Se analizaron los cambios de la calidad del agua de ríos de Uruguay para identificar co-factores que, además del fósforo, colaboran en el desarrollo de floraciones de algas (blooms). Basado en los resultados se sugieren acciones complementarias de mitigación usando las investigaciones recientes de MGAP e INIA.
El sistema de producción ganadera pastoril, basado en campo natural, es un ecosistema potencialmente muy rico en términos de especies de aves. Este artículo aporta elementos para comprender la relación entre los pastizales y las aves, orientando a la vez sobre condiciones de pastoreo y gestión del campo natural que permiten una relación ganar - ganar entre productividad y conservación.
El sistema de producción ganadera pastoril, basado en campo natural, es un ecosistema potencialmente muy rico en términos de especies de aves. Este artículo aporta elementos para comprender la relación entre los pastizales y las aves, orientando a la vez sobre condiciones de pastoreo y gestión del campo natural que permiten una relación ganar - ganar entre productividad y conservación.
This study aimed to quantify the effect of dairy cattle urine N on soil NH4+, NO3-, pH, as well as on nitrous oxide emissions in a mixed pasture soil. The study was conducted at the dairy unit of INIA - La Estanzuela, Colonia, Uruguay (34°21'04.2"S 57°41'32.4"W). The experiment was arranged as a complete block randomized statistical design (CRBD) with 4 repetitions.
The objective of this study was to determine to what extent the inclusion of medium and high tannin content legumes in NG affects the excretion of N in feces and urine of beef heifers compared to NG without legumes. The experiment was carried out at the Research and Experimental Center Dr. A. Gallinal (CIEDAG-SUL), Uruguay, from 20/10/21 to 22/11/21.
The objective of this work was to determine to what extent the inclusion of legumes with different tannin contents in native grasslands (NG) affect the N2O emissions from beef cattle urine. The experiment was conducted at the Research and Experimentation Center Dr. A. Gallinal, Uruguay.
Toxic cyanobacterial blooms are globally increasing with negative effects on aquatic ecosystems, water use and human health. Blooms? main driving forces are eutrophication, dam construction, urban waste, replacement of natural vegetation with croplands and climate change and variability. The relative effects of each driver have not still been properly addressed, particularly in large river basins. Here, we performed a historical analysis of cyanobacterial abundance in a large and important ecosystem of South America (Uruguay river, ca 1900 km long, 365,000 km2 basin).
Global water resources are under increasing pressure, and some regions face the need to retire irrigation due to groundwater depletion or to meet governmental regulations. In arid and semiarid climates, irrigated lands tend to have more soil organic carbon (SOC) than non-irrigated croplands. However, little is known about how SOC might change following irrigation retirement. Our objective was to quantify changes in SOC and nitrogen stocks after irrigation retirement in semiarid agroecosystems of the High Plains.
In a previous study, we evaluated the degree of virulence of Mycobacterium avium subsp. paratuberculosis (Map) strains isolated from cattle in Argentina in a murine model. This assay allowed us to differentiate between high-virulent MapARG1347 and low-virulent MapARG1543 strains. To corroborate whether the differences in virulence could be attributed to genetic differences between the strains, we performed Whole Genome Sequencing and compared the genomes and gene content between them and determined the differences related to the reference strain MapK10.