Forage yield and quality in elephant grass cv. Pioneiro harvested at different cutting height sand times

Authors

  • Danúbia Nogueira Figueira Universidade Estadual Paulista Júlio de Mesquita Filho
  • Mikael Neumann Universidade Estadual do Centro-Oeste
  • Robson Kyoshi Ueno Universidade Estadual do Centro Oeste do Paraná
  • Sandra Galbeiro Universidade Estadual de Londrina
  • Antônio Vinícius Iank Bueno Universidade Estadual de Maringá

DOI:

https://doi.org/10.5433/1679-0359.2016v37n2p1017

Keywords:

Forage components, Acid detergent fiber, Neutral detergent fiber, Forage yield, Crude protein.

Abstract

This study aimed to evaluate the effect of cutting height and harvest time on forage yield and quality in elephant grass (Pennisetum purpureum Schum.) cv. Pioneiro. Experimental plots were arranged in a randomized block split-plot design. The treatments consisted of four residual heights (30, 40, 50, and 60 cm)and three successive harvest times (January, March, and May 2011). There was a significant interaction between residual height and harvest time for the proportion of stems (P<0.05) and leaves (P<0.01) in the forage. A similar result was observed for fresh (P<0.01) and dry (P<0.01) forage yield at the first and third harvests. There was a quadratic relationship between dry forage yield and residual height, with a maximum yield of5738 kg ha-1ataresidual height of 50.17 cm in the second harvest. The increase in residual height from 30 to 60 cm, regardless of harvest time, reduced neutral detergent fiber (NDF)and acid detergent fiber (ADF) and increased crude protein content. Forage yield and quality were highest at 40-50 cm residual heights. 

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Author Biographies

Danúbia Nogueira Figueira, Universidade Estadual Paulista Júlio de Mesquita Filho

Discente, Curso de doutorado em Zootecnia pela Universidade Estadual “Júlio de Mesquita Filho”, UNESP, Jaboticabal, SP, Brasil. 

Mikael Neumann, Universidade Estadual do Centro-Oeste

Prof. Dr. em Zootecnia, Universidade Estadual do Centro Oeste, UNICENTRO, Guarapuava, PR, Brasil.

Robson Kyoshi Ueno, Universidade Estadual do Centro Oeste do Paraná

Discente do curso de doutorado em Zootecnia pela Universidade Federal do Rio Grande do Sul, UFRGS, Porto Alegre, RS, Brasil.

Sandra Galbeiro, Universidade Estadual de Londrina

Profa Dra em Zootecnia, Universidade Estadual de Londrina, UEL, Lodrina, PR, Brasil.

Antônio Vinícius Iank Bueno, Universidade Estadual de Maringá

Discente, Curso de Doutorado em Zootecnia, Universidade Estadual de Maringá, UEM, Maringá, PR, Brasil. 

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Published

2016-04-26

How to Cite

Figueira, D. N., Neumann, M., Ueno, R. K., Galbeiro, S., & Bueno, A. V. I. (2016). Forage yield and quality in elephant grass cv. Pioneiro harvested at different cutting height sand times. Semina: Ciências Agrárias, 37(2), 1017–1028. https://doi.org/10.5433/1679-0359.2016v37n2p1017

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