Protein Supplementation Is Vital for Beef Cattle Fed with Tropical Pasture

Abstract

The production of beef on pasture is one of the potentials of Brazilian agriculture, mainly due to the territorial extension and climatic conditions. Therefore, the production of beef on tropical pastures mainly consists of the use of tropical forages; when correctly handled, forage plants show good productivity and improvement in the nutritive value. Among main factors that affect the performance of beef cattle fed on pastures, the availability and quality of the pasture stand first. In tropical regions, during the dry period of the year, the production of forage as well as its nutritive value is diminished. Hence, it is necessary to use protein supplements as a feed strategy to promote increased intake and improved nutrient utilization efficiency by animals. In view of this, by-products of biodiesel from oilseeds, such as peanuts, cottonseed and sunflower seeds, with high nutritional values can be used as an animal feed alternative to the protein sources commonly used for the formulation of supplements. Protein supplementation contributes to an increase in live weight gain as well as improvement in ruminal microbiota activity and, consequently, potentiates nutrient utilization efficiency in beef cattle fed with tropical pasture.

Potencial nutricional dos coprodutos das sementes oleaginosas do setor de bioenergia na substituição do farelo de soja e do milho para a segurança alimentar e sustentabilidade da produção de pequenos ruminantes

“…nutritivas a humanos em proteína de alta qualidade, indispensável para o desenvolvimento humano (WILKINSON; LEE, 2018).Devido as suas dimensões continentais, a produção de ruminantes no Brasil é desenvolvida sob o sistema de criação extensivo, constituído em sua maioria por forragens tropicais de ciclo fotossintético C4(BEZERRA et al, 2018). Dentro deste sistema as forragens atuam como a principal fonte de nutrientes para o desenvolvimento e manutenção dos animais (WILKINSON; LEE, 2018).…”