Configuration of daily grazing and searching of growing beef cattle in grassland: observational study.

Many of the studies in Campos grasslands focus on management aspects such as the control of herbage allowance, and application of nutrients and/or overseeding with legumes. However, there is little literature on how the Campos grassland resource is utilised, especially regarding the grazing pattern and the relationship between pasture quantity and quality on daily grazing activities. The study of the ingestive behaviour in species-rich and heterogeneous native grasslands during daylight hours, and understanding how animals prioritise quality or quantity of intake in relation to pasture attributes, are important to comprehend the ingestive-digestive processes modulating the energy intake of animals and to achieve a better grazing management.

[Postischemic dysfunction and persistent ischemia in the early postinfarction period. Evaluation by echo-dobutamine-atropine test].

Aim: To study post-ischemic dysfunction and persistent ischemia in early post-infarction, by means of Echo-dobutamine-Atropine stress test (ECHO-DOB). Methods. We studied 138 patients (pts) aged < or = 75 yrs (mean 59.

Relationship between HDL-cholesterol and apolipoprotein A1 and the severity of coronary artery disease.

Introduction: We investigated whether apolipoprotein A1 (ApoA1) could better identify patients with severe vessel damage than HDL-cholesterol in a population with recent acute myocardial infarction (AMI).

Methods: One hundred and forty-one male patients (mean age: 54.3 +/- 7.

[Identification of ischemic and/or viable myocardium in early post-infarction period using echocardiographic imaging technique. Comparison of 2 tests: echo-dipyridamole and echo-dobutamine].

Aim Of The Study: To compare two stress tests: Dipyridamole-echocardiography (ECHO-DIP) and Dobutamine-echocardiography (ECHO-DOB) with angiographic data (still "gold standard") in early postinfarction period in order to identify ischemic and/or viable myocardium (considering the echocardiographic follow-up as "gold standard").

Methods: 40 consecutive patients (pts), mean age 56, at their first uncomplicated acute myocardial infarction (AMI) treated with thrombolytic agents were studied. All underwent coronary angiography.