In addition to proteins, carbohydrates and lipids, vitamins and minerals must be present in the diet of dogs. Some of them are already found in food products, and the deficiency requires replenishment due to special additives (top dressing, premixes, Supplements).
Feeding can be divided into two large groups: chemically synthesized and natural. Natural sources of minerals include finely ground egg shells, bone, meat and bone meal and fish meal, as well as calcium from shells of marine mollusks. Fish oil is traditionally used as a natural source of fat-soluble vitamins A, D, E. A useful feed supplement and sources of B vitamins is extract from yeast.
Keep in mind that the usefulness of such top dressing of natural origin is directly related to the quality of their natural sources. For example, fish oil can do much more harm than good, since marine fish are increasingly becoming a source of accumulation of hazardous substances (oil products, heavy metals, industrial poisons) in an environmental disaster. Continue reading