Data/hora: 09/06/2024 02:12:51

Provedor de dados: | 65
País: | Brazil
Título: | Vegetation composition and forage mass in grassland with a double structure under two winter grazing regimes
Autores: | Coelho,André Alfredo; Trindade,José Pedro Pereira; Volk,Leandro Bochi da Silva; Pinheiro,Clodoaldo Leites; Quadros,Fernando Luiz Ferreira de.
Data: | 2018-01-01
Ano: | 2018
Palavras-chave: | Forage allowance; Grazing; Heifers; Native grassland.
Resumo: | ABSTRACT:  Remnant areas of Pampas grassland have a distinct double structure. Efficiency of livestock farming on these grasslands depends on practices that are synchronized with natural variation. This study examined the changes in vegetation composition and forage mass during winter to understand the effects of grazing methods in a natural pasture with a double structure that was grazed by heifers. An experimental area in the municipality of Bagé, Rio Grande do Sul, was subjected to continuous or rotational grazing treatments, with two replicates each. Frequency of the structural composition and forage mass of the lower stratum and animal weight was measured at the beginning and end of the experimental period (June 7 to October 7, 2016, respectively). Data were analysed with PCA ordination, regression and variance analysis. Both structural composition and forage mass changed during the experimental period. Axonopus affinis and Paspalum notatum were characteristic of continuous grazing, while Mnesithea selloana and Axonopus argentinus characterized rotational grazing (the latter had the highest levels of forage mass). Although, grazing methods changed the composition of forage mass in winter, they did not affect average daily gain of the animals.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000600651
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20170154
Formato: | text/html
Fonte: | Ciência Rural  v.48 n.6 2018
Fonte: | info:eu-repo/semantics/openAccess