Composição química e digestibilidade do pasto e da forragem selecionada por caprinos na caatinga

Abstract

The Caatinga is the dominant vegetation in the semiarid region of northeastern Brazil, where sheep and goats are raised almost always having extensively as a food source that originated the forage vegetation, which in most cases is able to overgrazing as a result of inadequate management, practice identified as a major factor in degradation of the Caatinga. The savanna vegetation covering an area of approximately 10% of the country, becoming the most important source of food for the animals in this region. Depending on the season comes to compose up to 90% in the diet of goats and sheep. Therefore aimed to evaluate the biome Caatinga about data on the chemical composition of forage species pastejáveis by goats grazing in semi-arid Pernambuco. During this review will discuss some aspects such as availability, management, sward botanical composition, chemical composition and nutritive value of ruminant diets in relation to the savanna biome.