Agronomic characteristics and viability of tifton-85 (Cynodon spp) irrigated in the milk production system

  • Geraldo Balieiro Neto Agência Paulista de Tecnologia dos Agronegócios, Polo Regional de Desenvolvimento Tecnológico dos Agronegócios do Centro Leste, Ribeirão Preto, SP
  • José Joaquim Ferreira Empresa de Pesquisa Agropecuária de Minas Gerais, Centro Tecnológico do Centro Oeste, Fazenda Santa Rita, Prudente de Morais, MG
  • Marcos Brandão Dias Ferreira Empresa de Pesquisa Agropecuária de Minas Gerais, Centro do Alto do Triângulo e Alto Paranaíba, Fazenda Experimental Getúlio Vargas
  • Francisco Morel Freire Empresa de Pesquisa Agropecuária de Minas Gerais, Centro Tecnológico do Centro Oeste, Fazenda Santa Rita, Prudente de Morais, MG
  • Maria Celuta Machado Viana Empresa de Pesquisa Agropecuária de Minas Gerais, Centro Tecnológico do Centro Oeste, Fazenda Santa Rita, Prudente de Morais, MG
  • Morethson Resende Embrapa, Centro Nacional de Pesquisa de Milho e Sorgo, Sete Lagoas, MG
Keywords: Forage analysis, Irrigation, Half-blood, Viability, Yield

Abstract

The experiment was carried out to evaluate the irrigation viability of a Tifton-85 pasture and the sward productivity. Two areas of 3.54 ha (with or without irrigation) were divided in eight paddocks of 4.430 m² and a grazing method of rotational stocking was used. During the summer these areas were fertilized with 200 kg of N/ha. The pasture irrigation system increased the green leaves production, 2,249 vs 1,443 kg of DM/ha, the leaf:stem ratio, 0.37 vs 0.26, the CP content in the whole plant and leaf, 8.49 vs 6.67 and 14.78 vs 12.94, respectively and reduced the percentage of ADF in the whole plant, 44.87 vs 46.15. The milk production in kg/animal/day (9.92 and 10.05) and in kg/ha (1,195 and 1,215) did not differ in the systems with and without irrigation. In both treatments milk production in kg/ha increased from April to July in comparison with the period from December to March (with irrigation, 1,302 vs 1,088 and without irrigation, 1,403 vs 1,028). The reduction of expenses with the corn silage (8.82 t) and sugarcane (3 t) was not enough to compensate the expenditure with energy.

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Published
2007-08-01
How to Cite
Balieiro Neto, G., Ferreira, J., Ferreira, M., Freire, F., Viana, M., & Resende, M. (2007). Agronomic characteristics and viability of tifton-85 (Cynodon spp) irrigated in the milk production system. Brazilian Journal of Veterinary Research and Animal Science, 44(4), 235-242. https://doi.org/10.11606/issn.1678-4456.bjvras.2007.26623
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