Tanzania grass structure grazed by goats managed with different residual leaf area index under intermittent stocking

Authors

  • Nailson Lima Santos Lemos Universidade Federal do Ceará
  • Ana Cláudia Ruggieri Universidade Estadual Paulista
  • Victor Costa e Silva Universidade Estadual Paulista
  • Andressa Fernanda Campos Universidade Estadual Paulista
  • Euclides Braga Malheiros Universidade Estadual Paulista
  • Izabelle Auxiliadora Molina de Almeida Teixeira Universidade Estadual Paulista

Abstract

The objective of this study was to evaluate the structure of Tanzania grassland grazed by goats managed with different residue leaf area index (RLAI) under intermittent stocking. The experiment was carried out from February to August, 2008. The treatments consisted of three different targets RLAI (0.8, 1.6 and 2.4) and 95% light interception (LI) criterion determined the rest period. Forage samples were collected at average height sampling points and weighed. Subsequently, a smaller sample was removed to separate the morphological components (leaf, stem and dead material) and to determine the structural and productive features. The canopy architecture was evaluated by the method of inclined point quadrat. The pre-grazing height in the paddocks were significantly different among treatments. RLAI influenced dry matter contents of green forage, leaf, stem and total, with the exception of dry matter of dead material, where the lowest values were observed for 0.8 RLAI. Thus, RLAI modifies canopy structure and is sensitive to canopy height changes throughout the year. Pasture regrowth is not compromised by residual leaf area indexes between 0.8 and 2.4, when climatic factors are not limiting.

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Published

2014-11-11

How to Cite

LEMOS, N.L.S., RUGGIERI, A.C., SILVA, V.C. e, CAMPOS, A.F., MALHEIROS, E.B. and TEIXEIRA, I.A.M. de A., 2014. Tanzania grass structure grazed by goats managed with different residual leaf area index under intermittent stocking . Bioscience Journal [online], vol. 30, no. 6, pp. 1811–1818. [Accessed25 May 2022]. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/19850.

Issue

Section

Agricultural Sciences