Abstract
The objective was to evaluate the characteristics of the pasture and the behavior of grazing goats under continuous stocking in a silvopastoral system (SPS) of Andropogon grass (Andropogon gayanus Kunth cv. Planaltina) in comparison to its monoculture (MC). The treatments consisted of two cropping systems: monoculture of Andropogon grass and silvopastoral system—SPS of native trees mixed with Andropogon grass, evaluated in five grazing periods using goats (February, March, April, May and June). Pasture height, leaf/stem ratio and the dry mass of forage, leaf, stem and dead material were evaluated. The grazing behavior of the goats was also assessed. Significant effect of interaction was observed (p < 0.05) on pasture height and on the dead material dry mass yield of the pasture among cropping systems and grazing periods. There was a significant effect of the different systems (p < 0.05) on the yield of forage dry matter, leaf dry matter and leaf/stem ratio. The SPS presented superior grazing time (p = 0.01), with an average of 389.0 min. Regarding rumination and moving times, there was no difference between cropping systems and grazing periods (p > 0.05). The Andropogon grass has the potential to be used in SPS with grazing goats under continuous stocking, positively affecting the pasture and animal behavior.
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ERAZ, RLE, and MEO conceived the ideas and designed the methodology; ERAZ, DLCA, JVC, IRS, GSR and DMAB collected the data; RLE, TPDS analyzed the data; RLE, TPDS and MEO led the writing of the manuscript; all authors contributed critically to the drafts and gave final approval for publication.
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Zambrano, E.R.A., Edvan, R.L., Oliveira, M.E. et al. Characterization of pasture of Andropogon grass and behavior of grazing goats in a silvopastoral system. Agroforest Syst 95, 1155–1165 (2021). https://doi.org/10.1007/s10457-021-00638-2
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DOI: https://doi.org/10.1007/s10457-021-00638-2