PERFORMANCE RECORDING OF GOTLAND SHEEP 

Here is an overview of all data collected in our Gotland sheep flock for performance recording.

 

BIRTH PARAMETERS

  • No of lambs born

  • Sex

  • Ear tag / Id no registration (individual, trace back to flock no)​

  • Recording of litter data for each ewe + ear tag no  of each lamb 

  • Registration of lamb ear tag no links each lamb to pedigree /background data for sire/dam

WEIGHT PARAMETERS

  • Birth weight

  • Weight @ 60 days

  • Weight @110 days​

WOOL PARAMETERS

1. Colour

a) Quantitative Colour i.e the (mainly) visible colour.

b) Qualitative Colour: Uniformity of the colour over whole body and full wool length

2. Curl      a) Size - Quantitative   b) Shape - Qualitative

3. Wool Quality (qualitative)  

4. Wool Distribution (quantitative)

5. Overall / Total Score

    Overall summary of the wool & pelt quality

 

BODY CONFORMATION PARAMETERS

  • Body conformation 110 days

  • Fat content 110 days

  • Body conformation at slaughter (recorded at slaughter, autoreported from most meat processors to ElitLamm)

  • Fat content of carcass (recorded at slaughter,mainly autoreported)

 

OTHER PARAMETERS RECORDED FOR REGISTERED GOTLAND SHEEP

FERTILITY & GROWTH RATE PARAMETERS

* Fertility 1st lambing / 2nd and later lambing

* Growth rate to 60 days  (weight recorded at birth & 60 days)

* Growth rate to 110 days (weight recorded at 110 days)

* Growth rate to slaughter (weight recorded at slaughter)*

Our performance recording is based on the common Swedish system for performance recording of registered Gotlands..

Sweden has 4 different recording schemes: Pelt breeds

Pelt breeds, i.e Gotlands & Leicester  (Swedish developed variant of white L.longwool) are recorded, using all the parameters above.

Wool breeds, such as Finnsheep, Rya (not bred for pelts/furskins) have a similar scheme but separate wool evaluation parameters.

Registered Meat breeds  & Cross breeds record same data, except for the wool parameters.

Estimated Breeding Values in Sweden are breed specific and a registered individual is compared against a large reference population within the breed (normally all registered sheep of the same breed, born within the last 10 years). 

Cross breed sheep get their own EBV´s compared to a specific reference population. 

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