ALL libraries (COBIB.SI union bibliographic/catalogue database)
13.
Effect of PrP genotype on milk traits in Bovška sheep
Kastelic, Miran ; Horvat, Simon ; Kompan, Drago
The aim of this study was to evaluate the effect of PrP genotype on milk traits in the Slovenian autochthonous Bovška sheep breed. The estimated population size is 3 700 animals, half of which are ...included in the selection programme. Genetic resistance for scarpie, a well known prion disease, is determined by the genotype at the PrP locus. In 2003, the Slovenian national Scrapie programme following EU regulations was introduced to control scrapie by selectinh out of the less resistant genotypes and until 2008, a total of 1 875 ewes was genotyped. This study determined frequences of PrP alleles in Bovška sheep, AHQ 17.32%, ARH 7.30%, ARQ 57,14%, ARR 17.12% and VRQ 1.12%, which were very similar to frequencies in other European breeds. The PrP genotype had a significant effect on milk, protein and lactose yield produced in lactation, but the productivity of the most resistant ARR/ARR homozygotes was similar to breed average and did not statistically differ from other genotypes. Heterozygotes AHQ/ARH, AHQ/ARQ and ARH/ARQ exhibited significantly higher productivity compared to respective homozygotes but not from the most resistant ARR/ARR genotype. it is expected therefore that increased frequency of the ARR allele or even its exclusivity will not directly influence the productivity of the breed. However, a careful management programme favouring resistant PrP genotypes should be implemented to reduce potential negative effects of productivity due to reduced selelction potential or inbreeding.
It was not necessary to add the material to the shelf.
Bibliographic material was successfully added on shelf.
Adding bibliographical material on shelf was not successful.
Material is already on the shelf.
Permalink
URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year
Impact factor
Edition
Category
Classification
JCR
SNIP
JCR
SNIP
JCR
SNIP
JCR
SNIP
Select the library membership card:
DRS,
in which the journal is indexed
Database name
Field
Year
Links to authors' personal bibliographies
Links to information on researchers in the SICRIS system
Subject headings in COBISS General List of Subject Headings
Select pickup location
The material from the parent unit is free. If the material is delivered to the pickup location from another unit, the library may charge you for this service.
