Desempenho e metabolismo ruminal em bovinos de corte em sistema de pastejo no periodo seco do ano recebendo virginiamicina na dieta
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Data
2015
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Editor
Universidade Estadual de Londrina
Resumo
This study aimed to evaluate the effects of including virginiamycin (VM) in two levels, the proteinenergy
supplement for growing beef cattle diet with the tropical grass base in the dry season. Three
treatments were evaluated: control treatment, only Mineral Supplement ME - Production - F.10 proteinenergy
(SPE); 100 virginiamycin treatment (VM 100) + SPE 108 mg (Phigrow®) VM / animal / day and treatment virginiamycin 200 (200 MV) + SPE 216 mg (Phigrow®) VM / animal / day. The variables
analyzed were the supplement intake (SI), average daily gain (ADG), biometric measurements and
body condition score (BCS) in experiment 1 and the average daily supplement intake (ADSI), ruminal
pH, ammonia nitrogen, in situ ruminal degradability of dry matter (DM), acid detergent fiber (ADF)
and neutral detergent fiber (NDF) in experiment 2. There was no statistical difference for ADG, SI and
biometric measurements (P>0.05), ADG for VM 200 of 0,431; VM 100 of 0.391 and control 0.398 kg/
animal/day. There was no significant difference (P>0.05) for ruminal pH, the ammonia concentration
and the variables at the in situ degradability of DM, NDF and ADF. The virginiamycin conveyed in
SPE for beef cattle grazing can promote changes in consumption did not cause significant effects on the values of ruminal pH and ammonia nitrogen and do not show significant effects on the degradability of DM, NDF and ADF.
Descrição
Palavras-chave
Aditivos zootécnicos, Degradação da fibra, Suplementação proteico-energética, Zootechnical additives, Fiber degradation, Protein-energy supplementation
Citação
FERREIRA, Sérgio Fernandes; FERNANDES, Juliano José de Resende; PÁDUA, João Teodoro; BILEGO, Ubirajara Oliveira; LIMA, Marcos Antônio Sales; FRANÇA, Aldi Fernandes de Souza; BENTO, Elis Aparecido; OLIVEIRA, Leonardo Guimarães; GRANDINI, Danilo. Desempenho e metabolismo ruminal em bovinos de corte em sistema de pastejo no período seco do ano recebendo virginiamicina na dieta. Semina: ciências agrárias, Londrina, v. 36, n. 3, supl. 1, p. 2067-2079, 2015.