'Additive feed' of cattle includes _____.

Reason: Additive feed of cattle includes micronutrients which promote the health and milk output of dairy animals. Micronutrients are the nutrients needed in small quantities. These include antibiotics, hormones, dietary minerals e.g. iron, cobalt, chromium etc.  needed by body while macronutrients are required in large quantities e.g. carbohydrates, proteins and fats. Fibres are the indigestible part of foods which add bulk to the diet and speed up the passage of foods through the digestive tract. Macronutrients are required in large quantities e.g. carbohydrates, proteins and fats. Concentrates are the foods which are low in fibre and contain relatively high levels of protein and other nutrients like carbohydrates and minerals.