FERTIBOL IS THE BEST CHOICE!
Fertibol is a suspension with calcium, phosphorus and extra vitamins A, D and E. This white suspension not only creates perfect structured eggs but provides a solid constitution and a balanced growth of the skeleton of your young birds.
Fertibol is an excellent source of calcium and phosphorus:
egg shells contain 97% calciumcarbonate
calcium and phosphorus account for 90% of the total mass of minerals contained in the body
grains do not contain enough calcium