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Provedor de dados:  Ciência Rural
País:  Brazil
Título:  Grazing height targets for Alexandergrass pastures under continuous stocking in integrated crop-livestock system
Autores:  Soares,André Brugnara
Assmann,Tangriani Simioni
Assmann,Alceu Luís
Data:  2020-01-01
Ano:  2020
Palavras-chave:  Crop rotation
Grazing intensity
Urochloa plantaginea.
Resumo:  ABSTRACT: The aim of this experiment was to identify grazing height targets for Alexandergrass pastures under continuous stocking in integrated crop-livestock system (ICLS). For this purpose, twelve pastures were cultivated into an ICLS area, and maintained at 10, 20, 30, or 40 cm using grazing goats. The following variables were analyzed: leaf and herbage mass, accumulation rate, and allowance; leaf:stem ratio; chemical composition of hand-plucked samples; stocking rate; average daily gain and gain per area. The data were submitted to regression and correlation analysis. Significance was set at 5% (P≤0.05). The main results were: i) herbage and leaf lamina mass increased linearly with grazing height, and pastures maintained at 20 cm already presented the minimum amount recommended for soil cover in ICLS; ii) animal performance achieved an upper asymptotic plateau in pastures maintained around 30-40 cm and it was highly correlated with both grazing height and forage availability (mass and allowance). Alexandergrass pastures under continuous stocking in ICLS should be maintained between 30-40 cm to improve both cover crop biomass and animal performance.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  Universidade Federal de Santa Maria
Relação:  10.1590/0103-8478cr20180837
Formato:  text/html
Fonte:  Ciência Rural v.50 n.1 2020
Direitos:  info:eu-repo/semantics/openAccess

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