Vitamin K requirement of two VKORC1 resistant Norway rat (Rattus Norvegicus) strains common in Belgium:Y139F and L120Q
Vitamin K is an essential co-factor in the activation of several coagulation factors and plays an important role in blood coagulation. Resistance against anticoagulant rodenticides is based on a single nucleotide polymorphism in the VKORC1 gene. A pleiotropic effect of rodenticide resistance is an increased need for vitamin K. Therefore we tested homozygous resistant rats (Y139F, L120Q) for their vitamin K requirement by feeding six males and six females of each strain with a vitamin K deficient diet (Altromin) for two weeks, yet coprophagy was not prevented. Then on day 0,3,5,7,10,14 of the e... Mehr ...