Status as of: 2016-05-09

Form GE

DESCRIPTION OF NATIONAL GENETIC EVALUATION SYSTEMS

Country (or countries)	ITALY	
Main trait group1
NOTE! Only one trait group per form!	Fertility	
Breed(s)	BROWN SWISS	
Trait definition(s) and unit(s) of measurement2
Attach an appendix if needed	CF: period calving –first insemination
DO: days Open
CI:calving Intervall	
Method of measuring and collecting data	Insemination and calving date	
Time period for data inclusion	CF: since 2000
DO: days Open
CI: since 2000	
Age groups (e.g. parities) included	From1 to 9 parities	
Other criteria (data edits) for inclusion of records		
Criteria for extension of records (if applicable)		
Sire categories	All	
Environmental effects3, pre-adjustments 		
Method (model) of genetic evaluation3	Single traits animal model 	
Environmental effects3 in the genetic evaluation model	Number of parity
Animal
Permanent environmental
Season x Year
Herd x 3 years
	
Adjustment for heterogeneous variance in evaluation model	No	
Use of genetic groups and relationships	yes	
Blending of foreign/Interbull information in evaluation	no	
Genetic parameters in the evaluation	Use Appendix GE 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	
System validation	Method 1-3	
Expression of genetic evaluations
If standardised (e.g. RBV), give standardisation formula in the appendix	Mean 100 STD 12	
Definition of genetic reference base
Next base change	Rolling base, cows born 10-7 years before the genetic evaluation date	
Calculation of reliability		
Criteria for official publication of evaluations	CI: 25 daughters
CF-DO-CR: 10 DAUGHTERS	
Number of evaluations / publications per year	3 evaluations: april, august, december	
Use in total merit index4	ITE:
35*Protein kg + 8 *% protein + 10* Fat kg + 2 *% fat  – 5 *SCS + +10*ocs  + 10*milking speed + 10*dlo + 5 * ofl – 5 CI	
Anticipated changes in the near future		
Key reference on methodology applied		
Key organisation: name, address, phone, fax, e-mail, web site	Anarb 
Loc ferlina 204 Bussolengo Verona Italy
045/6760135
045/7156655
ricerca@anarb.it
attilio.rossoni@anarb.it
chiara.nicoletti@anarb.it
www.anarb.it
	
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):	Italy	
Main trait group:	Female Fertility	
Breed (repeat as necessary):	BSW	

Trait	Definition	ITBa	h2b	genetic
varianceb	official proof
standardisation formulac	
Lactating cow’s ability to start cycling	Interval calving first insemination	X	0.049 		 Official proof=
(((proof-7.5690) /10.4680)*12)+100
	
Lactating cow’s ability to conceive 2	Days open	X	0.060 		Official proof=(( (proof-(-4.3234)) /14.1182)*12)+100 	
Lactating cow’s interval calving-conception	Calving interval 	X	0.060 		 Official proof=(( (proof-(-12.1825)) /10.7973)*12)+100	

						
						
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):	ITALY	
Main trait group:	Female Fertility	
Breed(s):	BSW	

Trait	h2	genetic
variance	official proof
standardisation formulaa	
Lactating cow’s ability to start cycling	0.049 		Official proof=
(((proof-7.5690) /10.4680)*12)+100
	
Lactating cow’s ability to conceive 2	0.060 		Official proof=(( (proof-(-4.3234)) /14.1182)*12)+100 	
Lactating cow’s interval calving-conception	0.060 		Official proof=(( (proof-(-12.1825)) /10.7973)*12)+100	

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.