دورية أكاديمية
Vegetation composition and forage mass in grassland with a double structure under two winter grazing regimes
| العنوان: | Vegetation composition and forage mass in grassland with a double structure under two winter grazing regimes |
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| المؤلفون: | André Alfredo Coelho, José Pedro Pereira Trindade, Leandro Bochi da Silva Volk, Clodoaldo Leites Pinheiro, Fernando Luiz Ferreira de Quadros |
| المصدر: | Ciência Rural, Vol 48, Iss 6 (2018) |
| بيانات النشر: | Universidade Federal de Santa Maria, 2018. |
| سنة النشر: | 2018 |
| المجموعة: | LCC:Agriculture LCC:Agriculture (General) |
| مصطلحات موضوعية: | campo nativo, oferta de forragem, método de pastejo, recria de novilhas, Agriculture, Agriculture (General), S1-972 |
| الوصف: | 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. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English Portuguese |
| تدمد: | 1678-4596 0103-8478 |
| Relation: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000600651&lng=en&tlng=en; https://doaj.org/toc/1678-4596 |
| DOI: | 10.1590/0103-8478cr20170154 |
| URL الوصول: | https://doaj.org/article/e30cc2a9b35b40deae349a59b195d6b1 |
| رقم الأكسشن: | edsdoj.30cc2a9b35b40deae349a59b195d6b1 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 16784596 01038478 |
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| DOI: | 10.1590/0103-8478cr20170154 |