ABSTRACT.- Eucalyptus globulus is one of the most planted forest species in Uruguay. However, its high susceptibility to diseases has determined that in recent years most plantations reaching harvest are replaced by other species, mainly E. dunnii and E. smithii. The decision whether to maintain the plantation for an additional rotation as coppice crop or to carry out a replanting depends on the expected economic results of both alternatives. Therefore, the objective of this research was to estimate the profitability of a coppice crop of E.

The plantation and natural forests of South America have been highly impacted by native and exotic pests in recent decades. The interaction of emerging invasive pests, climate change, and timber markets will define the region?s forests, with significant but uncertain ecological changes and economic losses expected.

The plantation and natural forests of South America have been highly impacted by native and exotic pests in recent decades. The interaction of emerging invasive pests, climate change, and timber markets will define the region?s forests, with significant but uncertain ecological changes and economic losses expected.

El término "tecnologías de la información y comunicación (tic)" se refiere a todas las tecnologías de la comunicación, incluyendo Internet, redes inalámbricas, teléfonos celulares, computadoras, software, videoconferencias, redes sociales, y otras aplicaciones y servicios de medios que permiten a los usuarios acceder, recuperar, almacenar, transmitir y manipular información en forma digital. También alude a la convergencia de la tecnología de los medios como audiovisual y redes telefónicas con redes de computadoras. ---- 1. Introducción. -- 1.1. A nivel global. -- 1.2. A nivel nacional.

El carbono orgánico del suelo representa un pilar fundamental para el desarrollo de la agricultura sostenible a nivel local, siendo el principal indicador de la calidad del suelo y de su potencial productivo. Adicionalmente, los suelos contienen la mayor reserva terrestre de carbono (C) a nivel global; por lo tanto, su secuestro tiene el potencial de reducir los gases de efecto invernadero y contribuir a la lucha contra el cambio climático. ---- 1. Importancia del carbono orgánico del suelo a nivel local y global. -- 1.1.

Se describe un brote de intoxicación espontánea por larvas del himenóptero Perreyia flavipes en un rodeo de bovinos Hereford en Flores, Uruguay. De un total de 187 bovinos expuestos de diferentes categorías enfermaron 43 y murieron 42, determinado tasas de morbilidad, mortalidad y letalidad de 22,9%, 22,5% y 97,7%, respectivamente. El curso clínico fue agudo, los signos incluyeron depresión, agresividad y babeo. El principal hallazgo patológico observado fue necrosis hepatocelular y hemorragia centrolobulillar aguda severa difusa.

An outbreak of poisoning by Lantana camara occurred in cattle when a herd sought refuge in a Eucalyptus forest heavily infested by this plant. The animals showed apathy, elevated serum activities of hepatic enzymes, severe photosensitivity, jaundice, hepatomegaly and nephrosis. After a clinical manifestation period of 2-15 days, 74 out of 170 heifers died. The main histological changes were random hepatocellular necrosis, cholestasis, biliary proliferation and, in one animal, centrilobular necrosis. Immunostaining for Caspase 3 detected scattered apoptotic hepatocytes.

This study reports genetic parameters for yearling and adult wool and growth traits, and ewe reproductive performance. Data were sourced from an Uruguayan Merino flock involved in a long-term selection program focused on reduced fiber diameter (FD), and increased clean fleece weight (CFW) and live weight (LW). Pedigree and performance data from approximately 5,700 mixed-sex yearling lambs and 2,000 mixed-age ewes born between 1999 and 2019 were analyzed.