Pablo Chilibroste

1. Introduction.The intensification of grazing dairy systems has led to an increase on the use of supplements and more recently on the use of total mixed rations (TMR) (Wales et al., 2013), particularly when imbalances between herbage production and herd requirements occur during the course of a year (Chilibroste et al., 2007; Wales et al., 2013). Increased levels of TMR fed to grazing dairy cows ...

IntroductionOver millennia, grazing ruminants have, for the most part, evolved on the great grasslands of the world, ranging from the savanna and tropical grasslands of the equatorial regions to the temperate grasslands at slightly higher latitudes. Less extensive are the high-altitude alpine pasture and marginal tundra biomes, in which many unique distinctive breeds and species of livestock have ...