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Information × Registration Number 0224U001219, 0121U107641 , R & D reports Title Development of methods for evaluating feed in milk products by metabolic energy of feed protein for cows of different productivity levels popup.stage_title Head Kulyk Mykhailo F., Доктор сільськогосподарських наук Registration Date 19-01-2024 Organization Institute of Feed and Agriculture of Podillya of the National Academy of Agrarian Sciences of Ukraine popup.description2  A method of evaluation of feed in milk production based on the metabolic energy of protein and different protein content in 1 liter of milk has been developed. This method of evaluation of feed in milk production of 1 kg of dry matter of feed is the product of 3.1 MJ of energy of 1 liter of milk by the ratio of the gross energy of crude protein of the feed to the gross energy of crude fiber (%) in a diet with hemicellulose of the evaluated feed in the amount of 1/2 of the content of crude fiber (%) in it. The confirming factor of such assessment in the milk production of 1 kg of dry matter of feed is the cost of crude protein for the production of 1 liter of milk. Thus, when evaluating alfalfa in the early phase of budding without taking into account the hemicellulose content in the amount of 1/2 of the crude fiber content, milk production will be 5.9 liters from cows with a 17.0% crude fiber content in the diet, and the consumption of crude protein for the production of 1 liter of milk will be 43 g with a crude protein utilization rate of 69% for the synthesis of milk protein with a protein content of 3.0%. In a cow body such a level of use of raw protein of the green mass of alfalfa in metabolic processes is impossible. Crude alfalfa protein is found in the structure of cellulose and hemicellulose fibers. A high level of consumption of crude protein for the synthesis of milk protein is characteristic of concentrated feeds when they are used in feeding high-yielding cows Product Description popup.authors Vygovska Iryna O Gonchar Lesia O Kulyk Mykhailo F. popup.nrat_date 2024-01-19 Close