[Modelling of dairy cattle feeding rations taking into account the technology of feed distribution]
2005
Rajkhman, A.Ya.(Belarus State Academy of Agriculture, Gorki (Belarus))
Principles of modeling of lactating cows rations taking into account the existing in the Republic of Belarus technologies of animal keeping and feed distribution were presented. Basic parameters of the model developed according to the principles of purpose programming were determined. The following basic peculiarities of rations modeling by means of goal programming taking into consideration the technological limitation of their structure were analysed: 1. development of milking cattle feeding rations obligatory required to take into account the potentialities of feed distribution technology; 2. application of goal modeling made it possible to calculate the optimal parameters in the conditions of dynamic feeds distribution inside the groups; 3. maximum parameters of protein and sugar delivery according to the standards were provided. Advantages of the analyzed approach in comparison with the linear programming used nowadays for rations optimization were shown. The regression quotations simplifying the procedure of determining the basic groups of feeds in rations for obtaining the desired concentration of energy in dry matter at different levels of productivity were presented
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