Degradabilidade e digestibilidade de diferentes dietas para cordeiros confinados utilizando níveis crescentes de óleo de copaíba (copaifera sp.)

Abstract

This study aimed to evaluate the in situ degradability of dry matter and estimate the total digestibility and in vitro dry matter digestibility and in vitro neutral detergent fiber diets containing monensin and copaiba oil in two forms processing (mash and pellet ) in diets for feedlot lambs. For degradability and in vivo digestibility, were used 10 sheep, and in vitro digestibility, ruminal fluid of 3 sheep, Santa Inês, barrows, cannulated in the rumen, with an average age of 8 months and average weight were used 30 kg. The forage: concentrate ratio of 53:47 was used. The treatments were distributed as follows: Control; 25 mg/kgDM-1 of monensin; 0.5g/kgDM-1, 1.0g/kgDM-1 and 1.5g/kgDM-1 inclusion of copaiba. The experimental designs used were two Latin squares, 5x5 and completely randomized. Copaiba oil can be used up to the addition of 1.5 g in the diet, not changing the process of degradation by ruminal microbiota. Copaiba oil for total dry matter digestibility and in vitro digestibility of dry matter and neutral detergent fiber to the inclusion in the diet of 1.5 g under the two forms of processing of feed (mash and pelleted), causing no change in the growth and action of rumen bacterial flora.