Vis enkel innførsel

dc.contributor.authorTjølsen, Aslak
dc.date.accessioned2021-09-02T00:04:29Z
dc.date.available2021-09-02T00:04:29Z
dc.date.issued2021-06-17
dc.date.submitted2021-08-31T22:00:08Z
dc.identifier.urihttps://hdl.handle.net/11250/2772351
dc.description.abstractNew emerging strategies in the production of Atlantic salmon (Salmo salar), for instance post-smolt and big smolt in land-based facilities experience maturation. High production rates, such as 24 hours photoperiods and high temperatures combined with full rations of feed, promote post-smolt maturation (“jacking”). The gene vgll3 regulate the weight at which maturation happens. Fish with the allele E (early) enter puberty earlier than fish with the allele L (late). As there are two alleles in each gene, we get the three genotypes EE, EL and LL. Eggs from three heterozygote mothers have been fertilised by a heterozygote male, producing three families all with theoretical 25% EE, 50% EL and 25% LL. The study finds that the allele E promotes maturation at a smaller size than the L allele, meaning EE fish mature first, then EL and lastly LL. Findings in this study reinforce the idea that EE fish mature earlier than EL, and EL fish mature earlier than LL. As salinity and maturation have been linked previously, this study finds that salinity does affect testis growth but does not affect jacking.
dc.language.isonob
dc.publisherThe University of Bergen
dc.rightsCopyright the Author. All rights reserved
dc.subjectsalinity
dc.subjectAtlantic Salmon
dc.subjectpuberty
dc.subjectvgll3
dc.subjectsexual maturation
dc.subjectall-male
dc.titleEffects of vgll3 on maturation and its interaction with salinity in Atlantic salmon (Salmo salar, L)
dc.typeMaster thesis
dc.date.updated2021-08-31T22:00:08Z
dc.rights.holderCopyright the Author. All rights reserved
dc.description.degreeMasteroppgave i biologi
dc.description.localcodeBIO399
dc.description.localcodeMAMN-BIO
dc.description.localcodeMAMN-HAVSJ
dc.subject.nus751999
fs.subjectcodeBIO399
fs.unitcode12-60-0


Tilhørende fil(er)

Thumbnail

Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel