The interrelation of the land sizes of the entity and cost of intraeconomic transportations, determination of rational average distances of intraeconomic transportations and the sizes of agricultural enterprises finds reflection in works of many researchers of the end of the nineteenth century and practically economists throughout all twentieth century do not remain unattended. The model offered by us allows to consider all these features by optimization of parameters of the entity, and the criterion of optimization is in number determined as average from the vectors in case of addition. For accounting of transportation costs it is necessary to estimate average distances of transportations. Intraeconomic transportations depend not only on the area, but also on a configuration of the parcel of land. Average distance for the same configuration of the parcel of land in case of identical placement of the economic center in direct ratio to a square root from the area.

Really average distances depend not only on a configuration and the area of the parcel of land, but also on placement of a road net, an arrangement of the economic center. The more land area of economy, the is more cost of intraeconomic transportations both counting on all economy in general, and per unit of the received product.

Those years optimization methods and modeling of economic systems have not been developed yet, and the first computers will appear three decades later and A. V. Chayanov, using graphical creations, algebraic transformations, finds the mathematical solution close to optimum values, offers interesting mathematical formulas for determination of the rational sizes of the agrarian entities taking into account costs for intraeconomic transportations. Modern models of optimization of parameters of the agrarian entities allow to include directly in model intraeconomic transportations as separate restriction.

In the options of a task of optimization of parameters of specialized dairy farms considered above the amount of intraeconomic transportations makes small size. In all cases, the more land area of economy, the is more cost of intraeconomic transportations both counting on all economy in general, and per unit of the received product.

The productivity of animals, the bigger amount of an intraeconomic cargo transportation, with other things being equal, on the entity is higher. Actually it speaks simply - it is required to a highly productive cow more and the best forages. Or in a different way: it is possible to support by the best feeding the high level of productivity of cows. With increase in productivity of cows at each head the big fodder area is required, and the land territory of economy increases, so, also the amount of an intraeconomic cargo transportation on 1 hectare of the farmland increases.

By the analysis it is established that in process of growth of the sizes of dairy farmings on land area amounts of an intraeconomic cargo transportation and costs for them increase. The specific weight of expenses on intraeconomic transportations increases in structure of product cost. In small-scale enterprises specific weight of costs for intraeconomic transportations in total production expenses of economy insignificant also occupies less than a half of percent, in averages - increases up to one percent, and in large already increases to three percent. Increase in a share of expenses on intraeconomic transportations naturally eats a part of profit and interferes with production efficiency growth.

2. Burda A. G. Financial resources of enterprises: handbook / A. G. Burda. - Krasnodar KubSAU, 1997. - 27 p.

3. Burda A. G. Economic-mathematical modeling and study of reproduction operations of farms in the context of the family life cycle and production / A. G. Burda, G. P. Burda. - Economics, sociology and law. - 2014. - № 1 - P. 26-29.