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Characterization of pasture of Andropogon grass and behavior of grazing goats in a silvopastoral system
Agroforestry Systems ( IF 2.2 ) Pub Date : 2021-06-11 , DOI: 10.1007/s10457-021-00638-2
Eyner Ricardo Arias Zambrano , Ricardo Loiola Edvan , Maria Elizabete Oliveira , Daniel Louçana Da Costa Araujo , Jandson Vieira Costa , Ivone Rodrigues Da Silva , Dhiéssica Morgana Alves Barros , Graziele De Sousa Reis , Tairon Pannunzio Dias-Silva

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.



中文翻译:

林牧系统中穿山甲草的牧场特征和放牧山羊的行为

目的是评估牧场的特征和在连续放养条件下放牧山羊的行为,与它的单一栽培 (MC) 相比,在穿山甲草 ( Andropogon gayanus Kunth cv. Planaltina)的林牧系统 (SPS) 中。处理包括两种种植系统:单一栽培的穿山甲草和林牧系统——本地树木与穿山甲草混合的 SPS,在五个放牧期使用山羊(2 月、3 月、4 月、5 月和 6 月)进行评估。评估了牧场高度、叶/茎比和草料、叶、茎和死物质的干重。还评估了山羊的放牧行为。观察到相互作用的显着影响(p < 0.05) 对牧草高度和耕作制度和放牧时期牧草死物质干物质产量的影响。不同系统牧草干物质产量、叶干物质和叶茎比有显着影响(p <  0.05)。SPS 表现出优越的放牧时间 ( p =  0.01),平均为 389.0 分钟。关于反刍和移动时间,种植制度和放牧期之间没有差异(p > 0.05)。Andropogon 草有可能用于在连续放养下放牧山羊的 SPS,对牧场和动物行为产生积极影响。

更新日期:2021-06-11
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