Association of selected genes with milk fat in two breeds of cattle

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12220%2F17%3A43896149" target="_blank" >RIV/60076658:12220/17:43896149 - isvavai.cz</a>

Výsledek na webu

<a href="https://mnet.mendelu.cz/mendelnet2017/mnet_2017_full.pdf" target="_blank" >https://mnet.mendelu.cz/mendelnet2017/mnet_2017_full.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Association of selected genes with milk fat in two breeds of cattle

Popis výsledku v původním jazyce

The aim of the work was to evaluate genotype and allelic frequencies of selected genes affecting milk fat synthesis and to investigate possible association between gene polymorphisms and milk production traits. For this purpose, the analysis of DGAT1 (diacylglycerol acyltransferase 1), FASN (fatty acid synthase) and LEP (leptin) was carried out on 754 dairy cows distributed in five farms located in the Czech Republic. The tested animals were divided into three groups: Czech Fleckvieh (CF; n=266), Holstein (H; n=329) and crossbreds (CB; n=159, with 87% of CF crossbreeds). The dominant genotypes for all observed groups were: AA genotype for DGAT1 gene (0.962, 0.973 and 0.912; p&lt;0.01), GG genotype for FASN gene (0.770, 0.662 and 0.774; p&lt;0.01), and MM genotype for LEP gene (0.714, 0.783 and 0.826; p&gt;0.05). The evaluation of milk production traits in the first lactation has shown, that the highest fat yield was found out in dairy cows with genotypes AA (327 kg), AG (330 kg) and MM (328 kg). The differences were statistically significant only for DGAT1 gene. These results suggested, that milk from dairy cows with DGAT1 gene A allelic variant would be more appropriate for the production of dairy products (butter, cheeses).

Název v anglickém jazyce

Association of selected genes with milk fat in two breeds of cattle

Popis výsledku anglicky

The aim of the work was to evaluate genotype and allelic frequencies of selected genes affecting milk fat synthesis and to investigate possible association between gene polymorphisms and milk production traits. For this purpose, the analysis of DGAT1 (diacylglycerol acyltransferase 1), FASN (fatty acid synthase) and LEP (leptin) was carried out on 754 dairy cows distributed in five farms located in the Czech Republic. The tested animals were divided into three groups: Czech Fleckvieh (CF; n=266), Holstein (H; n=329) and crossbreds (CB; n=159, with 87% of CF crossbreeds). The dominant genotypes for all observed groups were: AA genotype for DGAT1 gene (0.962, 0.973 and 0.912; p&lt;0.01), GG genotype for FASN gene (0.770, 0.662 and 0.774; p&lt;0.01), and MM genotype for LEP gene (0.714, 0.783 and 0.826; p&gt;0.05). The evaluation of milk production traits in the first lactation has shown, that the highest fat yield was found out in dairy cows with genotypes AA (327 kg), AG (330 kg) and MM (328 kg). The differences were statistically significant only for DGAT1 gene. These results suggested, that milk from dairy cows with DGAT1 gene A allelic variant would be more appropriate for the production of dairy products (butter, cheeses).

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

40201 - Animal and dairy science; (Animal biotechnology to be 4.4)

Projekt

<a href="/cs/project/QJ1510336" target="_blank" >QJ1510336: Výzkum a podpora produkce zdravotně a spotřebitelsky benefitních mléčných výrobků cílenou selekcí a modifikací profilu mastných kyselin mléčného tuku</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

MendelNet 2017: Proceedings of 24th International PhD Students Conference

ISBN

978-80-7509-529-9

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

6

Strana od-do

696-701

Název nakladatele

Mendelova univerzita v Brně

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

8. 11. 2017

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000440194500124