ABSTRACT.- Bovine babesiosis and anaplasmosis are primarily transmitted by the biological vector Rhipicephalus microplus. However, Anaplasma marginale may also be mechanically transmitted through the bites of haematophagous flies such as tabanids. While biological transmission by ticks is the predominant route for Babesia species, some reports suggest that mechanical transmission via fomites contaminated with merozoites may occur. Additionally, mechanical vectors such as tabanids may contribute to the spread of the disease.

INTRODUCTION: In livestock, the advancement of genotyping technology has introduced new methods for assessing inbreeding based on single nucleotide polymorphism. Homozygosity runs (ROH) provide a more accurate method for estimating past and recent inbreeding rates at the individual/population level compared to traditional pedigree-based estimations or in the absence of pedigree records. Furthermore, ROH metrics can be used for the identification of regions under strong selection and
provide insights into evolutionary trends over time.

Introduction: Flight distance (FD) is a temperament test associate to lying time of dairy cows in early lactation and under a conventional millking system. Objective: To determine the relationship between FD test of Holstein cows in late lactation and grazing behavior under conventional milking system.

ABSTRACT.- Animal nutrition plays a key role in the productivity and economic impact of animal production systems. Its interactions with genetics, health and animal management are crucial to understanding the complexity of the factors involved and thepotential responses to be obtained. The production of natural fibres is not an exception to this complex phenomenon that occurs in different regions of the world, particularly in those mainly oriented towards wool production. @CABI Digital Library, 2023.

ABSTRACT.- Honey bees (Apis mellifera L.) construct a structured nest with separated areas for the brood, pollen and honey that optimizes the functioning of the colony. However, in the Eucalyptus grandis plantations, bees tend to store a great amount of pollen and nectar in the brood area during the flowering period, reducing the space for the queen's egg laying. Through the python informatic program "CombCount" and an image program, the capped brood area and the proportion of cells occupied by brood, pollen or nectar during the flowering period of E.

ABSTRACT.- The global rise in afforestation highlights the need for improved forestry practices, underscoring the demand for enhanced management strategies and research. Integrated intercropping systems offer sustainable solutions, promoting biodiversity and ecosystem health. This research explored the long-term effects of weed control and row spacing on eucalyptus (Eucalyptus grandis) and pinus (Pinus taeda), intercropped with switchgrass (Panicum virgatum), within a Uruguayan setting.

ABSTRACT.- We reviewed the history, epidemiology, clinical signs, pathology, pathogenesis, treatment, control, and prophylaxis of Sorghum poisoning in livestock. Economic losses in the livestock industry associated with sorghum have been reported since the 19th century. Hyperacute/acute poisoning associated with cyanide (HCN) or nitrate/nitrite frequently occurs in ruminants that consume high quantities of growth and regrowth sorghum after drought, followed by rainfall, respectively.

Los parásitos gastrointestinales (PGI) han sido y continúan siendo una de las principales causas de pérdidas productivas y económicas en los sistemas productores de ovinos a nivel mundial. Debido a la grave situación que ha alcanzado la resistencia a los antihelmínticos, al cambio climático y cambio en los sistemas de producción, se ha vuelto muy difícil el control de H. contortus y de otros PGI. Por ello, el método Famacha© es una herramienta que amerita mayor exploración e implementación a
nivel de majadas comerciales, sobre todo en los planes integrados de control parasitario.

CONTENIDO: Ganadería y Emisiones de Gases de Efecto Invernadero (GEI). -- El metano a partir de la fermentación ruminal. -- Mediciones de Eficiencia y Emisiones de Metano. -- Las pruebas se llevan adelante en la central Kiyu / Hereford. -- Pruebas de Engorde Novillos Hereford (2022/2023). -- Animales eficientes vs ineficientes. --