Effect of Stat1 Variants on Milk Production Traits in Esfahan Holstein Cows
Authors
Abstract:
STATs are a family of latent transcription factors that reside in the cytoplasm of resting cells. The STAT1 transcription factor gene located on the chromosome 2 at interval 60 to 63 cM. This factor upon stimulation with INF gamma, dimerizes and translocate to the nucleus where mediates transcriptional regulation. In this study, we estimated the allele and genotype frequencies of STAT1/Pag1 gene polymorphism and examined the association whit milk yield (305-day milk yield) and milk component (fat and protein percentage) traits. DNA was isolated from 317 Holstein cows of five different herds. A 314 bp fragment in STAT1 gene was amplified and the animals were genotyped using RFLP-PCR technique. Seven genotypes including DD (89 animals), BB (25 animals), CC (11 animals), AC (15 animals), BC (9 animals), CD (164 animals) and BD (4 animals) were identified. Frequencies of A, B, C, and D alleles were estimated to be 0.021, 0.101, 0.332 and 0.546, respectively. Association of STAT1/Pag1 genotypes with percentage of fat in the milk was relatively high (P < 0.05); the DD genotype was superior to other groups. But corrected milk production for 305 days and protein percentage of the milk did not differ among all groups (P > 0.01). We concluded that this marker should be considered for milk component (fat percentage) selection in Holstein dairy cows
similar resources
effect of stat1 variants on milk production traits in esfahan holstein cows
stats are a family of latent transcription factors that reside in the cytoplasm of resting cells. the stat1 transcription factor gene located on the chromosome 2 at interval 60 to 63 cm. this factor upon stimulation with inf gamma, dimerizes and translocate to the nucleus where mediates transcriptional regulation. in this study, we estimated the allele and genotype frequencies of stat1/pag1 gen...
full textEstimation of Economic Values for Fertility, Stillbirth and Milk Production Traits in Iranian Holstein Dairy Cows
The objective of present study was to derive the economic values for number of inseminations to conception, calving interval, milk yield and stillbirth, using economic data of 10 Iranian Holstein herds. The economic values were derived by using the profit function methods and differentiating a profit equation with respect to the traits of interest. The cow fertility costs herd amortization or r...
full textSLC27A1 SNPs in relation to breeding value of milk production traits in Polish Holstein-Friesian cows*
1 Department of Genetics and Animal Breeding, West Pomeranian University of Technology in Szczecin, Doktora Judyma 6, 71-466 Szczecin, Poland 2 Department of Animal Genetics and Animal Breeding, National Research Institute of Animal Production, Krakowska 1, 32-083 Balice/Kraków, Poland 3 Department of Genetics, Wrocław University of Environmental and Life Sciences, Kożuchowska 7, 51-631 Wrocław...
full textEffect of kappa-casein and beta-lactoglobulin loci on milk production traits and reproductive performance of Holstein cows.
The effects of kappa-casein (kappa-CN) and beta-lactoglobulin (beta-LG) loci on milk production traits (milk, fat, protein, and lactose yield, fat, protein, and lactose content) and reproductive performance (gestation length, calving interval, age at first and second calving, number of services per conception) was estimated for 278 Holstein cows in the first 2 lactations. Genotypes of kappa-CN ...
full textMy Resources
Journal title
volume 1 issue 8
pages 851- 857
publication date 2013-08-01
By following a journal you will be notified via email when a new issue of this journal is published.
Keywords
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023