EFFECTIVENESS OF VITAMIN-MINERAL PREPARATIONS FOR CORRECTION METABOLIC PROCESSES IN PREGNANT COWS AND SUSTAINABILITY CALVESTO EXCHANGE AND GASTROINTESTINAL DISEASES
Processing pregnant cows preparations containing iodine and selenium and vitamine Е positively influences indicators of an albuminous exchange and natural resistance of animals, preventive maintenance at the calfs received from them development illnesses of insufficiency of iodine and selenium and diseases of digestive system.