RESUMEN.- El desbotonamiento/descorne en los bovinos lecheros es una práctica muy difundida que facilita el manejo, aunque provoca estrés y dolor. Para evaluar preliminarmente qué tan difundida es la aplicación de procedimientos de manejo del dolor (analgesia/anestesia) durante esta maniobra entre veterinarios asesores de tambos de Uruguay y Argentina, se realizó un cuestionario distribuido por correo electrónico a 120 veterinarios. Treinta y seis de los 38 veterinarios (94,7%) que respondieron a la encuesta realizaba este procedimiento en los tambos que asesoraba.

RESUMEN.- El objetivo de este estudio consistió en un relevamiento de las principales enfermedades hereditarias BLAD, DUMPs y Citrulinemia, en una población representativa de terneras Holando de la región este del Uruguay utilizando el panel GGP-BovineLDv3, así como en el análisis de la frecuencia del alelo mutante de BLAD desde que fue reportado por primera vez en Uruguay.

ABSTRACT.- Mastitis frequency could be affected by animal and environmental conditions such as dairy cow genetics and feeding strategies. Thus, the objective of this study was to analyze the probability of clinical mastitis and somatic cell count (SCC) for New Zealand (NZ) and North American (NA) Holstein-Friesian cows maintained on two different feeding strategies (pasture or mixed).

This chapter documents the joint private-public funding of agricultural research in Uruguay, where farmers pay a levy on agricultural production that is matched one for one by the government. A greatly increased involvement of farmers and other stakeholders in research decision making at all levels has been an integral part of this funding partnership. The partnership was accompanied by a major reform of the organization and management of the principal agricultural research organization of Uruguay, which was converted into an autonomous public agency run on private lines.

The aim of this study was to evaluate the inclusion of alfalfa grazing during 8 h continuous or partitioned in 2 separated sessions of 4 h after each milking, on nutrient intake, digestibility, ruminal fermentation, feeding behavior, milk production, milk composition, and milk fatty acid profile, in late-lactation cows fed a partial mixed ration (PMR). Twelve dairy cows (193 ± 83 d in milk, 584 ± 71 kg of body weight) were housed in individual outdoor pens and assigned to treatments according to a 3 × 3 Latin square design replicated 4 times.

The aim of this study was to evaluate the inclusion of alfalfa grazing during 8 h continuous or partitioned in 2 separated sessions of 4 h after each milking, on nutrient intake, digestibility, ruminal fermentation, feeding behavior, milk production, milk composition, and milk fatty acid profile, in late-lactation cows fed a partial mixed ration (PMR). Twelve dairy cows (193 ± 83 d in milk, 584 ± 71 kg of body weight) were housed in individual outdoor pens and assigned to treatments according to a 3 × 3 Latin square design replicated 4 times.

The objective of this scoping review was to identify, describe, and characterize the literature on probiotic supplementation in dairy calves. Eligible studies were nonrandomized, quasi-randomized and randomized controlled trials in English, Spanish, or Portuguese that evaluated the effect of probiotic supplementation on growth and health of dairy calves.

The objective of this scoping review was to identify, describe, and characterize the literature on probiotic supplementation in dairy calves. Eligible studies were nonrandomized, quasi-randomized and randomized controlled trials in English, Spanish, or Portuguese that evaluated the effect of probiotic supplementation on growth and health of dairy calves.

Timely grazing decision-making requires routine information on the herbage mass (HM) and pasture growth rate (GR). The aim of this study was to compare the correspondence, cost, and reliability of two indirect methods -the comparative yield method (COMPYLD) and the pasture-meter (CDAX)- to estimate HM and weekly GR of a 42 ha grazing area. Weekly assessments from Apr 2017 to Oct 2018 were made with both methods to estimate HM and GR of 13 individual paddocks. In addition, estimated GR were compared to aerial net primary productivity (ANPP) estimated using remote sensing (SAT).

Timely grazing decision-making requires routine information on the herbage mass (HM) and pasture growth rate (GR). The aim of this study was to compare the correspondence, cost, and reliability of two indirect methods -the comparative yield method (COMPYLD) and the pasture-meter (CDAX)- to estimate HM and weekly GR of a 42 ha grazing area. Weekly assessments from Apr 2017 to Oct 2018 were made with both methods to estimate HM and GR of 13 individual paddocks. In addition, estimated GR were compared to aerial net primary productivity (ANPP) estimated using remote sensing (SAT).