A farmer noticed the laying of soft-shelled eggs by a flock of lavers. Which of the following minerals is likely deficient in the diet of the layers?

Based on the symptoms described, the mineral that is likely deficient in the diet of the layers is calcium. Calcium is an essential mineral that is necessary for many bodily functions, including the formation of strong bones and teeth. It is also essential for the proper functioning of the nervous system, muscles, and cardiovascular system. Soft-shelled eggs are a common symptom of calcium deficiency in laying hens. Calcium is required to form the hard, protective shell of an egg. When a hen does not get enough calcium in her diet, the shell of her eggs may become thin, soft, or even absent. Therefore, based on the given symptoms, it is likely that the flock of layers is not getting enough calcium in their diet, which is causing them to lay soft-shelled eggs.