The objective of this research was to evaluate swine slurry (SS) application on the agronomic and bromatologic characteristics of marandugrass. The following response variables were determined: DM productivity, tillering, concentrations of DM, CP, NDF, and ADF, and in vitro DM digestibility (IVDMD). It was used a randomized block design with nine treatments (fertilization) and four replications. Treatments were described as follows: T1 (liming); T2 (chemical fertilization – 100, 40 e 60 kg/ha of N P2O5 K2O); T3 (180 m³/ha of […]

Silages of thirteen cultivars of sunflower (Helianthus annuus L.) were evaluated for chemical characteristics and in vitro dry matter digestibility (IVDMD). The silages were produced when the plants presented above 90% of ripe grains. The experimental procedure followed a entirely randomized design and the mean values were compared by SNK test (P<.05). The smallest content of dry matter, 19.8%, was obtained for the hybrid M737, and the highest were observed for Contiflor 7, with 31.2%, and Cargill 11, with 32.2%. […]

The potential of the semi-automated in vitro gas production technique was evaluated by incubation of four hybrids of sorghum (BR700, BR701, BR601 and AG2002). The results of this experiment (in vitro dry matter digestibility, DMD) were compared with the apparent in vivo digestibility. The relationship between the dry matter digestibility obtained by the gas production technique after 96 hours of incubation and the apparent dry matter digestibility in vivo was demonstrated by the equation: in vivo digestibility (g/kg) = 0.46 […]

The goal of this study was to evaluate the intake of nutrients and the total and partial apparent digestibility of sugar cane + citrus pulp (ScSCp), cassava hulls + citrus pulp (ChSCp) and cassava root + citrus pulp (CrSCp) silages. The basal diet with corn silage (CS) and soybean meal composed 60% of the total dry matter of ChSCp and CrSCp treatments. Four castrated crossbred (HxZ) steers were, canulated in the rumen and in the duodenum and confined according to […]

The experiment was conducted with the purpose to evaluate the nutritional value of the plant and silage of different sorghum hybrids: AGX-213, AG-2002, AGX-217 e AG-2005E. The AG-2005E hybrid was the most precocious with 125 days between sowing and harvesting, while the AGX-213 was the latest with 151 days. The plants of the forage hybrids AG-2002 and AGX-213 were taller and showed higher dry matter production than the double purpose hybrids AGX-217 and AG-2005E. The AG-2005E hybrid plant showed higher […]