Solving the problem of accelerated introduction of innovative approaches and methods in agriculture requires new solutions in the theory and practice of agricultural management . Dimensions of cattle farms are often determined by purely subjective and intuitive way. Public needs objectively sets the framework for economic efficiency depending on the specific conditions make rational as wholesale and average retail or manufacturing. Studying the problems of farm size in dairy farming are important and deal with them at this time may become a factor in overcoming the crisis in farming. Theoretical and practical questions about the size of holdings (rational, optimal, effective, efficient) are a constant focus of research in the context of accelerating the implementation of scientific and technological progress and innovation in the industry. In a market economy, however, these problems should be solved in parallel with other important factors which determine the prosperity of the sector. American author Wolf (2003) emphasizes the great influence of the factor" economies of scale" and establishes a direct correlation between the increase in the size of farms and reduce production costs in large and very large farms. McDonald at all. (2007) investigated the relationship between production costs and the price of raw milk in different sized farms conclude that large farms achieve a much higher net returns than small farms. Study of USDA (2007) for dairy farms in the U.S. shows that over the period 1970-2006, the average herd size has increased from 19 cows per farm in 1970 to 120 cows in 2006 These changes reflect the trend towards greater specialization and larger size of farms.
Rational size of the dairy farm in Bulgaria