| This study aimed to compare conventional livestock production systems in relation to other forms that implement ecological production, evaluating environmental variables (in water: nitrite, nitrate, phosphate, pH and availability of oxygen using photometrics methods and Winkler modified method. In soils: counts of bacteria and fungi using MPN method, and physicochemical properties. In meadows: Prairie composition, quantity and density of arthropods), productive variables (in forages: biomass estimation using the methodology by Campbell and Arnold, nutritional quality using bromatology methods, in animals: milk production, weight gain, and carrying capacity), and economic variables (Fertilization cost and control ecto-endo parasites cost) in 6 farms... |
