INITIAL HEIGHT AND DEFERMENT PERIOD ON SIGNALGRASS PASTURES

Authors

  • Francisco de Souza Gouveia Universidade Federal de Viçosa
  • Dilermando Miranda da Fonseca Universidade Federal de Viçosa
  • Manoel Eduardo Rozalino Santos Universidade Federal de Uberlândia
  • Virgilio Mesquita Gomes Universidade Estadual de Montes Claros
  • Angélica Nunes de Carvalho Universidade Federal de Uberlândia

DOI:

https://doi.org/10.1590/cab18043744

Keywords:

Forage mass

Abstract

This study aimed to evaluate the initial heights (10, 20, and 30 cm) and deferment periods (171, 141, and 109 days in 2010; and 131, 100, and 71 days in 2011) of Urochloa decumbens cv. Basilisk (signal grass). The factors were arranged in split plot, in a randomized complete block design with three replications. Pastures deferred for a short period had lower masses of forage (5,977 and 6,904 kg/ha of DM in 2010 and 2011, respectively). In 2010, pastures deferred for a short period had lower mass of live stem (942 kg/ha of DM), dead leaf blade (785 kg/ha of DM), and dead stem (1282 kg/ha of DM), higher number of vegetative tillers (797 tillers/m²), fewer reproductive tillers (2 tillers/m²), less falling index (1.4), higher mass of live leaf blade (655 kg/ha of DM). The higher pastures had fewer vegetative tillers (495 and 431 tillers/m² in 2010 and 2011, respectively), larger masses of forage (5,285 and 5,942 kg/ha of DM in 2010 and 2011, respectively), dead leaf blade (968 kg kg/ha of DM in 2010) and dead stem (1,902 kg/ha of DM in 2010). Based on the results obtained in the two years, for use in July, the signal grass can be deferred for 71-109 days with an initial height of 20 to 30 cm. The initial height of 10 cm is recommended when a deferral period above 130 days is adopted.
Keywords: Brachiaria decumbens; forage mass; sward height; tiller.

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Author Biographies

Francisco de Souza Gouveia, Universidade Federal de Viçosa

Mestre em Zootecnia pela Universidade Federal de Viçosa

Dilermando Miranda da Fonseca, Universidade Federal de Viçosa

Professor do Departamento de Zootecnia da Universidade Federal de Viçosa

Manoel Eduardo Rozalino Santos, Universidade Federal de Uberlândia

Professor da Faculdade de Medicina Veterinária e Zootecnia da Universidade Federal de Uberlândia

Virgilio Mesquita Gomes, Universidade Estadual de Montes Claros

Professor da Universidade Estadual de Montes Claros

Angélica Nunes de Carvalho, Universidade Federal de Uberlândia

Mestranda do Programa de Pós Graduação em Ciências Veterinárias da Universidade Federal de Uberlândia.

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Published

2017-09-27

How to Cite

GOUVEIA, F. de S.; FONSECA, D. M. da; SANTOS, M. E. R.; GOMES, V. M.; CARVALHO, A. N. de. INITIAL HEIGHT AND DEFERMENT PERIOD ON SIGNALGRASS PASTURES. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 18, 2017. DOI: 10.1590/cab18043744. Disponível em: https://revistas.ufg.br/vet/article/view/e-43744. Acesso em: 13 may. 2024.

Issue

Vol. 18 (2017): Continuous publication

Section

ZOOTECNIA

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