IGF-I gene polymorphism, but not its blood concentration, is associated with milk fat and protein in Holstein dairy cows
“IGF-I gene polymorphism, but not its blood concentration, is associated with milk fat and protein in Holstein dairy cows”, vol. 9, pp. 1726-1734, 2010.
, We estimated the allele and genotype frequencies of IGF-I/SnaBI gene polymorphism and the concentration of this protein in Holstein dairy cows. We also examined the association with milk yield (305-day milk yield) and milk components (fat and protein percentage, and 305-day milk protein and fat yield). Blood IGF-I levels were measured and genotyping was performed on 250 Holstein cows of four different herds.