Revista Brasileira de Engenharia Agrícola e Ambiental
versión On-line ISSN 1807-1929
SOUTO, Adriano R. y RALISCH, Ricardo. Swine environmental quality index (SEQI): Conceptual and methodological aspects and case studies. Rev. bras. eng. agríc. ambient. [online]. 2007, vol.11, n.4, pp. 441-448. ISSN 1807-1929. http://dx.doi.org/10.1590/S1415-43662007000400015.
SEQI is a tool that evaluates the conditions in swine production systems in relation to environment, by using indicators with weights for identification, examination and evaluation of the characteristics of location, infrastructure and farm management procedures. The production systems evaluated in this study are located in the Toledo River basin, Paraná state, Brazil. The collection of data through technical visits met the set of SEQI indicators. With the information, simulations were performed and the units were classified in three groups: regular, irregular and critical. For small farms, the ones that reformed their water nipples, storage tanks, feeding devices and pipe installations, were classified as regular, as well as the ones that have their own equipments for applying manure, a worker responsible for the activities and available area, representing 16.13%. In the critical level, 32.26% of the farms are located near water resources and housings, with manure in the ground and low storage capacity, with application rates above 60 m3 ha-1, besides presenting residues in the area. The other units (51.61%) were classified as irregular, which implies a risk of water pollution.
Palabras llave : environmental indicators; swine production; water pollution.