ORIGINAL PAPER
GH and CSN3 gene polymorphisms and their
impact on milk traits in cattle
1 |
August Cieszkowski Agricultural University of Poznań,
Department of Genetics and Animal Breeding,
Wołyńska 33, 60-637 Poznań, Poland |
J. Anim. Feed Sci. 2002;11(1):39–45
Publication date: 2002-01-31
KEYWORDS
ABSTRACT
Associations of milk production traits with growth hormone (L/V) and K-casein (A/B) gene
polymorphisms were investigated in this study. Official breeding values of genotyped 99 A l bulls for
milk, protein, fat yields as well as fat and protein contents were used to study genotype effects on the
production traits. Effects of four single-locus genotypes (LL, LV, AA and AB) and four two-loci
genotypes (AALL, AALV, ABLL and ABLV) were estimated. The AB genotype showed an advantage over the AA homozygote in terms of fat and protein contents. No significant relationships
between the GH polymorphism and the breeding values were found. The analysis of the effect of two-loci genotype reflected the relationships observed for single-locus analysis and ABLL and ABLV
genotypes were related to higher breeding values for fat (ABLV) and protein (ABLV and ABLL)
contents. The contradictory effects of the studied genetic variants are discussed.
CORRESPONDING AUTHOR
M. Świtoński
August Cieszkowski Agricultural University of Poznań,
Department of Genetics and Animal Breeding,
Wołyńska 33, 60-637 Poznań, Poland
CITATIONS (5):
1. |
Effect of polymorphism of milk protein and hormone genes on milk productivity of black pied cows L. A. Kalashnikova, Ya. A. Khabibrakhmanova, A. Sh. Tinaev Russian Agricultural Sciences
|
2. |
Interrelationship of growth hormone AluI polymorphism and hyperketonemia with plasma hormones and metabolites in the beginning of lactation in dairy cows O. Balogh, K. Kovács, M. Kulcsár, A. Gáspárdy, H. Fébel, A. Zsolnai, L. Fésüs, C. Delavaud, Y. Chilliard, R.O. Gilbert, Gy. Huszenicza Livestock Science
|
3. |
Analysis of population differentiation in North Eurasian cattle (Bos taurus) using single nucleotide polymorphisms in three genes associated with production traits M. H. Li, T. Adamowicz, M. Switonski, I. Ammosov, Z. Ivanova, T. Kiselyova, R. Popov, J. Kantanen Animal Genetics
|
4. |
AluI polymorphism of the bovine growth hormone (GH) gene, resumption of ovarian cyclicity, milk production and loss of body condition at the onset of lactation in dairy cows O. Balogh, K. Kovács, M. Kulcsár, A. Gáspárdy, A. Zsolnai, L. Kátai, A. Pécsi, L. Fésüs, W.R. Butler, Gy. Huszenicza Theriogenology
|
5. |
Assessment of GH1, CAPN1 and CAST polymorphisms as markers of carcass and meat traits in Bos indicus and Bos taurus–Bos indicus cross beef cattle Rogério Curi, Luis Chardulo, Juliana Giusti, Antonio Silveira, Cyntia Martins, Oliveira de Meat Science
|