Effect of sources of phosphorus on “in vitro” digestibility of dry matter, organic matter and total digestible nutrients of Mombaça grass (Panicum maximum Jacq. Cv. Mombaça)

Authors

  • Fábio Jacobs Dias Universidade Estadual de Maringá
  • Clóves Cabreira Jobim Universidade Estadual de Maringá
  • Antonio Ferriani Branco Universidade Estadual de Maringá
  • Carlos Antonio Lopes de Oliveira Universidade Estadual de Maringá

DOI:

https://doi.org/10.5433/1679-0359.2008v29n1p211

Keywords:

Fertilizers, Forage, Grazing, Pasture.

Abstract

The trial was performed to evaluate the effect of phosphorus sources on forage mass quality of Mombaça grass (Panicum maximum Jacq. cv. Mombaça), according to in vitro dry matter and organic matter digestibility and TDN concentration. Every month, samples of available forage mass were taken, from December, 2002 until April, 2003. The treatments were three phosphate sources (1-YoorinÆÊ magnesium thermophosphate; 2-GafsaÆÊ natural phosphate; 3-simple superphosphate + triple superphosphate) and the control (no fertilizer). They were arranged in a randomised block design with three replications. It was used 12 plots sized from 0,7 to 1,0 hectare, which were delimited by two-line eletric fence. The grazing method was continuous stocking and variable stocking rate (“put-and-take”). The IVDMD, IVOMD and TDN coefficients decreased along sampling period. IVDMD, IVOMD and TDN concentration didn’t show significantly differences among treatments (P>0.05).

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Author Biographies

Fábio Jacobs Dias, Universidade Estadual de Maringá

Professor do Departamento de Zootecnia da UEM - Maringá, PR.

Clóves Cabreira Jobim, Universidade Estadual de Maringá

Professor do Departamento de Zootecnia da UEM - Maringá, PR.

Antonio Ferriani Branco, Universidade Estadual de Maringá

Aluno de Doutorado em Zootecnia - PPZ UEM - Maringá, PR.

Carlos Antonio Lopes de Oliveira, Universidade Estadual de Maringá

Aluno de Doutorado em Zootecnia - PPZ UEM - Maringá, PR.

Published

2008-08-30

How to Cite

Dias, F. J., Jobim, C. C., Branco, A. F., & Oliveira, C. A. L. de. (2008). Effect of sources of phosphorus on “in vitro” digestibility of dry matter, organic matter and total digestible nutrients of Mombaça grass (Panicum maximum Jacq. Cv. Mombaça). Semina: Ciências Agrárias, 29(1), 211–220. https://doi.org/10.5433/1679-0359.2008v29n1p211

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