Produção de gases “in vitro” de dietas com blend de óleos essenciais para ruminantes

Abstract

The propouse of this present study was to differentiate the production of gases from diets supplemented with essential oil blend of cashew nut shell and castor oil (Essential® - Oligo Basics) for ruminants through the production of in vitro gases. Gas production (PG) analyzes were performed at the Animal Nutrition Laboratory of the Center for Nuclear Energy in Agriculture, University of São Paulo (LANA / CENA / USP) in Piracicaba-SP. The analyzes were performed with pure essential oil (OP) substrates, Conventional Anionic Prepartum Diet (DPC), Blend Essential Oil Prepartum Diet (DPO), Monensine Postpartum Diet (DM), Feed without additive ( RSAD) and additive feed (RCAD). Being introduced into glass containers (160 mL) in the presence of buffer solution and rumen inoculum from fistulated sheep. The pressures were measured (PDL800) and the gases were estimated through the equation proposed by Godoy (2007). Overall, the present study provides safety in the addition of essential oil from the cashew nut and castor bean shells for ruminants. However, there is a possibility and need for further research with the addition of essential oil to the ruminant diet.