Holstein evaluation, including data from: Danish Holstein, Danish Red Holstein, Swedish Holstein, Finnish Holstein, Finnish Ayrshire and Finn Cattle.
Red evaluation, including data from: Danish Red, Swedish Red, Finnish Ayrshire, Finnish Holstein and Finn Cattle
Jersey evaluation, including data from: Danish Jersey
Extraction dates
Dates for extraction of data from national databases are given in table 1.
Table 1 Dates for extraction of data from the national databases
|
Trait |
Denmark |
Finland |
Sweden |
|
Yield |
11.02.2008 |
13.02.2008 |
04.02.2008 |
|
Type, milk ability and temperament |
21.02.2008 |
13.02.2008 |
18.02.2008 |
|
Fertility |
12.02.2008 |
13.02.2008 |
08.02.2008 |
|
Udder health |
15.02.2008 |
13.02.2008 |
08.02.2008 |
|
Calving |
15.02.2008 |
13.02.2008 |
08.02.2008 |
News in relation to NAV genetic evaluation
Fertility
We have changed model for Jersey from a Danish national model to a NAV model – like the model used for RDC and Holstein
We have corrected two errors in relation to the fertility evaluation for RDC and Holstein:
· Coding in relation to Swedish Heat Strength data
· Coding in relation to Finnish fertility diseases
The errors have a negligible effect on the fertility index
No changes for all other traits
Genetic base
EBVs for Bulls and females are expressed to the same cow base. At this genetic evaluation include the genetic base (average 100) cows born from 15.1.2003 to 15.1.2005.
For functional traits sire models are used and EBVs for cows are not estimated. For functional traits the genetic base includes bulls, which are sire of present cows – see table 2.
Table 2. Definition of genetic base for cows and bulls
|
Trait |
Genetic base |
|
Yield, type, milkability and temperament
|
Cows born 15.3.2003 -15.3.2005
|
|
Fertility, calving and mastitis resistance |
Bulls born 15.3.1999-15.3.2001
|
NAV – frequency and timing of routine runs
NAV has 6 evaluations per year for all traits. The NAV evaluations are timed in a way so NAV can deliver updated EBVs to all the international evaluations. In table 3 the current and future NAV and Interbull release dates are shown.
Table 3. NAV and Interbull release dates in 2008. EBVs released at NAV dates with bold will be delivered to international genetic evaluation.
|
|
2008 |
|
Month |
NAV |
INTERBULL |
|
January |
15th |
First Tuesday after 11th |
|
February |
|
|
|
March |
15th |
|
|
April |
|
1st Tuesday |
|
May |
15th |
|
|
June |
|
|
|
July |
|
|
|
August |
15th |
3rd Tuesday |
|
September |
|
|
|
October |
15th |
|
|
November |
|
|
|
December |
1st |
|
You can get more information about the joint Nordic evaluation:
General about Nordic Cattle Genetic Evaluation: www.nordicebv.info
Contact person: Gert Pedersen Aamand, Ph.: +45 87405288 gap@landscentret.dk,
Denmark: www.landscentret.dk/nav
Contact person: Ulrik Sander Nielsen, Danish Cattle, Ph. +45 87405289, usn@landscentret.dk
Sweden: www.svenskmjolk.se
Contact person: Jan-Åke Eriksson, Swedish Dairy Association, Ph. +46 08-790 58 67
jan-ake.eriksson@svenskmjolk.se
Finland: www.faba.fi
Contact person: Jukka Pösö, Faba Breeding, Ph +358-(0)207472071 jukka.poso@faba.fi