Sustainable intensification of dairy production is a strategy to consolidate a competitive sector. However, technologies adoption is limited due to the difficulty to accessing to research results. The objective of this document was to review a compilation of research works carried out mainly by the Colombian Agricultural Research Corporation (Agrosavia) in specialized dairy feeding systems of Colombian high tropics. In soils issue, research has been carried out on soil recovery and grassland renewal. Recently, the growth of grasses has been evaluated under different environmental conditions to generate efficient forage management schemes. In 2018 was registered Altoandina oat to forage use, but, in Colombian high tropic, there is a limited offer to forages due to absence of breeding program and evaluation of germplasm. Integrated management of Collaria scenica has been developed. Characterization and use of tree and shrub species have been carried out to silvopastoral systems (SSPs). In feeding systems, Agrosavia has been working on determining chemical and nutritional compositional of feed resources and design of supplementation schemes to improve animal response. Methane production increases when mature forage species are used, contrary a balanced diet or grazing in SSPs reduces methane emissions. Finally, research developments must incorporate and recognize the production costs of the system to ensure the adoption of technologies.

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Wastewater treatment generated sludge can be stabilized and dehydrated to be disposed of to the soil. The main restrictions to such disposition are related to sludge heavy metals and pathogen microorganisms contents. Although regulated standard permissible concentrations for agricultural use exist, it is necessary to find alternatives allowing pathogen behavior assessment under different environmental conditions in countries where better quality is not possible to achieve. This survey assessed the behavior of pathogen microorganisms present in a stabilized biosolid applied to the pasture cultivation soils at dairy cattle breeding farms. Results show a rapid decrease on the concentration of the assessed indicators in a 45 days period, reducing the risk caused by this type of practice.

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