Theme 19: Use of Supplements
Description
The supplementation effect was evaluated using crossbred rumen-fistulated steers maintained in a Brachiaria brizantha cv. marandu pasture. The animals received energy supplementation (corn-COR); low degradability protein supplementation (corn gluten-GLU); and high degradability protein supplementation (soybean-SBM) at two levels N1 (± 0.5 kg/an/day) and N2 (± 1.5 kg/an/day); or no supplementation (Control). The factorial (3x2), plus the control, was studied according to complete randomized block design with three replications. The supplementation did not affect (P> 0.05) the potential degradability (POD), the effective degradability (EFD), and the degradation rates (DR) of the forage (extrusa). The GLU supplementation provided higher (P< 0.05) EFD of the NIDN fraction than the SBM, and both did not differ (P> 0.05) of the COR treatment. The data allowed to conclude that the supplementation used did not provide alterations in the forage degradability, probably due to the low N-NH3 level and the non-variation of the ruminal pH.
Citation
Pereira, J. R. A.; Reis, Ricardo A.; Rodrigues, L. R. de A.; and Freitas, D., "Effectt of Supplements on Forage Degradability of Brachiaria brizantha cv. Marandu Grazed by Steers" (2021). IGC Proceedings (1993-2023). 5.
https://uknowledge.uky.edu/igc/19/19/5
Included in
Effectt of Supplements on Forage Degradability of Brachiaria brizantha cv. Marandu Grazed by Steers
The supplementation effect was evaluated using crossbred rumen-fistulated steers maintained in a Brachiaria brizantha cv. marandu pasture. The animals received energy supplementation (corn-COR); low degradability protein supplementation (corn gluten-GLU); and high degradability protein supplementation (soybean-SBM) at two levels N1 (± 0.5 kg/an/day) and N2 (± 1.5 kg/an/day); or no supplementation (Control). The factorial (3x2), plus the control, was studied according to complete randomized block design with three replications. The supplementation did not affect (P> 0.05) the potential degradability (POD), the effective degradability (EFD), and the degradation rates (DR) of the forage (extrusa). The GLU supplementation provided higher (P< 0.05) EFD of the NIDN fraction than the SBM, and both did not differ (P> 0.05) of the COR treatment. The data allowed to conclude that the supplementation used did not provide alterations in the forage degradability, probably due to the low N-NH3 level and the non-variation of the ruminal pH.
