Form GE

DESCRIPTION OF NATIONAL GENETIC EVALUATION SYSTEMS

Country (or countries)	Uruguay	
Main trait group1 NOTE! Only one trait group per form!	Female fertility: daughter pregnancy rate (DPR)	
Breed(s)	Holstein	
Trait definition(s) and unit(s) of measurement2 Attach an appendix if needed	DPR: Days open (confirmed by next parity) expressed as daughter pregnancy rate 	
Method of measuring and collecting data	Milk recording national system	
Time period for data inclusion	Since 1990	
Age groups (e.g. parities) included	First 5 Parities	
Other criteria (data edits) for inclusion of records	Age at calving,
Cows with sire or dam 
Days open between 20 and 365 days	
Criteria for extension of records (if applicable)	NA	
Sire categories	All sires	
Environmental effects3, pre-adjustments 		
Method (model) of genetic evaluation3	ST-RP-AM	
Environmental effects3 in the genetic evaluation model	Hear-year-month of calving-Lact (1,2+) (F)
Age within lactation (F)
Permanent (R)	
Adjustment for heterogeneous variance in evaluation model	no	
Use of genetic groups and relationships	Unknown parents group based on origin (domestic, imported), sex, and year of birth	
Blending of foreign/Interbull information in evaluation	no	
Genetic parameters in the evaluation	see Appendix GE 	
System validation	Interbull trend test methods 1 and 3, correlations of proofs post evaluations	
Expression of genetic evaluations If standardised (e.g. RBV), give standardisation formula in the appendix	DEP (ETA)	
Definition of genetic reference base
Next base change	All cows with days open born in 2010
Next base change: 2020	
Calculation of reliability	Approximation of prediction error variances based on Tier and Meyer, 2004	
Criteria for official publication of evaluations	Rel 60 % , Herds >=3, Daughters >=10	
Number of evaluations / publications per year	3	
Use in total merit index4	IEP = -0.037* DEP Milk  + 0.288 *DEP Fat + 1.977 * DEP Prot + 2.298 DEP DPR
IEP is standardized to mean 100 and st. dev. 10 	
Anticipated changes in the near future		
Key reference on methodology applied	VanRaden et al., 2004 JDS 87:2285:2292
Tier and Meyer 2004 JABG 121:77:89	
Key organisation: name, address, phone, fax, e-mail, web site	Mejoramiento y Control Lechero Uruguayo (MU)
Nueva York 1673, Montevideo, Uruguay
info@mu.org.uy

National Genetic Evaluation Centre:
Instituto Nacional de Investigación Agropecuaria
INIA - Las Brujas, Canelones, Uruguay
Ph. +598 23677641
email: iaguilar@inia.org.uy

Web site sires breeding values:
www.geneticalechera.com.uy
	
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):	Uruguay	
Main trait group:	Female Fertility: DPR	
Breed (repeat as necessary):	Holstein	

Trait	Definition	ITBa	h2b	genetic
varianceb	official proof
standardisation formulac	
Trait 2 c2	DPR	x	0.05	9.93		
Trait 4 int	DPR	x	0.05	9.93		

						

						

						

						

						
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.

Form GE	Appendix CA

Parameters for national genetic evaluations for calving traits as provided to Interbull

Country (or countries):	Uruguay	
Main trait group:	Female Fertility	
Breed(s):	Holstein	

Trait	h2	genetic
variance	official proof
standardisation formulaa	
Heifer conception
				
Cow recycling
				
Lactating cows ability to conceive (1)
				
Lactating cows ability to conceive (2)	0.05	9,93		
Interval traits
	0.05	9.93		
a	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.