| Autor: |
Perazzo AF; Federal University of Bahia, Salvador, BA, 40170-110, Brazil. alexandreperazzo@hotmail.com., de Paula Homem Neto S; Southwest State University of Bahia, Itapetinga, Bahia, 45700-000, Brazil., Ribeiro OL; Federal University of Bahia Reconcavo, Cruz das Almas, Bahia, 44380-000, Brazil., Santos EM; Federal University of Paraíba, Areia, Paraíba, 58397-000, Brazil., de Carvalho GG; Federal University of Bahia, Salvador, BA, 40170-110, Brazil., de Oliveira JS; Federal University of Paraíba, Areia, Paraíba, 58397-000, Brazil., Bezerra HF; Federal University of Paraíba, Areia, Paraíba, 58397-000, Brazil., Campos FS; Federal University of Bahia, Salvador, BA, 40170-110, Brazil., de Freitas Junior JE; Federal University of Bahia, Salvador, BA, 40170-110, Brazil. |
| Abstrakt: |
This study aimed to evaluate the effect of diets with ammoniated buffel grass hay on the ingestive behavior of feedlot lambs. Thirty-two sheep of no defined breed with an average body weight of 17.7 ± 1.8 kg were used. A completely randomized design with four treatments (0, 18, 36, and 54 g/kg dry matter (DM) basis) and eight repetitions was used. Ingestive behavior, rumination, and idle time were similar (P > 0.05) among the diets containing ammoniated buffel grass hay, with mean values of 294.5, 554.44, and 594.25 min per day, respectively. Regarding the chews, all of the variables resulted in similar behavior (P > 0.05). The quadratic effect (P < 0.05) observed for daily intake can be explained based on the amount of DM and neutral detergent fiber (NDF) per meal per rumination. There was no effect of urea levels from the ammoniation (P > 0.05) on the efficiency of DM and NDF consumption. However, the rumination efficiency of DM and NDF showed a quadratic effect (P < 0.05). Thus, the use of ammoniated buffel grass hay with urea in lamb diet affects the ingestive behavior by increasing the rumination efficiency, increased intake, and feed utilization. |
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