Status as of: (2016-12-05) 
Form GENO
DESCRIPTION OF NATIONAL GENOMIC EVALUATION SYSTEMS
Country (or countries) 	Poland	
Main trait groupa. 
NOTE. Only one trait group per form! 	Fertility	
Breed(s) 	Holstein	
Trait definition(s) and unit(s) of measurement
Attach an appendix if needed 	non return rate at 56 days for heifer (HCO) [%], Non return rate at 56 days for cows (CC1) [%], interval from calving to first insemination (CRC) [days], days open (INT) [days]	
Source of genotypes (chips used) 	Illumina BovineSNP50 Genotyping BeadChip	
Imputation method for missing genotypes 	Based on combine population and pedigree haplotyping method (VanRaden et al., 2011) with several modifications.	
Propagation of genomic information to non-genotyped descendants and ancestors 	None	
Animals included in reference population (males, females, countries included, total number) 	Genotyped Holstein bulls from the Euro Genomics reference population. The total number of reference animals: non return rate for heifers (27 566), non return rate for cows (26 918), interval from calving to first insemination (28 233), days open (27 063)	
Source of phenotypic data (DYD, de-regressed proofs, national EBVs and/or MACE evaluations) 	Deregressed MACE evaluations. For bulls with missing MACE evaluations, national deregressed EBVs are used.	
Other criteria (data edits) for inclusion of records 	EDC ≥ 10; Missingness per individual > 10%; Call rate per SNP > 99%.	
Criteria for extension of records (if applicable) 	Not applicable.	
Sire categories 		
Genomic model (linear, Bayesian, polygenic effect, genotypes or haplotypes) 	Linear mixed model with random effects of 46 216 SNP genotypes and random polygenic effect assuming 40% of the total phenotypic variance.	
Blending of direct genomic value (DGV) with traditional EBV 	DGV is combined with EBV or male pedigree index (PI) to derive GEBV using the selection index theory.	
Environmental effects in the genetic evaluation model 	General mean (1 level).	
Adjustment for heterogeneous variance in evaluation model 	No adjustment.	
Computation of genomic reliability 	The reliability of DGV is calculated based on the Interbull validation results and is expressed as the squared Pearson correlation coefficient between DGV and deregressed EBV (DRP) divided by the average reliability of bulls’s daughters EBV. The reliability of GEBV is a combination of reliabilities of DGV and PA using the selection index theory.	
Blending of foreign/Interbull information in evaluation 	Foreign bulls from Euro Genomics are included into the reference group with Polish MACE scale.	
Genetic parameters in the evaluation 	Use Appendix GENO for heritability/genetic variance estimates; for multiple-trait genetic evaluations, provide genetic correlation estimates between traits separately. Use also appendices PR, CO, BCO, SM, LO, CA, as applicable, if you participate in the international genetic evaluations of Interbull 	
Expression of genetic evaluations
If standardized (e.g. RBV), give standardization formula in the appendix 	No standardizing.	
Definition of genetic reference base 	The same as in conventional genetic evaluation.	
Labeling of genomic evaluations 		
Criteria for official publication of evaluations 		
Number of evaluations / publications per year 	3	
Use in total merit index 	Fertility subindex is used in total merit index with weight of 15%.	
Anticipated changes in the near future 		
Key reference on methodology applied 		
Key organization: name, address, phone, fax, e-mail, web site 	National Research Institute of Animal Production
Krakowska 1, 32-083 Balice
Tel. (+4812) 3572500
e-mail: ocena.buhaje@izoo.krakow.pl
contact person: monika.skarwecka@izoo.krakow.pl
www.izoo.krakow.pl	
aEither: 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. 

System Validation
Approximate number of test bulls for this trait group:	3 205	
If including foreign reference bulls:
4-yr old de-regressed MACE EBVs, OR
Current de-regressed MACE EBVs
If including foreign test bulls (type of proof 21 or 22), provide the reason.	Current de-regressed MACE EBVs	
If using a truncation ≠ 4 years, provide the reason.	-	
If applying an age cutoff for test bulls ≠ (YYYY-8), provide the reason	2008	

Appendix GENO
	Parameters used in genetic/genomic evaluation 
Country (or countries): 	Poland	
Main trait group: 	Fertility	
Breed (repeat as necessary): 	Holstein	
Trait 	Definition 	ITBa 	h2b	Genetic varianceb	Official proof standardisation formulac 	
HCO	Maiden heiferr’s ability to conceive	X	0.020	100		
CC1	Lactating cow’s ability to conceive 1	X	0.021	100		
CC2	Lactating cow’s ability to conceive 2	X	0.021	100		
CRC	Lactating cow’s ability to start cycling	X	0.053	100		
INT	Lactating cow’s interval calving-conception	X	0.080	100		
aIndicate, with X, traits that are submitted to Interbull for international genetic evaluations.
bIf 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.
cExpressed 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.