In livestock and poultry feed, adding some feed additives can promote growth, increase meat, milk, and egg production, reduce feed consumption and prevent disease. However, some feed additives cannot be used at the same time.
Choline cannot be used with certain vitamins, calcium, and phosphorus at the same time. Choline is easily soluble in water and highly alkaline. It can destroy water-soluble vitamins such as vitamin C, vitamin B and pantothenic acid. In addition, phosphorus and calcium are easily absorbed in an acidic environment, but very little in an alkaline environment. Therefore, choline cannot be added with calcium powder, calcium hydrogen phosphate, etc.
Vitamin B1 cannot be used with penicillin at the same time, because the aqueous solution of vitamin B1 is weakly acidic, which will destroy the effect of penicillin.
Ferrous sulfate, ferrous chloride, and ferrous sulfide cannot be used simultaneously with vitamin A, vitamin D, vitamin E, vitamin B1, and vitamin B2. If used at the same time, the former will accelerate the oxidation and destruction process of the latter. Calcium carbonate cannot be used simultaneously with vitamin B1, vitamin B2, vitamin C, vitamin K1, vitamin K2, pantothenic acid, streptomycin, and oxytetracycline. Because calcium carbonate is strongly alkaline, the above-mentioned vitamins and other additives are easily destroyed in an alkaline environment.
Oxytetracycline cannot be used with penicillin and streptomycin at the same time. Because oxytetracycline is very acidic, it can destroy the disease-prevention and growth-promoting effects of penicillin and streptomycin.