EN
The economic analysis of the efficience breeding of coypus was made in 1980-1989 years. For the purpose of this analysis was definition economical efficiency in coypus farm in various conditions of the market. In this investigation was engaged in: direct farm costs and their structure; unit costs of coypus breeding; profitable of coypus breeding. In this experiment was estimated two groups of animals: sapphire and standard, wich was feed in conventional kind and in use pellets. In this two groups was 240 animals /120 sapphire coypus and 120 standard coypus/. After 26 weeks was gained following results: increase of production costs in this period about 9,5 times, and gross incomes about 11,5 times; in the structure of direct costs the most importand expenses are: fodder costs, amortization charges and repairs, young stock breeding costs and labour costs. A residual direct costs have the insignificant influence in the Joint costs level; in this investigation result that using the pelletsfood gave rational advantages as derciese of fodder and labour costs.