Status as of: 2013-04-30

Form GE

DESCRIPTION OF NATIONAL GENETIC EVALUATION SYSTEMS

Country (or countries)	CROATIA	
Main trait group1
NOTE! Only one trait group per form!	PRODUCTION	
Breed(s)	Landrace, Large white, Duroc, Pietrain 	
Trait definition(s) and unit(s) of measurement2
Attach an appendix if needed	Backfat thickness (mm), time on test (days)
	
Method of measuring and collecting data	Ultrasound measuring of backfat thickness 
	
Time period for data inclusion	Field-test records from the 2000.	
Age groups included	From 180 to 210 days old 	
Other criteria (data edits) for inclusion of records	Records with backfat thickness >25 mm removed
Sows between 80 and 120 kg, and boars between 95 and 110 kg included	
Criteria for extension of records (if applicable)	No	
Sire categories	-	
Environmental effects3, pre-adjustments 	No	
Method (model) of genetic evaluation3	BT - BLUP- AM	
Environmental effects3 in the genetic evaluation model	F: - breed, sex, testing season
FR: body weight at the end of test nested within breed (for time on test)
R: - herd-year of testing, common litter environment, direct additive genetic effect	
Adjustment for heterogeneous variance in evaluation model	No	
Use of genetic groups and relationships	No	
Blending of foreign/Interbull information in evaluation	No	
Genetic parameters in the evaluation	see PAGE 3 for heritability/genetic variance estimates	
System validation	Means and SDs for all variables calculated; means and SDs of BV for rams and ewes	
Expression of genetic evaluations If standardised (e.g. RBV), give standardisation formula in the appendix	see PAGE 3 for heritability/genetic variance estimates	
Definition of genetic reference base
	Mean of pigs tested in last 60 weeks. 
	
Calculation of reliability	Calculated from additive genetic variance and prediction error variance (PEV, Mrode, 1996)	
Criteria for official publication of evaluations	Reliability >=50% (M) and >=50% (F)	
Number of evaluations / publications per year	Weakly period	
Use in total merit index4	Backfat thickness 30%, time on test 30%	
Anticipated changes in the near future		
Key reference on methodology applied		
Key organisation: name, address, phone, fax, e-mail, web site	Croatian Agency for Agriculture and Food, Svetošimunska cesta 24, 10000 Zagreb, Croatia, Phone: +385-1-2356- 933, marija.spehar@hapih.hr	
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 GE

Parameters used in genetic evaluation

Country (or countries):	CROATIA	
Main trait group:	PRODUCTION	
Breed (repeat as necessary):	Landrace, Large white, Duroc, Pietrain	

Trait	Definition	ITBa	h2b	genetic
varianceb	official proof
standardisation formulac	
Backfat thickness	Field-test record (mm)		0.26	1.1550		
Time on test	Field-test record (days)		0.08	52.7028		
a	Indicate, with X, traits that are submitted to Interbull for international genetic evaluations.
b	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.
c	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.