		
Rear Leg Set		0.161	0.22245		
Rear Leg Rear View		0.140	0.31558		
Foot Angle		0.102	0.12172		
Fore Udder		0.238	0.58973		
Rear Udder Height		0.232	0.44848		
Udder Support		0.183	0.18783		
Udder Depth		0.316	0.57143		
Front Teat Placement		0.271	0.39137		
Teat Length		0.324	0.39389		
Rear Teat Placement		0.267	0.55604		
Overall Conformation Score		0.252	1.8767		
Overall Udder Score		0.197	3.4871		
Overall Feet & Leg Score		0.121	2.5055		
Locomotion		0.070	0.14121		
Body Condition Score		0.275	0.4049		
a	If repeated records are treated as separate traits, provide heritability estimates and genetic variances separately for each trait, as well as for all traits pooled, i.e. for the trait submitted to Interbull.
b	Expressed as follows:
StandEval=((eval-a)/b)*c+d where a=mean of the base adjustment, b=standard deviation of the base, c=standard deviation of expression (include sign if scale is reversed), and d=base of expression.

Note: All traits have:
a = average of bulls born in 1995, b = standard deviation of bulls born in 1995, c = 12, d = 100