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      Herbage accumulation and grazing losses on Mulato grass subjected to strategies of rotational stocking management

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          Abstract

          Grazing management strategies affect not only herbage accumulation but also the efficiency of grazing. This study aimed to evaluate herbage accumulation (leaf, stem and dead material), grazing efficiency and losses of mulato grass (a Brachiaria ruziziensis × Brachiaria brizantha cv. Marandu hybrid) subjected to strategies of rotational stocking management. Treatments consisted of combinations between two post-grazing heights (15 and 20 cm) and two pre-grazing conditions (95 % and maximum canopy light interception (LI)) assigned to experimental units (1200-m² paddocks) according to a 2 × 2 factorial arrangement and a randomized complete block design, with four replications. The experiment was carried out from Jan 2008 to Mar 2009. Season of the year influenced almost all studied variables, resulting in a common pattern of response that was determined by pre- and post-grazing management targets. Herbage accumulation was greater on swards managed at 95 %, with higher accumulation of leaves and lower accumulation of stem and dead material in relation to those managed at maximum LI (99 %) during the entire experimental period. On the other hand, herbage removal by grazing was larger on swards managed at 99 % LI, which was compensated for by the smaller number of grazing cycles and larger losses due to grazing under those circumstances. Under rotational stocking, the pre-grazing LI of 95 % and post-grazing height of 20 cm resulted in efficient grazing and high producing leafy pastures, highlighting the potential of Mulato grass pastures for animal production.

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          Management targets for maximising the short-term herbage intake rate of cattle grazing in Sorghum bicolor

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            Short-term ingestive behaviour of cattle grazing tropical stoloniferous grasses with contrasting growth forms

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              Effect of cutting interval and cutting height on morphogenesis and forage accumulation of guinea grass (Panicum maximum)

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                Author and article information

                Journal
                sa
                Scientia Agricola
                Sci. agric. (Piracicaba, Braz.)
                São Paulo - Escola Superior de Agricultura "Luiz de Queiroz" (Piracicaba, SP, Brazil )
                1678-992X
                August 2013
                : 70
                : 4
                : 242-249
                Affiliations
                Bagé RS orgnameEmbrapa Pecuária Sul orgdiv1CPPSUL Brasil
                Parintins AM orgnameIFAM orgdiv1Depto. de Agronomia Brasil
                Piracicaba SP orgnameUSP orgdiv1ESALQ orgdiv2Depto. de Zootecnia Brasil
                Viçosa MG orgnameUFV orgdiv1Depto. de Zootecnia Brasil
                Uberlândia MG orgnameUFU orgdiv1Depto. de Zootecnia Brasil
                Campus Uruçuca Ba orgnameIFBA orgdiv1Depto. de Zootecnia Brasil
                Article
                S0103-90162013000400004 S0103-9016(13)07000400004
                10.1590/S0103-90162013000400004

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 19, Pages: 8
                Product
                Product Information: website
                Categories
                Animal Science and Pastures

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