Effect of DGAT1, leptin and TG gene polymorphisms on some milk production traits in different dairy cattle breeds in Hungary

István Anton, Katalin Kovács, Gabriella Holló, Valéria Farkas, Ferenc Szabó, István Egerszegi, József Rátky, Attila Zsolnai, Klaus Peter Br̈ssow

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The objective of this study was to estimate the effect of acylCoA-diacylglycerol-acyltransferase 1 (DGAT1), leptin and thyroglobulin (TG) loci on the milk fat, milk protein and milk yield in Holstein Friesian, Jersey and Hungarian Simmental cows. Leptin and DGAT1 genotypes were determined by qPCR assay, while TG genotypes were identified using the polymerase chain reaction-restriction fragment length polymorphism technique (PCR-RFLP). DGAT1 GC/GC cows had the highest 305-day milk yield values. Difference between AA/AA and GC/GC genotypes was significant (P<0.05). Leptin CC animals produced significantly higher 305-day milk protein percent values (P<0.05) than other genotypes in Hungarian Simmental breed. At TG locus TT cows showed the highest 305-day milk fat percent values, although differences between genotypes proved to be significant (P<0.05) only in Jersey breed.

Original languageEnglish
Pages (from-to)307-314
Number of pages8
JournalArchiv fur Tierzucht
Volume55
Issue number4
Publication statusPublished - Sep 27 2012

Keywords

  • DGAT1
  • Dairy cattle
  • Leptin
  • Milk fat
  • Milk protein
  • Milk yield
  • PCR-RFLP
  • QPCR
  • TG

ASJC Scopus subject areas

  • Food Animals
  • Animal Science and Zoology

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