Efficiency of balancing feed rations of cows at milking by targeted mixed fodder-concentrates | Эффективность балансирования рационов кормления коров на раздое адресными комбикормами-концентратами
2010
Rajkhman, A.Ya., Belarus State Academy of Agriculture, Gorki (Belarus)
Belarusian mixed fodder industry continues to produce mixed fodder according to the universal recipes, which often fail to fit feeding rations in farm with different feed bases. They do not take into account peculiarities of making grass fodder, the quality of which can differ a lot. This leads to either surplus or deficit of nutrients in rations, and feeding adequacy reduces. With the help of computer modeling program 'Feeding rations constructor' a recipe of targeted mixed fodder for highly-productive cows at milking period is developed. Lactating cow ration during milking is analyzed. The cow taken into consideration is of 600 kg and have daily productiveness of milk 28 kg. Compound feed 'KK 61 C' value for high-yielding cows during stall period is displayed. Nutrients input by cows is analyzed. Expenses of nutritive substances per 1 kg of milk are calculated. Economic efficiency of milk producing during compound feed application is calculated. The following conclusions are made: substitution of the industrial compound feed by domestic grain mixed fodder allow to balance the exchange power, raw protein and sugar; economic efficiency amounts 9000 rubles per 1 hundred weight of milk.
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