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The aim of this study was to examine the relationship between genotype two SNPs located in the promoter region of CYP19 gene and milk production traits. The study included 181 Jersey cows. The genotypes were identified by the PCRRFLP method. The frequencies of the most common alleles were as follows: A – 0.98 (CYP19/PvuII) and A – 0.94 (CYP19/Cfr13I). The results showed that there were no statistically...
The aim of the study was to investigate associations between SLC27A1 genotypes and estimated breeding value of milk production traits (milk, fat and protein yield, kg; fat and protein content, %) in the Polish Holstein-Friesian cows’ herd. Three single nucleotide polymorphisms were genotyped,the g.14996C>G. in the exon 3, g.14791C>T in exon 4 and g.14589A>G in exon 5 of SLC27A1 gene.The genotype...
The aim of this study was to investigate associations between SCD1 polymorphism and the estimated breeding value of milk production traits (milk, fat and protein yield, kg; fat and protein content, %) in the Polish Holstein-Friesian cows’ herd. The genotype and allele frequencies for g.10329C>T SNP in exon 5 of SCD1 gene were estimated in the examined herd. Statistical analysis revealed that studied...
The aim of this study is to estimate the associations between the ANXA9, FABP3, and FABP4 genotypes and the breeding value for milk production traits (yields of milk, protein, and fat, as well as protein and fat percentage) in 975 Polish Holstein-Friesian cows. The frequencies of genotypes and alleles were determined. Statistically significant relations between the ANXA9 SNP and the breeding value...
The aim of this study was to estimate the relations between the CRH-A145G polymorphism and milk production traits (yields of milk, protein, and fat, as well as protein and fat content) in 176 Jersey cows. The genotype and allele frequencies were estimated and they were as follows: AG – 0.31; GG – 0.69; A – 0.16; G – 0.84. Statistical analysis revealed that studied polymorphism significantly affected...
Celem prowadzonych badań było oszacowanie ewentualnych zależności pomiędzy genotypami TG/PsuI a wybranymi cechami użytkowości mlecznej (wydajność mleka, białka, i tłuszczu oraz zawartość białka i tłuszczu). Badaniami objęto 180 krów rasy jersey. Genotypy poszczególnych osobników oznaczano za pomocą metody PCR-RFLP. Frekwencja genotypów i alleli była następująca: CC – 053, CT – 0,44, CC – 0,03 oraz...
The aim of the study was to investigate how leptin R4C single nucleotide polymorphism (SNP) in the leptin gene affects the somatic cell count (SCC) in milk as well as milk production traits such as daily milk yield, fat content, protein content, lactose content, and dry matter content in milk. A total of 162 Polish Holstein- -Friesian (Red-White strain) cows were used in this study. The genotype and...
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