Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/45535
Title: Suplemento múltiplo com ionóforos para novilhos em pasto: consumo, fermentação ruminal e degradabilidade in situ
Other Titles: Multiple supplement with ionophores for grazing steers: intake, ruminal fermentation, and in situ degradability
Keywords: Ruminante
Lasalocida
Monensina
Suplementação
Ruminant
Lasalocid
Monensin
Suplementation
Issue Date: Feb-2011
Publisher: Universidade Federal de Minas Gerais
Citation: MOURTHE, M. H. F. et al. Suplemento múltiplo com ionóforos para novilhos em pasto: consumo, fermentação ruminal e degradabilidade in situ. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte, v. 63, n. 1, p. 129-135, 2011. DOI: https://doi.org/10.1590/S0102-09352011000100020.
Abstract: The effect of multiple supplement with ionophores was evaluated on intake, ruminal fermentation, and in situ degradability of dry matter (DM) of the pasture forage. Five rumen fistulated Holstein x Zebu steers averaging 350kg of BW were used. The animals were grouped in five different paddocks under Latin Square experimental design. The treatments were multiple supplement without ionophores (CONT); multiple supplement with 100mg of monensin/animal/day (M100); multiple supplement with 200mg of monensin/animal/day (M200); multiple supplement with 100mg of lasalocid/animal/day (L100); multiple supplement with 200mg of lasalocid/animal/day (L200). The pasture intake was 7.24kg DM/day and it was not affected by ionophores. The average pH was influenced (P<0.05) by the presence of the ionophores in the supplements. There rumen N-NH3 concentration was negatively influenced by the ionophores levels in the multiple supplement. The molar concentrations of acetate, propionate, and butirate in the rumen were not affect by the presence, type, or level of ionophores. The mean soluble fraction A of Brachiaria decumbens was 22%, the mean potential degradable insoluble fraction (B) was 65%, and the degradability was 87%. The mean degradation rate (c) was 0.03/h. The ionophores did not affect DM in situ degradability.
URI: http://repositorio.ufla.br/jspui/handle/1/45535
Appears in Collections:DZO - Artigos publicados em periódicos



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