Yayınlanmış 1 Ocak 2012 | Sürüm v1
Dergi makalesi Açık

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

  • 1. Univ Kaposvar, Kaposvar, Hungary
  • 2. Univ Pannonia, Georgikon Fac Agr Keszthely, Veszprem, Hungary
  • 3. Leibniz Inst Farm Anim Biol FBN, D-18196 Dummerstorf, Germany

Açıklama

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 IT 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.

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