Estimation of Genetic Parameters of Fatty Acids Composition in Flesh of Market Size Common Carp (Cyprinus carpio L.) and Their Relation to Performance Traits Revealed that Selective Breeding Can Indirectly Affect Flesh Quality

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F18%3A43897173" target="_blank" >RIV/60076658:12520/18:43897173 - isvavai.cz</a>

Alternative codes found

RIV/62157124:16270/18:43876421 RIV/60461373:22330/18:43916583

Result on the web

<a href="https://www.agriculturejournals.cz/publicFiles/252520.pdf" target="_blank" >https://www.agriculturejournals.cz/publicFiles/252520.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17221/30/2018-CJAS" target="_blank" >10.17221/30/2018-CJAS</a>

Result language

angličtina

Original language name

Estimation of Genetic Parameters of Fatty Acids Composition in Flesh of Market Size Common Carp (Cyprinus carpio L.) and Their Relation to Performance Traits Revealed that Selective Breeding Can Indirectly Affect Flesh Quality

Original language description

Fish are a rich source of omega-3 polyunsaturated fatty acids (n-3 PUFAs) and thus, they should be an integral part of human diet at least twice a week. As a result, high attention has been devoted to the improvement of fatty acids (FA) content in the flesh of farmed fish through nutrition. Conversely, there are very few data on the potential of selective breeding to improve FA composition in fish. We estimated genetic parameters of fillet fatty acid content and performance traits in market size common carp cultured under semi-intensive pond conditions. The experimental stock arose through factorial mating of 7 dams and 36 sires. All families were reared communally. Pedigree was reconstructed with microsatellite markers, and 158 individuals were dressed out and selected for flesh FA composition analysis. Heritability estimates of total muscle fat, FA composition in total fat (TF) (n-3 PUFA-TF, PUFA-TF, EPA-TF - eicosapentaenoic acid, n-6/n-3 - omega6/omega3 PUFA ratio), and most performance traits were moderately heritable (h(2) = 0.23-0.41), and body weight was highly heritable (h(2) = 0.62 +/- 0.20). Genetic correlations show that selection for faster growth would indirectly lead to fillet yield improvement (r(g) = 0.50-0.62) while having little impact on muscle fat (r(g) = 0.21). However, lipid quality in flesh would be affected: n-3 PUFA-TF would decrease and the n-6/n-3 PUFA ratio would increase. A likely interpretation is that faster growing genotypes consume more supplemental feed, which was poor in the beneficial FAs. For sustainable selective breeding, supplemental feed composition should be modified, so that faster growing carps would maintain an appropriate flesh quality.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10603 - Genetics and heredity (medical genetics to be 3)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Czech Journal of Animal Science : Živočišná výroba

ISSN

1212-1819

e-ISSN

—

Volume of the periodical

63

Issue of the periodical within the volume

7

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

12

Pages from-to

280-291

UT code for WoS article

000436202100005

EID of the result in the Scopus database

2-s2.0-85049323093