Effect of DGAT1 and TG gene polymorphisms on intramuscular fat and on milk production traits in different cattle breeds in Hungary.
The objective of this study was to estimate the effect of the thyroglobulin (TG) locus on beef quality traits in some beef cattle breeds and to investigate the effect of the DGAT1 locus on milk production traits in the Hungarian Holstein Friesian population. TG and DGAT1 genotypes were determined by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assay. At the TG locus TT bulls showed the highest fat percentage values in the longissimus dorsi muscle (m. longissimus dorsi); the difference between CC and TT genotypes was significant. DGAT1 GC/GC cows had the highest milk, fat and protein yield values. Due to the relatively small number of GC/GC cows the difference proved to be significant only between AA/AA and AA/GC genotypes.
Anton
István
I
Research Institute for Animal Breeding and Nutrition, H-2053 Herceghalom, Hungary. istvan.anton@atk.hu
Kovács
Katalin
K
Fésüs
László
L
Várhegyi
József
J
Lehel
László
L
Hajda
Zoltán
Z
Polgár
J Péter
JP
Szabó
Ferenc
F
Zsolnai
Attila
A
D000273:Adipose Tissue / Q000254:growth & development*; D000818:Animals; D002417:Cattle / Q000235:genetics / Q000254:growth & development / Q000502:physiology*; D004247:DNA / Q000737:chemistry / Q000235:genetics; D051048:Diacylglycerol O-Acyltransferase / Q000235:genetics*; D005260:Female; D007774:Lactation; D016018:Least-Squares Analysis; D008297:Male; D008460:Meat; D008892:Milk / Q000378:metabolism*; D018482:Muscle, Skeletal / Q000254:growth & development*; D016133:Polymerase Chain Reaction / Q000662:veterinary; D011110:Polymorphism, Genetic; D012150:Polymorphism, Restriction Fragment Length; D013954:Thyroglobulin / Q000235:genetics*
D004247:DNA; D013954:Thyroglobulin; D051048:Diacylglycerol O-Acyltransferase