Linear Programming in the economic estimate of livestock-crop integration: application to a Brazilian dairy farm

Revista Brasileira de Zootecnia

Gameiro, Augusto Hauber²  Caixeta Filho, José Vicente³  Rocco, Cleber Damião¹ 

[1]Universidade Federal de São Carlos, São Carlos, Brazil

[2]Universidade de São Paulo, Pirassununga, Brazil

[3]Universidade de São Paulo, Piracicaba, Brazil

关键词: dairy cattle;    economy;    mathematical model;   

DOI  :  10.1590/S1806-92902016000400006

学科分类：兽医学

来源: Universidade Federal de Vicosa

【 摘 要 】

A linear programming mathematical model was applied to a representative dairy farm located in Brazil. The results showed that optimization models are relevant tools to assist in the planning and management of agricultural production, as well as to assist in estimating potential gains from the use of integrated systems. Diversification was a necessary condition for economic viability. A total cost reduction potential of about 30% was revealed when a scenario of lower levels of diversification was contrasted to one of higher levels. Technical complementarities proved to be important sources of economies. The possibility of reusing nitrogen, phosphorus, and potassium present in animal waste could be increased to 167%, while water reuse could be increased up to 150%. In addition to economic gains, integrated systems bring benefits to the environment, especially with reference to the reuse of resources. The cost dilution of fixed production factors can help economies of scope to be achieved. However, this does not seem to have been the main source of these benefits. Still, the percentage of land use could increase up to 30.7% when the lowest and the highest diversification scenarios were compared. The labor coefficient could have a 4.3 percent increase. Diversification also leads to drastic transaction cost reductions.

【 授权许可】

Unknown