Effect of blend Enterococcus faecium plus Saccharomyces cerevisiae in different doses on intake and digestibility of steers in feedlot

Tuesday, July 22, 2014
Exhibit Hall AB (Kansas City Convention Center)
Andre A Oliveira , Unesp, Jaboticabal, Brazil
Jefferson Koscheck , Unesp, Jaboticabal, Brazil
Andre Luis da Silva Valente , Unesp, Jaboticabal, Brazil
Fernanda Basso , Unesp, Jaboticabal, Brazil
Carlos Rabelo , Unesp, Jaboticabal, Brazil
Uly Carneiro , Unesp, Jaboticabal, Brazil
Ricardo Andrade Reis , Unesp, Jaboticabal, Brazil
Abstract Text: The goal of this study was to evaluate the effect of different probiotic doses on the intake and partial digestibility of dry matter. Were evaluated six Nellore steers fitted with ruminal cannulas and allocated to a double 3 x 3 Latin square design with three treatments and tree periods on two simultaneous repetitions. The blend of Enterococcus faecium (5 x 109 ufc/g of product) and Saccharomyces cerevisiae (5 x 109 ufc/g of product) in different doses (0, 1 or 2 g/day) were provided on the rumen. Steers were fed a diet containing 200 g/kg of corn silage and 800 g/kg concentrate. Within each experimental period, 18 days were to adaptation, DMI and digestibility were recorded from d 19 to 21. The statistical analyzes were conducted using PROC MIXED from SAS and means were compared using Tukey test (P<0.05). Different doses of probiotic did not affect (P> 0.05) DMI, whereas the digestibility of OM (746.4, 697.9, 689.2 g/kg), and carbohydrates (757.4, 715.8, 706.6 g/kg) showed a quadratic response to 0, 1 and 2 g/day, respectively.

Keywords: Concentrate, Digestibility, Probiotic