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Secondary Fitometabolitos that affect the nutritional value of Lotus corniculatus as forage for ruminant animals
In the highlands of Bogota at 2600 masl, temperature 14°C and 1013 mm of precipitation, three plots have been furbished by modifying the physico- chemical conditions of the soil and planted the species Lotus corniculatus to evaluate content of condensed tannins, hydrolysable tannins, phenols, tannins that precipitate protein, saponins and alkaloids. The purpose was to determine the effect of soil conditions on the concentration of secondary phytobiomolecules. Analytical and instrumental techniques of AOAC were applied to determine the presence of secondary phytometabolites and the obtained results were put through a simple variance analysis. Additionally a multiple correlation analysis was done, using the Pearson’s coefficient. It was found that the production of condensed tannins, tannins and hydrolysable tannins that precipitate protein in L. corniculatus, varies, with highly different significant statistics according to the soil type. The content of total phenols, in the wrapping did not show significative differences among treatments (P>0.05). The ammoniacal nitrogen of the soil correlated negatively and significantly with the concentration of hydrolysable tannins and with the tannins that precipitate protein. It was found negative correlation between the effective cationic exchange capacity of soils and production of condensed tannins and total phenols in the studied plant. A correlation between the change in pH in the soil and the content of condensed tannins and and hihgly significant with the tannins that precipitate protein was identified. It is concluded that the variation of the physico-chemical conditions of the soil affect the production of secondary metabolites in L. corniculatus.
When RIAA receives the postulation of an original by its author, either through email or post mail, considers that it can be published in physical and/or electronic format and facilitates its inclusion in databases, newspaper archives and other systems and indexing process. RIAA authorizes the reproduction and citation of the Journal’s material, provided that explicitly indicates journal name, the authors, the article title, volume, number and pages. The ideas and concepts expressed in the articles are responsibility of the authors and in no case reflect the institutional policies of the UNAD.
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