Vitamin K3, also known as menaquinone, is essential for the carboxylation-dependent system of vitamin K in the animal organism (mainly in the liver, bones, testes, skin, kidneys and other tissues and organs) and is an indispensable factor in the synthesis of skeletal proteins (BGP).

Vitamin K3 can improve the anti-stress ability of aquaculture animals, improve immunity, increase production, and reduce mortality. Vitamin K3 can also prevent the weak body of livestock and poultry from bleeding under the skin. Adding vitamin K3 before and after the beak of the chick can reduce bleeding, accelerate wound healing, and accelerate growth.