Abstract
Abstract. The study was carried out on 658 Polish Holstein Friesian cows. A transversion of A→C in the P1 promoter region of bovine IGF1 gene at position 977 bp upstream from the start codon in exon 1 was identified using ACRS-PCR method. Reverse primer introduced an artificial TasI restriction site. Three genotypes (AA, AC, CC) were found in the analysed herd of dairy cows occurred with a frequency of 0.766, 0.213 and 0.021, respectively. In the presented study, the statistically significant differences between individuals of different IGF1/TasI genotypes were found in milk, fat and protein yield. In the 2nd and 3rd lactations, the cows carrying the CC genotype produced more milk than the AA individuals (P≤0.05). In the case of protein and fat yield, similar tendencies were observed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
