WAEC Agricultural Science 1993 Question 51

Cracking of eggs laid by a flock of layers in a farm can be corrected by

1. A.addition of iodine to the water supply
2. B.increasing the level of vitamin D in mash
3. C.increasing the quantity of calcium in mash
4. D.increasing the amount of calcium, phosphorus and vitamin D in their feed
5. E.increasing carotene and calcium level of the mash.